{"title":"AR Pumps and Parts","description":"\u003ch2\u003eAR (Annovi Reverberi) Pressure Washer Pumps\u003c\/h2\u003e\u003cp\u003eAR pumps are a popular choice for commercial pressure washing with a reputation for durability and easy parts availability. Sun Brite Supply in Gaithersburg, MD carries AR pump models and replacement parts.\u003c\/p\u003e\u003ch3\u003eAR Pump Models\u003c\/h3\u003e\u003cp\u003eWe stock common AR pump models including the RCA, RRA, and RSV series. If you need a specific AR pump or rebuild kit, call us and we will check stock or get it ordered.\u003c\/p\u003e\u003ch3\u003eRelated Categories\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pumps\"\u003eAll Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pump-parts\"\u003ePump Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pump-oil\"\u003ePump Oil\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNeed help choosing the right product?\u003c\/strong\u003e Call us at \u003ca href=\"tel:+13015199274\"\u003e(301) 519-9274\u003c\/a\u003e — our team has over 30 years of hands-on pressure washing experience.\u003c\/p\u003e","products":[{"product_id":"xmv3g30d-ar-pump-for-7-8-hp-engine","title":"Xmv3g30d-f24 3GPM 3000PSI 1\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eXmv3g30d-f24 3GPM 3000PSI 1\" Gas Flange is a professional-grade pump parts from GP rated at 3000 PSI and 3 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement flange for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a flange wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Flange\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlange\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis flange fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump flange need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":37763788603592,"sku":"4832","price":645.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/04832_7dd9ede1-ec09-4024-8496-a69f0e4e9792.webp?v=1774231373"},{"product_id":"xmv3g25d-ar-pump-3000-psi-for-6-7-hp-pressure-washers","title":"Xmv3g27d-f25 3GPM 2700PSI 3\/4\" Gas","description":"\u003cp\u003e\u003cstrong\u003eXmv3g27d-f25 3GPM 2700PSI 3\/4\" Gas is a professional-grade pump parts from GP rated at 2700 PSI and 3 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2700\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2700 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":37763809181896,"sku":"1783","price":615.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/01783_773f7915-c821-488b-809a-f1a482e469b1.webp?v=1774231373"},{"product_id":"rk1528hn-4-0gpm-4000psi-1450rpm-24mm-x-30mm-shaft","title":"RK1528HN 4.0GPM 4000PSI 1450RPM 24mm x 30mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eRK1528HN 4.0GPM 4000PSI 1450RPM 24mm x 30mm SHAFT is a professional-grade pump parts from GP rated at 4000 PSI and 4.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":37763906470088,"sku":"4597","price":690.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/04597_0f1c836f-1814-4821-a2e5-ae5ea9a5b341.webp?v=1774231858"},{"product_id":"rka4g40hn-4gpm-4000psi-1750rpm-24mm-short-shaft-1-long","title":"RKA4G40HN 4GPM 4000PSI 1750RPM 24mm SHORT SHAFT 1\"","description":"\u003cp\u003e\u003cstrong\u003eRKA4G40HN 4GPM 4000PSI 1750RPM 24mm SHORT SHAFT 1\" is a professional-grade pump parts from GP rated at 4000 PSI and 4 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":37763914432712,"sku":"6242","price":827.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06242_0c2ed32d-0bde-4f53-adb4-11bb79bf0da3.webp?v=1774231852"},{"product_id":"rka4g30n-4gpm-3000psi-1750rpm-24mm-shaft","title":"RKA4G30N 4GPM 3000PSI 1750RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eRKA4G30N 4GPM 3000PSI 1750RPM 24mm SHAFT is a professional-grade pump parts from GP rated at 3000 PSI and 4 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":37763973775560,"sku":"3900","price":797.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/3900_d5ca5608-3240-4363-a40b-3d01cf026970.jpg?v=1784853298"},{"product_id":"xma35g25n-3-5gpm-2500psi-1750rpm-24mm","title":"XMA35G25N 3.5GPM 2500PSI 1750RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eXMA35G25N 3.5GPM 2500PSI 1750RPM 24mm is a professional-grade pump parts from GP rated at 2500 PSI and 3.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":44979351453896,"sku":"4591","price":464.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/04591-2_a8f63f72-1e1f-4991-a377-6cfe7b0ca3f5.webp?v=1775142744"},{"product_id":"xw-m21-28n-5-55gpm-4060psi-1450rpm-24mm","title":"XW-M21.28N 5.55GPM 4060PSI 1450RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eXW-M21.28N 5.55GPM 4060PSI 1450RPM 24mm is a professional-grade pump parts from GP rated at 4060 PSI and 5.55 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4060\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 5.55\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4060 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.55 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032494334152,"sku":"4592","price":948.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/4592_1b9d36c7-31ae-4308-94b8-7452a4c30093.jpg?v=1784853373"},{"product_id":"xw-m15-30n-4-0gpm-4350psi-1450rpm-24mm","title":"XW-M15.30N 4.0GPM 4350PSI 1450RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eXW-M15.30N 4.0GPM 4350PSI 1450RPM 24mm is a professional-grade pump parts from GP rated at 4350 PSI and 4.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4350\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4350 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032494366920,"sku":"2505","price":948.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/2505_92b83c20-092f-4906-ac8c-6ca34845ec5e.jpg?v=1784853372"},{"product_id":"xwl42-15n-11-0gpm-2200psi-1450rpm-24mm","title":"XWL42.15N 11.0GPM 2200PSI 1450RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eXWL42.15N 11.0GPM 2200PSI 1450RPM 24mm is a professional-grade pump parts from GP rated at 2200 PSI and 11.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2200\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 11.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2200 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032494399688,"sku":"3994","price":1175.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/3994_5148ece9-5be1-4018-80e0-75b9924797eb.jpg?v=1784853375"},{"product_id":"xwa-m8g35n-8gpm-3500psi-1750rpm-24mm-shaft","title":"XWA-M8G35N 8GPM 3500PSI 1750RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eXWA-M8G35N 8GPM 3500PSI 1750RPM 24mm SHAFT is a professional-grade pump parts from GP rated at 3500 PSI and 8 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 8\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032494432456,"sku":"6334","price":962.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6334_3cb063b9-9763-4ca3-9446-22831881ef8b.jpg?v=1784853374"},{"product_id":"xwa-m5-5g40n-5-5gpm-4000psi-1750rpm-24mm","title":"XWA-M5.5G40N 5.5GPM 4000PSI 1750RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eXWA-M5.5G40N 5.5GPM 4000PSI 1750RPM 24mm is a professional-grade pump parts from GP rated at 4000 PSI and 5.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 5.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032494465224,"sku":"1698","price":920.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/1698_f1735484-d844-4adc-8f9b-a20e5efac6a5.jpg?v=1784853373"},{"product_id":"xwa9g30n-9gpm-3000psi-1750rpm-superceded-xw30-25n","title":"Xwa9g30n 9GPM 3000PSI 1750RPM Superceded Xw30.25n","description":"\u003cp\u003e\u003cstrong\u003eXwa9g30n 9GPM 3000PSI 1750RPM Superceded Xw30.25n is a professional-grade pump parts from GP rated at 3000 PSI and 9 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 9\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032494497992,"sku":"3916","price":1000.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/03916-2_5533328e-8ded-4273-aebb-4fa41cf427fd.webp?v=1774231368"},{"product_id":"xt814n-2-1gpm-2000psi-1450rpm-24mm-shaft","title":"XT814N 2.1GPM 2000PSI 1450RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eXT814N 2.1GPM 2000PSI 1450RPM 24mm SHAFT is a professional-grade pump parts from GP rated at 2000 PSI and 2.1 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 2.1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.1 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032494530760,"sku":"3890","price":615.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/03890-2_ab470dc4-4d98-45a8-95fc-5794f5af8497.webp?v=1774231369"},{"product_id":"xm1117n-3gpm-3000psi-1450rpm-24mm","title":"XM1117N 3GPM 3000PSI 1450RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eXM1117N 3GPM 3000PSI 1450RPM 24mm is a professional-grade pump parts from GP rated at 3000 PSI and 3 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032494596296,"sku":"4596","price":548.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/04596-2_d88723a8-20e5-4c31-8017-ceeaf9647de8.webp?v=1774231374"},{"product_id":"sxwa5-5g50n-5-5gpm-5000psi-1750rpm-24mm","title":"SXWA5.5G50N 5.5GPM 5000PSI 1750RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eSXWA5.5G50N 5.5GPM 5000PSI 1750RPM 24mm is a professional-grade pump parts from GP rated at 5000 PSI and 5.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 5000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 5.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032499380424,"sku":"6610","price":1486.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6610_c742a903-6259-42d5-be01-f43ac8f2e994.jpg?v=1784853341"},{"product_id":"sxw21-35-5-5gpm-5100psi-1450rpm-24mm","title":"SXW21.35 5.5GPM 5100PSI 1450RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eSXW21.35 5.5GPM 5100PSI 1450RPM 24mm is a professional-grade pump parts from GP rated at 5100 PSI and 5.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 5100\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 5.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5100 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032499413192,"sku":"6000","price":1486.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6000_2ba28f28-0171-4fa0-8c01-8b1dfdabdbbc.jpg?v=1784853341"},{"product_id":"sxw15-35-4gpm-5100psi-1450rpm-24mm-shaft","title":"SXW15.35 4GPM 5100PSI 1450RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eSXW15.35 4GPM 5100PSI 1450RPM 24mm SHAFT is a professional-grade pump parts from GP rated at 5100 PSI and 4 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 5100\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5100 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032499445960,"sku":"5999","price":1486.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/05999-2_b7f66bba-5a9a-4401-b9b4-c40d3382e67e.webp?v=1774231564"},{"product_id":"sxmv4g40d-f24-4gpm-4000psi-1-gas","title":"Sxmv4g40d-f24 4GPM 4000PSI 1\" Gas","description":"\u003cp\u003e\u003cstrong\u003eSxmv4g40d-f24 4GPM 4000PSI 1\" Gas is a professional-grade pump parts from GP rated at 4000 PSI and 4 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032499478728,"sku":"6551","price":676.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6551_c542fbd9-fadc-45ce-bb53-83a51b58fce5.jpg?v=1784853340"},{"product_id":"sxmv3-0g40-f24-3-5gpm-4000-psi-1-gas","title":"Sxmv3.0g40-f24 3.5GPM 4000 PSI 1\" Gas","description":"\u003cp\u003e\u003cstrong\u003eSxmv3.0g40-f24 3.5GPM 4000 PSI 1\" Gas is a professional-grade pump parts from GP rated at 4000 PSI and 3.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032499511496,"sku":"6202","price":696.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06202-2_64661c2a-7c5d-4f1d-8e71-352ecd10f919.webp?v=1774231565"},{"product_id":"sjv3g27d-ez-3gpm-2700psi-3-4-gas-flange","title":"Sjv3g27d-ez 3GPM 2700PSI 3\/4\" GAS Flange","description":"\u003cp\u003e\u003cstrong\u003eSjv3g27d-ez 3GPM 2700PSI 3\/4\" GAS Flange is a professional-grade pump parts from GP rated at 2700 PSI and 3 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement flange for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a flange wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2700\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Flange\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlange\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2700 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis flange fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump flange need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032502919368,"sku":"6613","price":504.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6613_402a2964-25da-4a4d-8571-d3a1d82b39b3.jpg?v=1784853324"},{"product_id":"sjv2-5g27d-f7-2-5gpm-2700psi-3-4-gas","title":"Sjv2.5g27d-f7 2.5GPM 2700PSI 3\/4\" Gas","description":"\u003cp\u003e\u003cstrong\u003eSjv2.5g27d-f7 2.5GPM 2700PSI 3\/4\" Gas is a professional-grade pump parts from GP rated at 2700 PSI and 2.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2700\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 2.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2700 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032502952136,"sku":"6444","price":504.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06444-2_8e6ce001-75c2-4012-b98a-80a2f5b6cad0.webp?v=1774231742"},{"product_id":"rrv4g40hd-f24-4-0gpm-4000psi-1-gas-flange","title":"Rrv4g40hd-f24 4.0GPM 4000PSI 1\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eRrv4g40hd-f24 4.0GPM 4000PSI 1\" Gas Flange is a professional-grade pump parts from GP rated at 4000 PSI and 4.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement flange for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a flange wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Flange\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlange\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis flange fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump flange need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032504066248,"sku":"6942","price":479.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06942-2_4fc5885e-dc0f-4f80-98bf-f8c6f6d81e2c.webp?v=1774231805"},{"product_id":"rmw2-2g24-ez-sx-b-2-2gpm-2400psi-7-8-vertical-re","title":"Rmw2.2g24-ez-sx(b) 2.2GPM 2400PSI 7\/8\" Vertical(re","description":"\u003cp\u003e\u003cstrong\u003eRmw2.2g24-ez-sx(b) 2.2GPM 2400PSI 7\/8\" Vertical(re is a professional-grade pump parts from GP rated at 2400 PSI and 2.2 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2400\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 2.2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2400 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.2 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505606344,"sku":"7005","price":201.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/7005_01_web_b4ef617d-fea2-4f28-b6d4-2b1c787d8087.png?v=1776946511"},{"product_id":"rmv25g30-ez-axial-pump-2-5gpm-3000-psi-3-4-gas","title":"Rmv25g30-ez Axial Pump 2.5GPM 3000 PSI 3\/4\" GAS","description":"\u003cp\u003e\u003cstrong\u003eRmv25g30-ez Axial Pump 2.5GPM 3000 PSI 3\/4\" GAS is a professional-grade pump parts from GP rated at 3000 PSI and 2.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 2.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505639112,"sku":"6108","price":341.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06108-2_9c666837-6b52-4847-b5c7-0b48b1493d56.webp?v=1774231843"},{"product_id":"rkv4g40hd-f24-4gpm-4000psi-1-hollow-ngeshaft-nick","title":"Rkv4g40hd-f24 4GPM 4000PSI 1\" Hollow Ngeshaft Nick","description":"\u003cp\u003e\u003cstrong\u003eRkv4g40hd-f24 4GPM 4000PSI 1\" Hollow Ngeshaft Nick is a professional-grade pump parts from GP rated at 4000 PSI and 4 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505737416,"sku":"6241","price":888.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6241_911e5db9-5740-4cfb-b362-b46d80991296.jpg?v=1784853301"},{"product_id":"rkv4g37d-f24-4gpm-3700-psi-1-gas","title":"Rkv4g37d-f24 4GPM 3700 PSI 1\" GAS","description":"\u003cp\u003e\u003cstrong\u003eRkv4g37d-f24 4GPM 3700 PSI 1\" GAS is a professional-grade pump parts from GP rated at 3700 PSI and 4 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3700\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3700 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505770184,"sku":"6696","price":807.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6696_eaf1cb9b-8e15-43b6-8cfb-72e12812db7c.jpg?v=1784853299"},{"product_id":"rkv4037-f24-3700-psi-pump-1-gas-flange-repl-fo","title":"Rkv4037-f24 3700 PSI Pump 1\" Gas Flange **repl. Fo","description":"\u003cp\u003e\u003cstrong\u003eRkv4037-f24 3700 PSI Pump 1\" Gas Flange **repl. Fo is a professional-grade pump parts rated to 3700 PSI. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement flange for triplex plunger pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a flange wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3700\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Flange\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlange\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3700 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis flange fits triplex plunger pumps used in pressure washing equipment. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump flange need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505802952,"sku":"6593","price":803.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6593_1ccfbe8c-9c27-4954-a175-a61789cacdde.jpg?v=1784853298"},{"product_id":"rka4g30e-f17-4gpm-3000psi-1750rpm-1-1-8-hollow-sha","title":"Rka4g30e-f17 4GPM 3000PSI 1750RPM 1 1\/8\" HOLLOW Sha","description":"\u003cp\u003e\u003cstrong\u003eRka4g30e-f17 4GPM 3000PSI 1750RPM 1 1\/8\" HOLLOW Sha is a professional-grade pump parts from GP rated at 3000 PSI and 4 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505835720,"sku":"3339","price":685.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/03339_028d38fe-e157-41d7-8062-b9c7440a4b6e.webp?v=1774231852"},{"product_id":"rka45g40hn-4-5gpm-4000-psi-1750rpm-24mm-shaft","title":"RKA45G40HN 4.5GPM 4000 PSI 1750RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eRKA45G40HN 4.5GPM 4000 PSI 1750RPM 24mm SHAFT is a professional-grade pump parts from GP rated at 4000 PSI and 4.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505868488,"sku":"6180","price":827.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06180-2_61d25fba-69af-4a85-ac69-c48fbaf92048.webp?v=1774231853"},{"product_id":"rg2125hn-5-5gpm-3600psi-1450rpm-24mm-shaft-repl","title":"RG2125HN 5.5GPM 3600PSI 1450RPM 24mm SHAFT **REPL.","description":"\u003cp\u003e\u003cstrong\u003eRG2125HN 5.5GPM 3600PSI 1450RPM 24mm SHAFT **REPL. is a professional-grade pump parts from GP rated at 3600 PSI and 5.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3600\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 5.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3600 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505966792,"sku":"6007","price":678.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6007_01_web_ca1030ba-2b14-4090-a77b-c2b9b352239d.png?v=1774231860"},{"product_id":"rg1528hn-4gpm-4000psi-1450rpm-24mm-x-40mm-shaft","title":"RG1528HN 4GPM 4000PSI 1450RPM 24mm x 40mm SHAFT **","description":"\u003cp\u003e\u003cstrong\u003eRG1528HN 4GPM 4000PSI 1450RPM 24mm x 40mm SHAFT ** is a professional-grade pump parts from GP rated at 4000 PSI and 4 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 4000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032505999560,"sku":"6006","price":678.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06006-2_4862f200-6e97-483d-935d-eb381ddaff41.webp?v=1774231862"},{"product_id":"rcv3g27d-3-0gpm-2700psi-3400rpm-3-4-shaft-gas-fla","title":"Rcv3g27d 3.0GPM 2700PSI 3400RPM 3\/4\" Shaft Gas Fla","description":"\u003cp\u003e\u003cstrong\u003eRcv3g27d 3.0GPM 2700PSI 3400RPM 3\/4\" Shaft Gas Fla is a professional-grade pump parts from GP rated at 2700 PSI and 3.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2700\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2700 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508096712,"sku":"6749","price":555.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6749_d96f48ea-0898-4ad4-80b4-7e3fd75205de.jpg?v=1784853275"},{"product_id":"rcv3g25e-3-0gpm-2500psi-3400rpm-5-8-shaft-elec-fl","title":"Rcv3g25e 3.0GPM 2500PSI 3400RPM 5\/8\" Shaft Elec Fl","description":"\u003cp\u003e\u003cstrong\u003eRcv3g25e 3.0GPM 2500PSI 3400RPM 5\/8\" Shaft Elec Fl is a professional-grade pump parts from GP rated at 2500 PSI and 3.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508129480,"sku":"6691","price":555.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6691_51760cf7-7629-46dd-a29d-613a538c2eeb.jpg?v=1784853273"},{"product_id":"rcv3-5g25d-f8-3-5gpm-2500psi-3400rpm-3-4-shaft-el","title":"Rcv3.5g25d-f8 3.5GPM 2500PSI 3400RPM 3\/4\" Shaft El","description":"\u003cp\u003e\u003cstrong\u003eRcv3.5g25d-f8 3.5GPM 2500PSI 3400RPM 3\/4\" Shaft El is a professional-grade pump parts from GP rated at 2500 PSI and 3.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508162248,"sku":"6182","price":554.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6182_4b44c6c7-33ae-4818-ab45-552c1e472d3d.gif?v=1784853274"},{"product_id":"rcv3-5g25d-f7-3-5gpm-25oopsi-3-4-shaft-gas-flange","title":"Rcv3.5g25d-f7 3.5GPM 25OOPSI 3\/4 Shaft Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eRcv3.5g25d-f7 3.5GPM 25OOPSI 3\/4 Shaft Gas Flange is a professional-grade fittings and adapters from GP. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003ebrass fitting for pressure washer plumbing.\u003c\/p\u003e\n\u003cp\u003eBrass is the standard choice for pressure wash fittings. Handles high temperatures and chemical exposure. Will not rust. Standard choice for pressure wash plumbing. Every connection in your system matters. A single bad fitting causes leaks, pressure drops, and wasted time on the job.\u003c\/p\u003e\n\u003cp\u003eCheck your thread type before ordering. NPT (National Pipe Thread) is the US standard. BSP (British Standard Pipe) is common on imported equipment. The two are not interchangeable even if the sizes look similar.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass. Handles high temperatures and chemical exposure. Will not rust. Standard choice for pressure wash plumbing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eChemical Resistance:\u003c\/strong\u003e Handles soaps, detergents, sodium hypochlorite, and other common pressure washing chemicals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTemperature Rating:\u003c\/strong\u003e Safe for cold and hot water applications\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 250F (brass), 300F+ (stainless)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemical Compatible\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes, handles SH, soaps, and solvents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eStandard NPT fittings connect to any equipment with matching NPT threads. Common connections in a pressure washing rig include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePump inlet and outlet ports\u003c\/li\u003e \u003cli\u003eUnloader valve connections\u003c\/li\u003e \u003cli\u003eChemical injection points and downstream injectors\u003c\/li\u003e \u003cli\u003eHose connections and quick connect adapters\u003c\/li\u003e \u003cli\u003eSpray gun inlets\u003c\/li\u003e \u003cli\u003eBuffer tank outlets and float valve assemblies\u003c\/li\u003e \u003cli\u003eHot water coil connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are connecting two different sizes or thread types, check our adapter fittings section. We carry reducers, bushings, and cross-thread adapters in brass and stainless.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePressure wash rigs need reliable plumbing. Every fitting is a potential leak point. The right fitting, properly installed, holds pressure and stays leak-free for years.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eRig plumbing builds\u003c\/strong\u003e on trailer mounts and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePump connections\u003c\/strong\u003e on inlet and outlet ports\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eChemical injection\u003c\/strong\u003e plumbing for downstream and X-Jet setups\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHot water systems\u003c\/strong\u003e where fittings need to handle heat and pressure\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eField repair\u003c\/strong\u003e when a corroded or damaged fitting needs replacement on the job\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep a few common fittings in your parts box. A cracked fitting on a job costs you hours. A $5 spare in your truck costs you nothing.\u003c\/p\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eWrap male NPT threads with 3 to 5 wraps of Teflon tape. Wrap clockwise when looking at the end of the fitting. Hand tighten first, then snug with a wrench. Do not over-tighten brass. Brass is softer than steel and will crack if you force it.\u003c\/p\u003e\n\u003cp\u003eFor connections above 3000 PSI, use pipe dope (thread sealant) instead of or in addition to Teflon tape. Pipe dope fills thread gaps better under high pressure.\u003c\/p\u003e\n\u003cp\u003eAfter install, pressurize the system and check every connection for leaks. Fix leaks right away. A slow drip becomes a blown fitting under full pressure. Inspect your fittings regularly for corrosion, hairline cracks, and thread damage. Replace any fitting that shows wear.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between NPT and BSP threads?\u003c\/h3\u003e\n\u003cp\u003eNPT (National Pipe Thread) is the US standard. The threads are tapered and seal with Teflon tape or pipe dope. BSP (British Standard Pipe) comes in parallel and tapered versions. NPT and BSP are not interchangeable even when the sizes look similar. If your equipment was made overseas, check for BSP threads before ordering.\u003c\/p\u003e\n\u003ch3\u003eCan I use brass fittings with bleach and sodium hypochlorite?\u003c\/h3\u003e\n\u003cp\u003eYes. Brass handles sodium hypochlorite (SH) well at the concentrations used in pressure washing, typically 10 to 12.5 percent. For long-term chemical exposure, stainless steel lasts longer, but brass is the standard and works fine for most setups.\u003c\/p\u003e\n\u003ch3\u003eWhat size fitting do I need for my pressure washer?\u003c\/h3\u003e\n\u003cp\u003eMost residential pressure washers use 1\/4 inch fittings. Commercial units typically use 3\/8 inch. Larger systems and hot water units often use 1\/2 inch or 3\/4 inch. Check the ports on your pump and equipment to match the correct size.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer fittings and adapters near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer fittings and adapters for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Fittings and Adapters from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eBuilding out your plumbing? Browse our brass fittings, stainless steel adapters, quick connect couplers, and garden hose connections. We also carry Teflon tape and pipe dope for leak-free installs.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings-and-adapters\"\u003eBrowse Fittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508195016,"sku":"6789","price":555.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06789_b7628688-804c-4f1a-920c-150f73826c2f.webp?v=1774231947"},{"product_id":"rcv2g25e-f8-2-0gpm-2500psi-3400rpm-5-8-shaft-elec","title":"Rcv2g25e-f8 2.0GPM 2500PSI 3400RPM 5\/8\" Shaft Elec","description":"\u003cp\u003e\u003cstrong\u003eRcv2g25e-f8 2.0GPM 2500PSI 3400RPM 5\/8\" Shaft Elec is a professional-grade pump parts from GP rated at 2500 PSI and 2.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 2.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508227784,"sku":"6689","price":555.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06689_9f99a3d6-bd18-42d2-a081-da25147d2fd3.webp?v=1774231949"},{"product_id":"rca3g25n-3gpm-2500psi-1750rpm-24mm","title":"RCA3G25N 3GPM 2500PSI 1750RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eRCA3G25N 3GPM 2500PSI 1750RPM 24mm is a professional-grade pump parts from GP rated at 2500 PSI and 3 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508260552,"sku":"6661","price":521.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6661_5807f84e-57c8-4d13-8efe-c29d4f6accb1.jpg?v=1784853272"},{"product_id":"rca3g25e-3-0gpm-2500psi-1750rpm-5-8-shaft-elec-fl","title":"Rca3g25e 3.0GPM 2500PSI 1750RPM 5\/8\" Shaft Elec Fl","description":"\u003cp\u003e\u003cstrong\u003eRca3g25e 3.0GPM 2500PSI 1750RPM 5\/8\" Shaft Elec Fl is a professional-grade pump parts from GP rated at 2500 PSI and 3.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508326088,"sku":"6685","price":555.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6685_e928b73f-8ddd-4553-bca9-a6b00b96183a.jpg?v=1784853272"},{"product_id":"rca3-5g25n-3-5gpm-2500psi-1750rpm-24mm","title":"RCA3.5G25N 3.5GPM 2500PSI 1750RPM 24mm","description":"\u003cp\u003e\u003cstrong\u003eRCA3.5G25N 3.5GPM 2500PSI 1750RPM 24mm is a professional-grade pump parts from GP rated at 2500 PSI and 3.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508293320,"sku":"6662","price":521.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6662_b7ca5055-50a6-4625-8898-0097681a31e9.jpg?v=1784853270"},{"product_id":"rca3-5g16e-3-5gpm-1600psi-1750rpm-5-8-shaft-elec","title":"Rca3.5g16e 3.5GPM 1600PSI 1750RPM 5\/8\" Shaft Elec","description":"\u003cp\u003e\u003cstrong\u003eRca3.5g16e 3.5GPM 1600PSI 1750RPM 5\/8\" Shaft Elec is a professional-grade pump parts from GP rated at 1600 PSI and 3.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 1600\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1600 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508358856,"sku":"6686","price":555.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6686_2cd99da6-c3ca-4300-bb58-bf524d08944f.jpg?v=1784853270"},{"product_id":"rca2g22e-f8-2-0gpm-2200psi-1750rpm-5-8-shaft-elec","title":"Rca2g22e-f8 2.0GPM 2200PSI 1750RPM 5\/8\" Shaft Elec","description":"\u003cp\u003e\u003cstrong\u003eRca2g22e-f8 2.0GPM 2200PSI 1750RPM 5\/8\" Shaft Elec is a professional-grade pump parts from GP rated at 2200 PSI and 2.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2200\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 2.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2200 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508391624,"sku":"6664","price":555.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06664_46c1f531-bcdb-4bdc-b20c-e4ea5c0356f9.webp?v=1774231955"},{"product_id":"rca2-5g25n-2-1-to-2-5gpm-2500psi-1450-to-1750rpm","title":"Rca2.5g25n 2.1 to 2.5GPM 2500PSI 1450 to 1750RPM","description":"\u003cp\u003e\u003cstrong\u003eRca2.5g25n 2.1 to 2.5GPM 2500PSI 1450 to 1750RPM is a professional-grade pump parts from GP rated at 2500 PSI and 2.5 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 2500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 2.5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032508424392,"sku":"6658","price":521.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06658_51455922-ba1b-4c65-ab68-1e44ad6b499d.webp?v=1774231957"},{"product_id":"pmr-xmv3g30d-f24-20242-3-0gpm-3000psi-1-gas","title":"Pmr Xmv3g30d-f24-20242 3.0GPM 3000PSI 1\" Gas","description":"\u003cp\u003e\u003cstrong\u003ePmr Xmv3g30d-f24-20242 3.0GPM 3000PSI 1\" Gas is a professional-grade pump parts from GP rated at 3000 PSI and 3.0 GPM. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement pump component for GP pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a pump component wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated PSI:\u003c\/strong\u003e 3000\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 3.0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pump Part\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump Part\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP pumps\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part fits GP triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump parts need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-pumps\"\u003eBrowse Pressure Washer Pumps\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032511570120,"sku":"6302","price":782.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06302_8f3c34a0-cbbf-4382-a9ab-5b0d9faf6ea8.webp?v=1774232096"},{"product_id":"kit-2873-oil-seals-sxw","title":"Kit 2873 Oil Seals Sxw","description":"\u003cp\u003e\u003cstrong\u003eKit 2873 Oil Seals Sxw is a professional-grade pump parts. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement seal for triplex plunger pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a seal wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Seal\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis seal fits triplex plunger pumps used in pressure washing equipment. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump seal need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pump-parts\"\u003eBrowse Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032520384712,"sku":"6482","price":53.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6482_e5780ea1-dc38-4731-980d-cc525870ecb1.jpg?v=1784864819"},{"product_id":"kit-2872-2548-pistons-18mm-sxw","title":"KIT 2872\/2548 PISTONS 18mm SXW","description":"\u003cp\u003e\u003cstrong\u003eKIT 2872\/2548 PISTONS 18mm SXW is a professional-grade pump parts. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement piston for triplex plunger pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a piston wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Piston\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis piston fits triplex plunger pumps used in pressure washing equipment. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump piston need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pump-parts\"\u003eBrowse Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032520417480,"sku":"6489","price":177.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6489_6f1946af-30a8-4656-877f-c065834699f0.jpg?v=1784864819"},{"product_id":"kit-2864-check-valves-rk-rka","title":"Kit 2864 Check Valves Rk-rka","description":"\u003cp\u003e\u003cstrong\u003eKit 2864 Check Valves Rk-rka is a professional-grade pump parts. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement valve for triplex plunger pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a valve wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eValve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis valve fits triplex plunger pumps used in pressure washing equipment. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump valve need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pump-parts\"\u003eBrowse Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032520909000,"sku":"6474","price":74.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6474_cbc4f474-3007-4a96-b63d-a7ab7370f8d8.jpg?v=1784864819"},{"product_id":"kit-2189-water-seals-rsv","title":"Kit 2189 Water Seals Rsv","description":"\u003cp\u003e\u003cstrong\u003eKit 2189 Water Seals Rsv is a professional-grade pump parts. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement seal for triplex plunger pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a seal wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Seal\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis seal fits triplex plunger pumps used in pressure washing equipment. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump seal need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pump-parts\"\u003eBrowse Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032522547400,"sku":"6306","price":96.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6306_9b2535a0-0fea-42c1-8498-f11e97770454.jpg?v=1784864818"},{"product_id":"kit-2188-oil-seals-rsv","title":"Kit 2188 Oil Seals Rsv","description":"\u003cp\u003e\u003cstrong\u003eKit 2188 Oil Seals Rsv is a professional-grade pump parts. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement seal for triplex plunger pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a seal wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Seal\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis seal fits triplex plunger pumps used in pressure washing equipment. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump seal need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pump-parts\"\u003eBrowse Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032522580168,"sku":"6342","price":63.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6342_87e1fa17-a528-4adb-9526-1a2ab7e90e40.jpg?v=1784864818"},{"product_id":"kit-2186-check-valves-rsv-rc-rca-rcv","title":"Kit 2186 Check Valves Rsv,rc,rca \u0026 Rcv","description":"\u003cp\u003e\u003cstrong\u003eKit 2186 Check Valves Rsv,rc,rca \u0026amp; Rcv is a professional-grade pump parts. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement valve for triplex plunger pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a valve wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eValve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis valve fits triplex plunger pumps used in pressure washing equipment. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump valve need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pump-parts\"\u003eBrowse Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032522645704,"sku":"6304","price":59.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6304_2acf89ec-f769-4516-b3d8-7f5aaab3312b.jpg?v=1784864818"},{"product_id":"ar-check-valve-kit-1828-xr","title":"AR Check Valve Kit 1828 (XR)","description":"\u003cp\u003e\u003cstrong\u003eAR Check Valve Kit 1828 (XR) is a professional-grade pump parts from AR. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eReplacement valve kit for AR pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a valve kit wears out, you lose pressure, develop leaks, or the pump stops working altogether. Rebuilding with the right parts costs a fraction of a new pump and gets you back to work the same day.\u003c\/p\u003e\n\u003cp\u003eMost pump failures come down to worn seals, scored plungers, or damaged valves. Catching wear early and replacing parts before they fail completely saves the pump body and crankcase from damage.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e AR pumps\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Valve Kit\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Triplex plunger pump rebuild and repair\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eValve Kit\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAR pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis valve kit fits AR triplex plunger pumps. Verify your pump model number before ordering. The model and serial number are on a data plate on the pump body or manifold.\u003c\/p\u003e\n\u003cp\u003eCommon pump brands used in professional pressure washers:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGeneral Pump\u003c\/strong\u003e, popular in commercial trailer rigs and skid systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCat Pumps\u003c\/strong\u003e, premium pumps known for long service life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAR (Annovi Reverberi)\u003c\/strong\u003e, Italian-made pumps in mid-range and commercial units\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eComet\u003c\/strong\u003e, good value for residential and light commercial washers\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGiant \/ Interpump\u003c\/strong\u003e, heavy duty industrial and ultra-high pressure pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which pump you have, call us with the model number and we will match the right parts.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003ePump parts wear out with use. The more hours on the pump, the more frequently you need to rebuild. Here are the most common reasons to order pump parts:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLoss of pressure\u003c\/strong\u003e, usually caused by worn valves, seals, or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater leaking from the pump\u003c\/strong\u003e, typically worn seals or packing\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePulsating pressure\u003c\/strong\u003e, usually a stuck or broken check valve\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOil leaking from the crankcase\u003c\/strong\u003e, worn oil seals\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeasonal rebuild\u003c\/strong\u003e, replacing wear items before the busy season starts\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eBefore disassembling the pump, release all pressure from the system. Disconnect the engine or motor from the pump. Have clean rags and a parts tray ready.\u003c\/p\u003e\n\u003cp\u003eWhen replacing seals and packing, lubricate them with pump oil or silicone grease before installation. Dry seals tear on first startup. Check plungers for scoring or wear marks. A scored plunger will chew through new seals in hours.\u003c\/p\u003e\n\u003cp\u003eUse the correct pump oil. Check your pump manufacturer's recommendation. Most triplex pumps use non-detergent pump oil (not motor oil). Change the pump oil every 200 to 500 hours or at the start of each season.\u003c\/p\u003e\n\u003cp\u003eAfter reassembly, run the pump with water flowing and no pressure for 30 seconds to prime it and seat the seals. Then slowly bring it up to operating pressure and check for leaks.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat are the signs that my pump valve kit need replacement?\u003c\/h3\u003e\n\u003cp\u003eLoss of pressure is the most common sign. Other symptoms include water leaking from the pump head, pulsating pressure, unusual noises, and oil leaking from the crankcase. If you notice any of these, inspect and replace the worn parts before the damage spreads.\u003c\/p\u003e\n\u003ch3\u003eShould I rebuild my pump or buy a new one?\u003c\/h3\u003e\n\u003cp\u003eIn most cases, a rebuild is cheaper and gets you the same performance as a new pump. Seal kits, valve kits, and packing sets cost a fraction of a new pump. The pump body and crankcase last for years if you maintain them. The only time to replace is if the crankcase or manifold is cracked.\u003c\/p\u003e\n\u003ch3\u003eHow often should I rebuild my pressure washer pump?\u003c\/h3\u003e\n\u003cp\u003eIt depends on hours of use. Most commercial washers rebuild pumps every 500 to 1000 hours. Replace seals and valves when you notice pressure loss or leaks. Preventive rebuilds at the start of each season keep you from breaking down on a job.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer pump parts near Gaithersburg, Maryland?\u003c\/h3\u003e\n\u003cp\u003eSun Brite Supply is located at 16620 Oakmont Ave, Gaithersburg, MD 20877. We carry a full selection of pressure washer pump parts for walk-in customers and ship nationwide. Local contractors in Maryland, Virginia, DC, and the Mid-Atlantic area can stop by for same-day pickup. If you are outside the area, order online at sunbritesupplymd.com and we will ship it out fast. Call us at 301-519-9274 if you need help finding the right part.\u003c\/p\u003e \u003ch2\u003eBefore You Order: What to Check\u003c\/h2\u003e\n\u003cp\u003eGetting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel number:\u003c\/strong\u003e Find the model and serial number on your equipment data plate. Write it down before you order.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePort sizes and thread types:\u003c\/strong\u003e Measure your connections. A 3\/8 inch fitting will not thread into a 1\/4 inch port no matter how hard you try.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure and flow ratings:\u003c\/strong\u003e Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOld part comparison:\u003c\/strong\u003e If possible, remove the old part and compare it side by side with the product photos and specs listed here.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStill not sure?\u003c\/strong\u003e Call us before you order. We would rather spend 5 minutes on the phone confirming fitment than process a return because the wrong part showed up.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Buy Your Pump Parts from Sun Brite Supply?\u003c\/h2\u003e\n\u003cp\u003eSun Brite Supply ships from our warehouse in Gaithersburg, Maryland. We stock the same brands the pros run. General Pump, Cat Pumps, AR, Honda, Hannay, Suttner, and more. No knockoffs. No mystery brands. Every part we sell has been vetted by people who work on this equipment every day.\u003c\/p\u003e\n\u003cp\u003eNeed help picking the right part? Call us at 301-519-9274. You will talk to someone who actually knows pressure washing equipment, not a script reader at a call center. We can verify fitment, suggest alternatives, and match you with the right part the first time. Our team has over 50 years of combined experience in the pressure washing industry. We deal with these machines daily and know which parts work and which ones cause problems.\u003c\/p\u003e\n\u003cp\u003eLocal to Maryland or the DMV area? Stop by our Gaithersburg location at 16620 Oakmont Ave for walk-in counter sales. We can pull parts, check fitment in person, and get you set up on the spot. Contractors across the Mid-Atlantic rely on Sun Brite Supply for same-day parts when they need them fast.\u003c\/p\u003e\n\u003cp\u003eWe carry over 2,700 pressure washing parts and accessories in stock. Pumps, hoses, fittings, nozzles, chemicals, engine parts, burner parts, and electrical controls. Browse our full catalog at sunbritesupplymd.com and order everything you need from one supplier. One order, one shipment, less downtime waiting on parts.\u003c\/p\u003e\n\u003cp\u003eMost orders ship the same business day when placed before 2 PM Eastern. We ship nationwide from Maryland, so whether you are in Virginia, Pennsylvania, DC, or across the country, you get your parts fast. We keep popular parts in stock so you are not waiting on backorders.\u003c\/p\u003e\n\u003cp\u003eShop online at sunbritesupplymd.com or call us directly at 301-519-9274. Over 2,700 parts ready to ship. We are here to help you keep your equipment running and your business moving forward.\u003c\/p\u003e \u003cp\u003eWe stock pump repair kits, valve kits, seal kits, oil, and individual components for General Pump, Cat Pumps, AR, Comet, and more. Need a complete pump? Check our triplex plunger pumps.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pump-parts\"\u003eBrowse Pump Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/fittings\"\u003eFittings \u0026amp; Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-washer-repair-parts\"\u003ePressure Washer Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Brite Supply","offers":[{"title":"Default Title","offer_id":45032555217096,"sku":"3398","price":68.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/3398_01_web_250ce6ea-cae2-4b07-a7e7-c5f10084381d.png?v=1774233311"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/collections\/ar-pumps.png?v=1783353618","url":"https:\/\/sunbritesupplymd.com\/collections\/ar-pumps.oembed","provider":"Sun Brite Supply","version":"1.0","type":"link"}