{"title":"Comet Pumps","description":"\u003ch2\u003eComet Pumps\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade equipment and supplies at Sun Brite Supply — Gaithersburg, MD\u003c\/p\u003e\n\n\u003cp\u003eComet pumps deliver consistent performance for pressure washing contractors who demand dependable equipment. Italian-engineered and built to handle the demands of daily commercial use.\u003c\/p\u003e\n\u003cp\u003eWe carry Comet direct-drive and belt-drive models plus complete repair kits. Parts are interchangeable across many Comet series, making field service straightforward.\u003c\/p\u003e\n\u003c!-- SPLIT --\u003e\n\n\u003ch2\u003eWhat to Know Before You Buy\u003c\/h2\u003e\n\u003cp\u003eCall \u003ca href=\"tel:+13015199274\"\u003e(301) 519-9274\u003c\/a\u003e for Comet pump sizing and compatibility.\u003c\/p\u003e\n\n\u003cp\u003eOEM \u0026amp; Aftermarket\u003c\/p\u003e\n\u003cp\u003eFactory and compatible replacement options for every budget.\u003c\/p\u003e\n\n\u003cp\u003eSeal Kits In Stock\u003c\/p\u003e\n\u003cp\u003eRebuild your pump instead of replacing it   -   parts always available.\u003c\/p\u003e\n\n\u003cp\u003eMulti-Brand Selection\u003c\/p\u003e\n\u003cp\u003eAR, Comet, General Pump, UDOR, and Emperor models.\u003c\/p\u003e\n\n\u003cp\u003eBelt \u0026amp; Direct Drive\u003c\/p\u003e\n\u003cp\u003eMatch the drive type to your run hours and application.\u003c\/p\u003e\n\n\u003ch3\u003ePump Brand Comparison\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eStrength\u003c\/th\u003e\n\u003cth\u003eDrive Types\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAR (Annovi Reverberi)\u003c\/td\u003e\n\u003ctd\u003eWide parts availability\u003c\/td\u003e\n\u003ctd\u003eDirect \u0026amp; Belt\u003c\/td\u003e\n\u003ctd\u003eGeneral commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGeneral Pump\u003c\/td\u003e\n\u003ctd\u003eLong service life\u003c\/td\u003e\n\u003ctd\u003eBelt-drive focus\u003c\/td\u003e\n\u003ctd\u003eHigh-hour operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComet\u003c\/td\u003e\n\u003ctd\u003eItalian engineering\u003c\/td\u003e\n\u003ctd\u003eDirect \u0026amp; Belt\u003c\/td\u003e\n\u003ctd\u003eDaily commercial use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUDOR\u003c\/td\u003e\n\u003ctd\u003eCeramic plunger tech\u003c\/td\u003e\n\u003ctd\u003eMultiple configs\u003c\/td\u003e\n\u003ctd\u003eSpraying \u0026amp; PW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmperor\u003c\/td\u003e\n\u003ctd\u003eBudget-friendly\u003c\/td\u003e\n\u003ctd\u003eDirect \u0026amp; Belt\u003c\/td\u003e\n\u003ctd\u003eCost-conscious contractors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003eHow do I know when my pump needs rebuilding?\u003c\/p\u003e\n\u003cp\u003eWater leaking from the pump body, loss of pressure, or pulsating output are all signs of worn seals. A seal kit rebuild is the first repair to try before replacing the entire pump.\u003c\/p\u003e\n\n\u003cp\u003eWhat is the difference between belt drive and direct drive?\u003c\/p\u003e\n\u003cp\u003eDirect drive pumps bolt directly to the engine shaft and spin at engine RPM (3,400+). Belt drive pumps use a pulley system to reduce RPM to 1,400-1,700, resulting in less wear and longer pump life.\u003c\/p\u003e\n\n\u003cp\u003eHow do I match a pump to my engine?\u003c\/p\u003e\n\u003cp\u003eYou need to match the pump shaft size, RPM rating, and HP requirement to your engine output. Call us with your engine model and desired PSI\/GPM and we will spec the right pump.\u003c\/p\u003e\n\n\u003cp\u003eHow often should I change pump oil?\u003c\/p\u003e\n\u003cp\u003eChange pump oil every 50 hours of use or monthly, whichever comes first. Use pump-specific oil   -   do not substitute motor oil. Low or contaminated pump oil is the number one cause of premature pump failure.\u003c\/p\u003e\n\n\u003cp\u003eCan I upgrade from direct drive to belt drive?\u003c\/p\u003e\n\u003cp\u003eYes. You need a pump-made-ready assembly with the correct mounting bracket and pulley kit for your engine. The upgrade pays for itself in longer pump life and smoother operation.\u003c\/p\u003e\n\n\u003cp\u003eNeed Help Choosing? Call Us.\u003c\/p\u003e\n\u003cp\u003e30 years of industry experience. \u003ca href=\"tel:+13015199274\"\u003e(301) 519-9274\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Collections\u003c\/h3\u003e\n\n\u003ca href=\"\/collections\/pumps\"\u003eAll Pumps\u003c\/a\u003e\n\u003ca href=\"\/collections\/ar-pumps\"\u003eAR Pumps\u003c\/a\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"CollectionPage\",\"name\":\"Comet Pumps\",\"description\":\"Comet pumps deliver consistent performance for pressure washing contractors who demand dependable equipment. Italian-engineered and built to handle the demands \",\"url\":\"https:\/\/sunbritesupplymd.com\/collections\/comet-pumps\",\"isPartOf\":{\"@type\":\"WebSite\",\"name\":\"Sun Brite Supply of Maryland\",\"url\":\"https:\/\/sunbritesupplymd.com\"}},{\"@type\":\"LocalBusiness\",\"name\":\"Sun Brite Supply of Maryland\",\"url\":\"https:\/\/sunbritesupplymd.com\",\"telephone\":\"+1-301-519-9274\",\"address\":{\"@type\":\"PostalAddress\",\"streetAddress\":\"16620 Oakmont Ave\",\"addressLocality\":\"Gaithersburg\",\"addressRegion\":\"MD\",\"postalCode\":\"20877-2007\",\"addressCountry\":\"US\"},\"geo\":{\"@type\":\"GeoCoordinates\",\"latitude\":39.1434,\"longitude\":-77.2014},\"priceRange\":\"$$\"}]}\u003c\/script\u003e","products":[{"product_id":"zwd4040g-comet-pump-4-0-gpm-4000-psi","title":"Zwd4040g 4.0GPM 4000PSI 1\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eZwd4040g 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":37763753246920,"sku":"5062","price":477.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/05062_cd47254e-1cdb-45ae-bf32-d8d99b25d078.webp?v=1774231313"},{"product_id":"zwd4030g-comet-pump-4-0-gpm-3200-psi","title":"Zwd4035g 4GPM 3500PSI 1\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eZwd4035g 4GPM 3500PSI 1\" Gas Flange is a professional-grade pump parts from GP rated at 3500 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 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 3500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRated GPM:\u003c\/strong\u003e 4\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\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\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 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":37763761176776,"sku":"4777","price":551.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/4777_5cd558b9-2872-4c05-9846-b8f4d0d0300d.jpg?v=1784853380"},{"product_id":"zwd3540g-comet-pump-3-5-gpm-4000-psi","title":"Zwd3540g 3.5GPM 4000PSI 1\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eZwd3540g 3.5GPM 4000PSI 1\" Gas Flange 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 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 3.5\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\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 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":37763777495240,"sku":"5064","price":773.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/5064_2c25525b-9650-49bb-8f6b-adb65f5dada1.jpg?v=1784853380"},{"product_id":"zwd3030g-comet-pump-3-0-gpm-3000-psi","title":"Zwd3030g 3GPM 3200PSI 3\/4\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eZwd3030g 3GPM 3200PSI 3\/4\" Gas Flange is a professional-grade pump parts from GP rated at 3200 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 3200\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\u003e3200 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":37763828318408,"sku":"4778","price":543.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/04778_6e617846-2d45-42ab-9f1f-9ed637bfa13a.webp?v=1774231321"},{"product_id":"zwd3530g-comet-pump-3-5-gpm-3000-psi","title":"Zwd3535g 3.5GPM 3500PSI 1\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eZwd3535g 3.5GPM 3500PSI 1\" Gas Flange is a professional-grade pump parts from GP rated at 3500 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 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 3500\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 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\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\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 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":37763844931784,"sku":"4782","price":553.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/4782_b5862336-ad19-4c3b-be88-0b85659018ec.jpg?v=1784853379"},{"product_id":"axd3030g-comet-pump-3-0-gpm-3000-psi","title":"Awd3030g-k 3GPM 3000PSI 1\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eAwd3030g-k 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":37763875143880,"sku":"1313","price":598.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/1313_01_web_2942728c-fe76-417d-8df4-3d0cff82cc67.png?v=1774233289"},{"product_id":"axd3025g-comet-pump-3-0-gpm-2500-psi","title":"Axd3025g 3GPM 2500PSI 3\/4\" Gas Flange","description":"\u003cp\u003e\u003cstrong\u003eAxd3025g 3GPM 2500PSI 3\/4\" Gas Flange 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 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 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 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\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 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":37763904078024,"sku":"5923","price":538.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/05923_779a8800-371b-41fb-8799-8c4a2a375953.webp?v=1774233281"},{"product_id":"zwd4040g-k-4-0gpm-4000psi-1-gas-shaft-w-unloader","title":"Zwd4040g-k 4.0GPM 4000PSI 1\" Gas Shaft W\/Unloader","description":"\u003cp\u003e\u003cstrong\u003eZwd4040g-k 4.0GPM 4000PSI 1\" Gas Shaft W\/Unloader is a professional-grade pressure unloaders 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\u003eUnloader for GP systems.\u003c\/p\u003e\n\u003cp\u003eThe unloader valve controls what happens when you release the trigger gun. It diverts water flow back to the pump inlet (or to a bypass) so the pump is not dead-heading against a closed system. Without a working unloader, the pump builds pressure with nowhere for the water to go. That kills pumps fast.\u003c\/p\u003e\n\u003cp\u003eA bad unloader also causes pressure spikes, surging, and difficulty pulling the trigger. If your pressure washer surges between high and low pressure, or if the trigger gun is hard to squeeze, the unloader needs attention.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePSI Rating:\u003c\/strong\u003e Up to 4000 PSI\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGPM Rating:\u003c\/strong\u003e Up to 4.0 GPM\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP unloaders\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Unloader\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAdjustable:\u003c\/strong\u003e Set your operating pressure by turning the adjustment knob\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnloader\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eUnloader valves must match your pump's PSI and GPM ratings. An undersized unloader cannot handle the flow. An oversized unloader will not regulate properly.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMatch the PSI rating to your pump's maximum PSI or lower\u003c\/li\u003e \u003cli\u003eMatch the GPM rating to your pump's flow rate\u003c\/li\u003e \u003cli\u003eMatch the inlet and outlet port sizes to your plumbing\u003c\/li\u003e \u003cli\u003eSome unloaders are pump-specific (built into the pump head). Others are external and inline.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which unloader fits your pump, call us with your pump model number. We will match the correct unloader.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePump protection\u003c\/strong\u003e by preventing dead-head conditions when the trigger is released\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure adjustment\u003c\/strong\u003e to set your working pressure for different surfaces\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReplacing a failed unloader\u003c\/strong\u003e on a machine that is surging or spiking pressure\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUpgrading\u003c\/strong\u003e from a lower-rated unloader to match a pump upgrade\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eInstall the unloader on the pump discharge port, before the high-pressure hose. Use Teflon tape on all threaded connections.\u003c\/p\u003e\n\u003cp\u003eTo adjust operating pressure, turn the adjustment knob clockwise to increase pressure and counterclockwise to decrease. Make small adjustments and test with a pressure gauge. Do not exceed the pump's maximum rated pressure.\u003c\/p\u003e\n\u003cp\u003eCommon unloader problems and fixes:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePressure surging:\u003c\/strong\u003e Worn piston or seat inside the unloader. Replace the repair kit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHard trigger pull:\u003c\/strong\u003e Unloader set too high or piston stuck. Adjust pressure down or rebuild.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNo pressure:\u003c\/strong\u003e Unloader stuck in bypass. Check for debris, rebuild, or replace.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure spikes:\u003c\/strong\u003e Bad spring or worn seat. Replace the spring and seat.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhy is my pressure washer surging?\u003c\/h3\u003e\n\u003cp\u003eSurging is almost always an unloader problem. The unloader is not transitioning cleanly between bypass and working modes. Try adjusting the unloader first. If adjusting does not fix it, rebuild the unloader with a repair kit. Replace worn springs, pistons, and seats.\u003c\/p\u003e\n\u003ch3\u003eHow do I set the right pressure on my unloader?\u003c\/h3\u003e\n\u003cp\u003eStart with the adjustment backed all the way out (lowest pressure). Squeeze the trigger gun and slowly turn the adjustment clockwise until you reach your target pressure. Use a pressure gauge at the gun to read the actual working pressure. Do not exceed your pump's rated PSI.\u003c\/p\u003e\n\u003ch3\u003eWhen should I replace vs rebuild my unloader?\u003c\/h3\u003e\n\u003cp\u003eIf the unloader body is cracked, corroded, or the threads are damaged, replace the whole unit. If it is just surging or leaking internally, a rebuild kit with new seals, springs, and a piston usually fixes it for a fraction of the cost of a new unloader.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer unloaders 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 unloaders 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 Pressure Unloaders 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\u003eCheck out our unloader valves, repair kits, springs, and bypass fittings. We also carry pressure gauges and relief valves for your system.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-unloaders\"\u003eBrowse Pressure Unloaders\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":45032493449416,"sku":"6621","price":834.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/6621_a8d5f405-4c0f-4842-8c26-660d70ab3ed2.jpg?v=1784853380"},{"product_id":"zwd3035g-k-3-0gpm-3500psi-1-gas-flange-w-unloader","title":"Zwd3035g-k 3.0GPM 3500PSI 1\" Gas Flange W\/Unloader","description":"\u003cp\u003e\u003cstrong\u003eZwd3035g-k 3.0GPM 3500PSI 1\" Gas Flange W\/Unloader is a professional-grade pressure unloaders from GP rated at 3500 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\u003eUnloader for GP systems.\u003c\/p\u003e\n\u003cp\u003eThe unloader valve controls what happens when you release the trigger gun. It diverts water flow back to the pump inlet (or to a bypass) so the pump is not dead-heading against a closed system. Without a working unloader, the pump builds pressure with nowhere for the water to go. That kills pumps fast.\u003c\/p\u003e\n\u003cp\u003eA bad unloader also causes pressure spikes, surging, and difficulty pulling the trigger. If your pressure washer surges between high and low pressure, or if the trigger gun is hard to squeeze, the unloader needs attention.\u003c\/p\u003e \u003ch2\u003eKey Features and Specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePSI Rating:\u003c\/strong\u003e Up to 3500 PSI\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGPM Rating:\u003c\/strong\u003e Up to 3.0 GPM\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GP unloaders\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Unloader\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAdjustable:\u003c\/strong\u003e Set your operating pressure by turning the adjustment knob\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e\n\u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnloader\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax PSI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax GPM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0 GPM\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eUnloader valves must match your pump's PSI and GPM ratings. An undersized unloader cannot handle the flow. An oversized unloader will not regulate properly.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMatch the PSI rating to your pump's maximum PSI or lower\u003c\/li\u003e \u003cli\u003eMatch the GPM rating to your pump's flow rate\u003c\/li\u003e \u003cli\u003eMatch the inlet and outlet port sizes to your plumbing\u003c\/li\u003e \u003cli\u003eSome unloaders are pump-specific (built into the pump head). Others are external and inline.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not sure which unloader fits your pump, call us with your pump model number. We will match the correct unloader.\u003c\/p\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePump protection\u003c\/strong\u003e by preventing dead-head conditions when the trigger is released\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure adjustment\u003c\/strong\u003e to set your working pressure for different surfaces\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReplacing a failed unloader\u003c\/strong\u003e on a machine that is surging or spiking pressure\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUpgrading\u003c\/strong\u003e from a lower-rated unloader to match a pump upgrade\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and Maintenance Tips\u003c\/h2\u003e\n\u003cp\u003eInstall the unloader on the pump discharge port, before the high-pressure hose. Use Teflon tape on all threaded connections.\u003c\/p\u003e\n\u003cp\u003eTo adjust operating pressure, turn the adjustment knob clockwise to increase pressure and counterclockwise to decrease. Make small adjustments and test with a pressure gauge. Do not exceed the pump's maximum rated pressure.\u003c\/p\u003e\n\u003cp\u003eCommon unloader problems and fixes:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePressure surging:\u003c\/strong\u003e Worn piston or seat inside the unloader. Replace the repair kit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHard trigger pull:\u003c\/strong\u003e Unloader set too high or piston stuck. Adjust pressure down or rebuild.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNo pressure:\u003c\/strong\u003e Unloader stuck in bypass. Check for debris, rebuild, or replace.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePressure spikes:\u003c\/strong\u003e Bad spring or worn seat. Replace the spring and seat.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhy is my pressure washer surging?\u003c\/h3\u003e\n\u003cp\u003eSurging is almost always an unloader problem. The unloader is not transitioning cleanly between bypass and working modes. Try adjusting the unloader first. If adjusting does not fix it, rebuild the unloader with a repair kit. Replace worn springs, pistons, and seats.\u003c\/p\u003e\n\u003ch3\u003eHow do I set the right pressure on my unloader?\u003c\/h3\u003e\n\u003cp\u003eStart with the adjustment backed all the way out (lowest pressure). Squeeze the trigger gun and slowly turn the adjustment clockwise until you reach your target pressure. Use a pressure gauge at the gun to read the actual working pressure. Do not exceed your pump's rated PSI.\u003c\/p\u003e\n\u003ch3\u003eWhen should I replace vs rebuild my unloader?\u003c\/h3\u003e\n\u003cp\u003eIf the unloader body is cracked, corroded, or the threads are damaged, replace the whole unit. If it is just surging or leaking internally, a rebuild kit with new seals, springs, and a piston usually fixes it for a fraction of the cost of a new unloader.\u003c\/p\u003e\n\u003ch3\u003eWhere can I buy pressure washer unloaders 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 unloaders 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 Pressure Unloaders 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\u003eCheck out our unloader valves, repair kits, springs, and bypass fittings. We also carry pressure gauges and relief valves for your system.\u003c\/p\u003e\u003ch2\u003eRelated Parts \u0026amp; Equipment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pressure-unloaders\"\u003eBrowse Pressure Unloaders\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":45032493613256,"sku":"6763","price":589.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06763-2_5e85e313-84b6-43fc-b7ba-f6386ad015f6.webp?v=1774231319"},{"product_id":"zwd3035g-3-0gpm-3500psi-1-gas-shaft","title":"Zwd3035g 3.0GPM 3500PSI 1\" Gas Shaft","description":"\u003cp\u003e\u003cstrong\u003eZwd3035g 3.0GPM 3500PSI 1\" Gas Shaft is a professional-grade pump parts from GP rated at 3500 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 3500\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\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\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":45032493646024,"sku":"6820","price":560.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/06820_60826943-a04f-410b-8dd6-e87cdd001ca2.webp?v=1774231320"},{"product_id":"tw-8030s-8-7gpm-3000psi-1450rpm-24mm-shaft","title":"TW 8030S 8.7GPM 3000PSI 1450RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eTW 8030S 8.7GPM 3000PSI 1450RPM 24mm SHAFT is a professional-grade pump parts from GP rated at 3000 PSI and 8.7 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 8.7\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\u003e8.7 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":45032497053896,"sku":"2954","price":1374.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/2954_26054e38-5709-4070-9fd3-91932b694d83.jpg?v=1784853352"},{"product_id":"tw-5050s-5gpm-5000psi-1450rpm-24mm-shaft","title":"TW 5050S 5GPM 5000PSI 1450RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eTW 5050S 5GPM 5000PSI 1450RPM 24mm SHAFT is a professional-grade pump parts from GP rated at 5000 PSI and 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\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 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":45032497086664,"sku":"3000","price":1563.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/03000_99415335-3c20-4e85-9d55-be5491567a04.webp?v=1774231494"},{"product_id":"rw-5535s-5-5gpm-3500psi-1450rpm-24mm-shaft","title":"RW 5535S 5.5GPM 3500PSI 1450RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eRW 5535S 5.5GPM 3500PSI 1450RPM 24mm SHAFT is a professional-grade pump parts from GP rated at 3500 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 3500\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\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\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":45032503935176,"sku":"5127","price":655.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/5127_01_web_204480e3-948b-40f9-bcc6-95b1a3ee7ea4.png?v=1774231800"},{"product_id":"rw-4040s-4-0gpm-4000psi-1450-rpm-24mm-shaft","title":"RW 4040S 4.0GPM 4000PSI 1450 RPM 24mm SHAFT","description":"\u003cp\u003e\u003cstrong\u003eRW 4040S 4.0GPM 4000PSI 1450 RPM 24mm 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":45032503967944,"sku":"5522","price":673.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/05522-2_f3025d8b-92f5-404e-a5ac-7464eab59d66.webp?v=1775142928"},{"product_id":"5019-0065-00-oil-seal-kit-zwd-series","title":"5019.0065.00 Oil Seal Kit Zwd Series","description":"\u003cp\u003e\u003cstrong\u003e5019.0065.00 Oil Seal Kit Zwd Series 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 kit for triplex plunger pumps.\u003c\/p\u003e\n\u003cp\u003eTriplex plunger pumps are the heart of every pressure washer. When a seal 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\u003eType:\u003c\/strong\u003e Seal 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\u003eSeal Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis seal kit 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 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":45032561377480,"sku":"5260","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/5260_d0d08dbd-13ba-4a6b-a485-d236630ac846.jpg?v=1784864788"},{"product_id":"10001-01607-valve-kit-lw-zw-fw-hw-sw","title":"10001-01607 Valve Kit Lw,zw,fw,hw,sw","description":"\u003cp\u003e\u003cstrong\u003e10001-01607 Valve Kit Lw,zw,fw,hw,sw 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 kit for triplex plunger 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\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\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis valve kit 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 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":45032575893704,"sku":"1946","price":107.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/files\/1946_01_web_10b22eae-35af-4b44-9bd3-4980d232004d.png?v=1774233930"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4827\/4376\/collections\/comet-pumps.png?v=1783353685","url":"https:\/\/sunbritesupplymd.com\/collections\/comet-pumps.oembed","provider":"Sun Brite Supply","version":"1.0","type":"link"}