P.m.r. Xmv3g30d-f24-vrt3-250 W/Bypass & Therm Reli
P.m.r. Xmv3g30d-f24-vrt3-250 W/Bypass & Therm Reli
- Order Policies
- Item# 5321
Couldn't load pickup availability
P.m.r. Xmv3g30d-f24-vrt3-250 W/Bypass & Therm Reli is a professional-grade pump parts from PA. In stock and ships same day from Sun Brite Supply in Gaithersburg, Maryland.
Product Overview
Replacement pump component for PA pumps.
Triplex 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.
Most 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.
Key Features and Specifications
- Fits: PA pumps
- Type: Pump Part
- Application: Triplex plunger pump rebuild and repair
| Part Type | Pump Part |
| Fits | PA pumps |
Compatibility
This part fits PA 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.
Common pump brands used in professional pressure washers:
- General Pump, popular in commercial trailer rigs and skid systems
- Cat Pumps, premium pumps known for long service life
- AR (Annovi Reverberi), Italian-made pumps in mid-range and commercial units
- Comet, good value for residential and light commercial washers
- Giant / Interpump, heavy duty industrial and ultra-high pressure pumps
If you are not sure which pump you have, call us with the model number and we will match the right parts.
Applications and Use Cases
Pump 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:
- Loss of pressure, usually caused by worn valves, seals, or packing
- Water leaking from the pump, typically worn seals or packing
- Pulsating pressure, usually a stuck or broken check valve
- Oil leaking from the crankcase, worn oil seals
- Seasonal rebuild, replacing wear items before the busy season starts
Installation and Maintenance Tips
Before 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.
When 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.
Use 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.
After 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.
Frequently Asked Questions
What are the signs that my pump parts need replacement?
Loss 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.
Should I rebuild my pump or buy a new one?
In 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.
How often should I rebuild my pressure washer pump?
It 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.
Where can I buy pressure washer pump parts near Gaithersburg, Maryland?
Sun 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.
Before You Order: What to Check
Getting the right part the first time saves you a return trip and more downtime. Before you add this to your cart, check these things:
- Model number: Find the model and serial number on your equipment data plate. Write it down before you order.
- Port sizes and thread types: Measure your connections. A 3/8 inch fitting will not thread into a 1/4 inch port no matter how hard you try.
- Pressure and flow ratings: Make sure the replacement part is rated for your system's PSI and GPM. Under-rated parts fail fast.
- Old part comparison: If possible, remove the old part and compare it side by side with the product photos and specs listed here.
- Still not sure? 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.
Why Buy Your Pump Parts from Sun Brite Supply?
Sun 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.
Need 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.
Local 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.
We 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.
Most 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.
Shop 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.
We 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.