Looking for the best OEM replacement pumps? We offer high-performance, durable pumps with features like adjustable unloaders and ceramic-coated pistons to boost your pressure washer’s efficiency and ease of use.
Revitalize your pressure washer with the best OEM replacement pumps on the market. These pumps are designed for peak performance and durability, ensuring your equipment runs like new. Whether you’re tackling tough cleaning jobs or routine maintenance, we’ve got you covered.
Discover top-tier pumps crafted with precision and reliability in mind. From adjustable unloaders to ceramic-coated pistons, each feature is tailored to enhance your cleaning experience. Enjoy hassle-free installation and long-lasting performance with every use.
Join countless users who have transformed their pressure washers with our trusted replacements. With expert technical support and easy-to-follow guides, you’ll find the perfect pump for your needs. Dive in and explore the best options to power up your cleaning game!
List of Top 10 OEM Replacement Pumps
| Image | Title | Best For | Price |
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DW3635 Triplex Plunger Pump OEM Replacement Pump 3600 PSI @ 3.5 GPM from AAA |
This DW3635 Triplex Plunger Pump is perfect for anyone needing a reliable, high-pressure pump. Whether you’re a DIY enthusiast or a professional, this OEM replacement pump delivers 3600 PSI at 3.5 GPM, ensuring powerful performance for your projects. |
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AAA Model DW3635 Triplex Plunger Pump OEM Replacement Pump 3600 PSI @ 2.5GPM |
This AAA Model DW3635 Triplex Plunger Pump is perfect for anyone who needs a strong, reliable pump. It works great for people who want an easy-to-use and long-lasting pump that fits most gas engines. If you want top quality and help from experts in the USA, this pump is made for you. |
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MUTURQ 3/4″ Shaft Horizontal Pressure Washer Pump, 2600-3000 PSI, 2.5 GPM, OEM Replacement Pump for Honda GC160,309515003,308418007,020241 and More |
This product is perfect for gas-powered pressure washer owners needing a durable, easy-to-install replacement pump. It works with Honda, Simpson, Generac, and other brands, offering OEM-level quality, lifetime oil, and overheat protection for long-lasting use. |
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OEM Technologies 3300 PSI 2.4 GPM Replacement Pressure Washer Pump Kit, Horizontal Axial Cam Replacement Pump for Gas Pressure Washer, 3/4″ Shaft, Includes Hardware and Siphon Tube (90028) |
This product is perfect for DIYers or homeowners with gas-powered pressure washers needing a reliable, cost-saving fix. Replace your old pump instead of buying a whole new machine—easy installation, standard connections, and built-in durability features like a thermal valve keep your washer running longer. |
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530017 3700 PSI AAA Triplex Plunger Pump OEM Replacement Pump |
This 530017 3700 PSI AAA Triplex Plunger Pump is perfect for anyone needing areliable and durable replacement pump. It’s ideal for gas engines and fits most horizontal 3/4 inch shaft engines. |
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OEM Technologies 90029 Replacement Pressure Washer Pump Kit, 3400 PSI, 2.5 GPM, 3/4″ Shaft, Includes Hardware and Siphon Tube, for Residential and Industrial Gas Powered Machines |
This pressure washer pump kit is perfect for homeowners and professionals who need to restore their gas-powered pressure washer’s cleaning power. It’s easy to install and works with many machines, making it ideal for anyone looking to save money by replacing their pump instead of buying a new washer. |
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MUTURQ 3/4″ Shaft Horizontal Pressure Washer Pump, Easy Adjust 2800-3400 PSI, 2.5 GPM, OEM Replacement Pump for Simpson, Honda GC 160 GC 190, Homelite, AR rmv 2.5g30 |
This pump is perfect for anyone who needs a quick, easy upgrade for their gas pressure washer. If you want to clean cars, sidewalks, or fences with strong, adjustable pressure without fuss, this pump fits the bill. It’s great for users of Simpson, Honda, Homelite, and similar brands who want a durable, maintenance-free solution that installs in minutes. |
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4681EA2001T OEM Washer Drain Pump Motor Replacement for Kenmore & LG – AP5328388 4681EA1007G 4681EA1007D – Fits WM2101HW WM3270CW WM3431HS WM3770HVA Washing Machines |
This OEM quality drain pump suits LG and Kenmore washer owners facing drainage issues, leaks, or noise. Easy installation and a 365-day guarantee make it ideal for DIY repairs, saving time and labor costs. |
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YAMATIC 3/4″ Shaft Horizontal Pressure Washer Pump 3400 PSI 2.5 GPM Replacement Pump for Power Washer Compatible with Homelite, Troybilt, Simpson, Karcher, Honda GC160 GC190, AR RMV 2.5G30 |
This YAMATIC pressure washer pump is perfect for homeowners who want to revive their old power washer instead of buying a new one. It’s easy to install and works with many popular brands, making it ideal for cleaning walls, sidewalks, and vehicles. |
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TOOLCY 7/8″ Shaft Vertical Pressure Washer Pump – Rear Inlet/Outlet Max 3100 PSI @ 2.5 GPM OEM & Power Washer Pump for Gas Washer, More Replacement for Simpson, Ryobi, Honda etc |
This TOOLCY 7/8″ Shaft Vertical Pressure Washer Pump is perfect for anyone who needs a strong, reliable pump for their gas pressure washer. It works great for users with 7/8″ shaft and rear inlet/outlet washers from brands like Ryobi, Honda, Simpson, and more. If you want a pump that is easy to install, runs longer, and cleans well, this is the one for you. |
Detailed Reviews
Discover the top 10 OEM replacement pumps in our expert-curated guide. Each pump is thoroughly reviewed for performance, durability, and value, ensuring you find the perfect fit for your needs. Whether you prioritize power, ease of use, or affordability, this guide has you covered. Dive in to find the best OEM replacement pump and revitalize your equipment with confidence.
1. DW3635 Triplex Plunger Pump OEM Replacement Pump 3600 PSI @ 3.5 GPM from AAA

Revitalize your pressure washer with the DW3635 Triplex Plunger Pump. This OEM replacement is built for peak performance, delivering a robust 3600 PSI at 3.5 GPM. It’s designed for durability and reliability, ensuring your equipment runs like new.
Crafted in Italy, this pump features an adjustable unloader for easy control. Its ceramic-coated pistons and dual ball bearings guarantee extended life and smooth operation.
The DW3635 fits most horizontal 24mm / 1-inch shaft engines. Enjoy top-tier USA-based technical support for a worry-free experience.
| Pros | Cons |
|---|---|
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Perfect For:
This DW3635 Triplex Plunger Pump is perfect for anyone needing a reliable, high-pressure pump. Whether you’re a DIY enthusiast or a professional, this OEM replacement pump delivers 3600 PSI at 3.5 GPM, ensuring powerful performance for your projects.
Ready to Purchase?
2. AAA Model DW3635 Triplex Plunger Pump OEM Replacement Pump 3600 PSI @ 2.5GPM

Get powerful performance with the AAA Model DW3635 Triplex Plunger Pump. It delivers 3600 PSI and works at up to 3.5 gallons per minute.
This pump has a fully adjustable unloader system that is easy to control. It comes with dual oversized radial ball bearings for long life. The pistons are ceramic coated for extra strength.
The pump fits most 24mm gas engines with a hollow shaft. It is made in Italy and sold by a trusted USA company. You get top technical support with over 50 years of experience.
| Pros | Cons |
|---|---|
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Perfect For:
This AAA Model DW3635 Triplex Plunger Pump is perfect for anyone who needs a strong, reliable pump. It works great for people who want an easy-to-use and long-lasting pump that fits most gas engines. If you want top quality and help from experts in the USA, this pump is made for you.
Ready to Purchase?
3. MUTURQ 3/4″ Shaft Horizontal Pressure Washer Pump, 2600-3000 PSI, 2.5 GPM, OEM Replacement Pump for Honda GC160,309515003,308418007,020241 and More

Revive your pressure washer with the MUTURQ 3/4″ Shaft Horizontal Pressure Washer Pump! This premium quality pump is built to last, boasting an impressive 120-hour lifetime and corrosion-resistant aluminum construction. It’s ready to tackle tough jobs, supporting up to 3000 PSI and 2.5 GPM.
Forget messy oil changes! This pump is maintenance-free, arriving pre-filled with oil for a lifetime of use. Installation is a breeze, with everything you need included to get your pressure washer running again in under 10 minutes.
It’s a perfect replacement for many popular brands. Enjoy extended durability with its thermal relief valve. Get yours and power up your cleaning!
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for gas-powered pressure washer owners needing a durable, easy-to-install replacement pump. It works with Honda, Simpson, Generac, and other brands, offering OEM-level quality, lifetime oil, and overheat protection for long-lasting use.
Ready to Purchase?
4. OEM Technologies 3300 PSI 2.4 GPM Replacement Pressure Washer Pump Kit, Horizontal Axial Cam Replacement Pump for Gas Pressure Washer, 3/4″ Shaft, Includes Hardware and Siphon Tube (90028)

Replace your pressure washer pump to save money and avoid buying a new machine. This kit works for gas-powered washers needing 3300 PSI at 2.4 GPM to clean surfaces like walls, vehicles, and sidewalks.
It fits many gas washers with horizontal engines and SAE bolt patterns. Check shaft size and connections to ensure a match. Garden hose inlet and M22 outlet work with common hoses like Simpson MorFlex models. The thermal relief valve prevents overheating during use.
No oil changes needed thanks to a sealed crankcase. Anodized aluminum resists rust for long-term use with your washer’s accessories.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for DIYers or homeowners with gas-powered pressure washers needing a reliable, cost-saving fix. Replace your old pump instead of buying a whole new machine—easy installation, standard connections, and built-in durability features like a thermal valve keep your washer running longer.
Ready to Purchase?
5. 530017 3700 PSI AAA Triplex Plunger Pump OEM Replacement Pump

The 530017 AAA Triplex Plunger Pump is a powerful 3700 PSI OEM replacement pump. It’s designed for high performance and long-lasting use.
This pump features dual oversized radial ball bearings for better wear resistance. It also has precision ceramic-coated pistons for extended seal life.
Made in Southwest Michigan, USA, this pump ensures reliability and durability. Plus, it comes with top-tier USA-based technical support for 50+ years.
| Pros | Cons |
|---|---|
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Perfect For:
This 530017 3700 PSI AAA Triplex Plunger Pump is perfect for anyone needing areliable and durable replacement pump. It’s ideal for gas engines and fits most horizontal 3/4 inch shaft engines.
Ready to Purchase?
6. OEM Technologies 90029 Replacement Pressure Washer Pump Kit, 3400 PSI, 2.5 GPM, 3/4″ Shaft, Includes Hardware and Siphon Tube, for Residential and Industrial Gas Powered Machines

The OEM Technologies 90029 Pump Kit brings powerful cleaning back to your pressure washer. It delivers up to 3400 PSI at 2.5 GPM, perfect for residential and industrial use.
Easy to install, it fits horizontal engines with a 3/4″ shaft. Works with Honda GX190 or GX200 and many gas pressure washers.
Built to last with corrosion-resistant aluminum and stainless steel pistons. Features a maintenance-free crankcase and thermal relief valve to prevent overheating.
| Pros | Cons |
|---|---|
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Perfect For:
This pressure washer pump kit is perfect for homeowners and professionals who need to restore their gas-powered pressure washer’s cleaning power. It’s easy to install and works with many machines, making it ideal for anyone looking to save money by replacing their pump instead of buying a new washer.
Ready to Purchase?
7. MUTURQ 3/4″ Shaft Horizontal Pressure Washer Pump, Easy Adjust 2800-3400 PSI, 2.5 GPM, OEM Replacement Pump for Simpson, Honda GC 160 GC 190, Homelite, AR rmv 2.5g30

Upgrade your pressure washer with the MUTURQ 3/4″ Shaft Horizontal Pressure Washer Pump. It delivers a strong 2800-3400 PSI at 2.5 GPM to clean cars, sidewalks, and fences with ease. This pump fits popular brands like Simpson, Honda, and Homelite.
Adjusting pressure is simple with the easy twist unloader valve—no wrench needed. It protects your surfaces by preventing sudden pressure spikes. Plus, the pump is made from die-cast aluminum and comes pre-filled with oil for a maintenance-free experience.
Installation is quick with all parts included. A safety valve keeps the pump cool and extends its life. Get your pressure washer running like new in minutes!
| Pros | Cons |
|---|---|
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Perfect For:
This pump is perfect for anyone who needs a quick, easy upgrade for their gas pressure washer. If you want to clean cars, sidewalks, or fences with strong, adjustable pressure without fuss, this pump fits the bill. It’s great for users of Simpson, Honda, Homelite, and similar brands who want a durable, maintenance-free solution that installs in minutes.
Ready to Purchase?
8. 4681EA2001T OEM Washer Drain Pump Motor Replacement for Kenmore & LG – AP5328388 4681EA1007G 4681EA1007D – Fits WM2101HW WM3270CW WM3431HS WM3770HVA Washing Machines

Is your washing machine not draining properly or making unusual noises? This OEM 4681EA2001T Washer Drain Pump Motor Replacement is the perfect solution! It’s designed to efficiently remove water, ensuring your washer runs smoothly and quietly.
This high-quality drain pump comes with a detachable filter housing for easy cleaning and maintenance. It’s built with premium materials and has undergone rigorous factory inspections to guarantee its performance. Plus, it’s backed by a 365-day after-sales service for your peace of mind.
It fits most Kenmore and LG washing machines. Installation is quick and easy, typically taking only 30 to 60 minutes. Save money on repair costs with this reliable replacement part.
| Pros | Cons |
|---|---|
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Perfect For:
This OEM quality drain pump suits LG and Kenmore washer owners facing drainage issues, leaks, or noise. Easy installation and a 365-day guarantee make it ideal for DIY repairs, saving time and labor costs.
Ready to Purchase?
9. YAMATIC 3/4″ Shaft Horizontal Pressure Washer Pump 3400 PSI 2.5 GPM Replacement Pump for Power Washer Compatible with Homelite, Troybilt, Simpson, Karcher, Honda GC160 GC190, AR RMV 2.5G30

Revive your power washer with the YAMATIC 3/4″ Shaft Horizontal Pressure Washer Pump. This high-performance pump delivers up to 3400 PSI at 2.5 GPM, making it ideal for various cleaning tasks.
Easy to install, it fits many gas pressure washers with horizontal engines. The pump is compatible with popular brands like Honda, Simpson, and Karcher. It’s a cost-effective solution to extend the life of your engine.
With TRV protection and an adjustable unloader, this pump ensures longer service life and efficient performance. Pre-filled with oil, it’s ready to use and provides easy pull-back starting.
| Pros | Cons |
|---|---|
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Perfect For:
This YAMATIC pressure washer pump is perfect for homeowners who want to revive their old power washer instead of buying a new one. It’s easy to install and works with many popular brands, making it ideal for cleaning walls, sidewalks, and vehicles.
Ready to Purchase?
10. TOOLCY 7/8″ Shaft Vertical Pressure Washer Pump – Rear Inlet/Outlet Max 3100 PSI @ 2.5 GPM OEM & Power Washer Pump for Gas Washer, More Replacement for Simpson, Ryobi, Honda etc

The TOOLCY 7/8″ Shaft Vertical Pressure Washer Pump is built for power and ease. It works with many popular brands like Ryobi, Honda, and Simpson. This pump handles up to 3100 PSI at 2.5 GPM, making tough cleaning jobs simple.
It fits washers with a 7/8″ shaft and a rear inlet. You get three nozzles for different spray types. The pump runs cool and lasts long thanks to smart design.
No oil changes needed here. The pump is ready to go with pre-filled oil and a double seal system. It’s a strong, low-maintenance choice for your cleaning needs.
| Pros | Cons |
|---|---|
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Perfect For:
This TOOLCY 7/8″ Shaft Vertical Pressure Washer Pump is perfect for anyone who needs a strong, reliable pump for their gas pressure washer. It works great for users with 7/8″ shaft and rear inlet/outlet washers from brands like Ryobi, Honda, Simpson, and more. If you want a pump that is easy to install, runs longer, and cleans well, this is the one for you.
Ready to Purchase?
Buying Guide
Revitalize your pressure washer with the best OEM replacement pumps. These pumps are designed for peak performance and durability, ensuring your equipment runs like new. Whether you’re tackling tough cleaning jobs or routine maintenance, we’ve got you covered.
Choosing the right OEM replacement pump can transform your cleaning experience. With top-tier pumps crafted for precision and reliability, you’ll enjoy hassle-free installation and long-lasting performance. Here’s what to consider when buying:
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Pressure and Flow Rate:
Match the pump’s PSI (pressure) and GPM (flow rate) to your needs. Higher PSI tackles tough jobs, while GPM affects cleaning speed. -
Compatibility:
Ensure the pump fits your pressure washer’s engine type, shaft size, and connections. Check for brands like Honda, Simpson, or Ryobi. -
Material and Build:
Look for corrosion-resistant materials like aluminum or stainless steel. Ceramic-coated pistons and dual ball bearings enhance durability. -
Maintenance:
Choose pumps with maintenance-free features like pre-filled oil or sealed crankcases to save time and effort. -
Ease of Installation:
Opt for pumps with included hardware and easy-to-follow guides for a quick setup. -
Technical Support:
Select brands offering expert technical support for peace of mind and assistance when needed. -
Additional Features:
Consider pumps with adjustable unloaders, thermal relief valves, or safety features for better control and protection.
With these factors in mind, you’ll find the perfect OEM replacement pump to power up your cleaning game!