10 Best pressure washer pump kits of 2026

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1

Clicked 2 times in the last month

AAA
AAA 3700 PSI 2.5 GPM Replacement Triplex Pressure Washer Pump Kit for SIMPSON Gas Power Washer Pumps, 3/4" Shaft, Horizontal Engine Fit, PowerBoost (90037)
Main highlights

Key Features
Easy-to-install, supports 3700 PSI at 2.5 GPM, PowerBoost for efficient cleaning, adjustable power, sight glass for easy oil monitoring.

Ideal Use Cases
Perfect for washing walls, sidewalks, vehicles with compatible gas pressure washers. Ideal for tasks requiring both high and adjustable lower pressure.

Customer Reviews
Most praised for its ease of installation, noticeable efficiency in cleaning performance, and the convenient oil level visibility feature.
Key specs
- maximum flow rate:2.5 Gallons Per Minute
- material:Brass
- maximum pressure:3700 PSI
- style:3700 PSI at 2.5 GPM
- dimensions:12L x 9W x 4H
9.9

Exceptional

Our Rating

9.5
Easy installation

8.0
worth the money

8.0
Long life
How do we rank?

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Value for Money

2

VEVOR
VEVOR Pressure Washer Pump, 4400 PSI, 4.0 GPM, 1" Shaft Horizontal Triplex Plunger, Replacement Power Washer Pumps Kit, Parts Washer Pump, Compatible with Simpson, Honda, Homelite, Troybilt etc.
Main highlights

High-Performance & Compatibility
Delivers 4400 PSI and 4 GPM, with wide compatibility across several gas pressure washer models, featuring an easy oil level inspection.

Ideal Use Cases
Perfect for cleaning walls, sidewalks, vehicles, and construction sites, enhancing daily and professional cleaning efficiency with its high-pressure capabilities.

Customer Reviews Highlight
Most praised for its durability and easy installation process, users appreciate the pump`s high-pressure performance and compatibility.
Key specs
- maximum flow rate:4 GPM
- material:Forged brass
- maximum pressure:4400 PSI
- style:Residential pump
- dimensions:15.4 x 11.8 x 10.2 inches
9.7

Exceptional

Our Rating
3

WOJET
WOJET Pressure Washer Pump, 3/4" Shaft, 3400PSI 2.5GPM, Horizontal Power Washer Pump With Anti-seize, Self-Priming, Replacement Pressure Washer Pump Kit for Dewalt, Simpson, Craftsman, Honda, Generac
Main highlights

Reliable Performance and Compatibility
Fits 3/4 shaft engines, max pressure 3400 PSI, 2.5 GPM.

Versatile Outdoor Cleaning
Ideal for car washes, driveway cleaning, and fence maintenance.

Convenient Pressure Adjustment
Hand-twist unloader praised for easy pressure control.
Key specs
- maximum flow rate:2.5 Gallons Per Minute
- material:Aluminum, Brass
- maximum pressure:3400 PSI
- style:power washer accessories
- dimensions:9L x 8W x 7.5H
9.6

Exceptional

Our Rating
4

SIMPSON
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)
Main highlights

Key Features and Benefits
Easy-to-install, supports 3300 PSI at 2.4 GPM, maintenance-free, corrosion-resistant, includes Thermal Relief Valve for extended durability.

Ideal Use Cases
Perfect for washing walls, fences, sidewalks, vehicles; compatible with many gas pressure washers and pressure washer hoses.

Customer Reviews Highlight
Most praised for its durability and ease of installation, significantly extending the life of existing pressure washers.
Key specs
- maximum flow rate:2.4 Gallons Per Minute
- material:Aluminum
- maximum pressure:3300 PSI
- style:Horizontal
- dimensions:7.5L x 5W x 8.5H
9.5

Excellent

Our Rating

9.7
Easy installation

9.1
worth the money

8.0
Long life
5

YAMATIC
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

25% Off
Main highlights

Powerful Performance and Durability
3400 PSI and 2.5 GPM ensures robust cleaning tasks with extended 150-hour endurance.

Versatile Residential Applications
Ideal for cleaning houses, fences, sidewalks, vehicles, and pools.

Highly Rated Customer Satisfaction
Praised for easy installation, strong pressure, and reliable customer service.
9.4

Excellent

Our Rating

9.9
Easy installation

9.5
worth the money

8.7
Long life
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6

Hourleey

Hourleey 3/4" Shaft Horizontal Pressure Washer Pump, 3400PSI 2.5GPM, Replacement Pump for Power Washer, Power Washer Pump for Gas Washer, Compatible with Simpson, Ryobi, Honda
9.3

Excellent

Our Rating

9.9
worth the money

9.9
Easy installation
7

Hourleey
Hourleey 7/8" Shaft Vertical Pressure Washer Pump, 3400PSI 2.5GPM, Replacement Pump for Power Washer Kit, Compatible with Honda, Simpson, RYOBI, Briggs & Stratton, Subaru, Craftsman
Main highlights

High Pressure Performance
Supports up to 3400 PSI and 2.5 GPM for efficient cleaning.

Versatile Compatibility
Fits various gas-powered washers, ideal for Simpson, Ryobi, Honda.

Ease of Installation
Quick setup with included components, praised for easy installation.
Key specs
- maximum flow rate:2.5 Gallons Per Minute
- material:Aluminum
- maximum pressure:3400 PSI
- style:7/8 Shaft Vertical
- dimensions:6L x 10W x 24H
9.2

Excellent

Our Rating

9.9
Easy installation

9.9
worth the money
8

Gledewen

RMV25G30D PKG Pressure Washer Pump Kit 2.5 GPM, 3000 PSI, 3/4“ Horizontal Pressure Washering Pumps with EZ-Start Valve, Detergent Tube, Aluminum…
9.0

Excellent

Our Rating
9

SIMPSON
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

12% Off
Main highlights

Key Features and Benefits
Easy-to-install, fits many gas pressure washers, maintenance-free, corrosion-resistant, with TRV for overheating protection.

Ideal Use Cases
Perfect for washing walls, fences, sidewalks, vehicles with support for 3400 PSI at 2.5 GPM and standard SAE bolt pattern compatibility.

Customer Reviews Highlight
Most praised for its durability and the significant cost savings over buying a new pressure washer, along with its easy installation process.
Key specs
- maximum flow rate:2.5 Gallons Per Minute
- material:Brass, steel
- maximum pressure:3400 PSI
- style:Horizontal
- dimensions:8.5L x 8.5W x 8H
8.7

Very Good

Our Rating

9.7
Easy installation

8.9
worth the money

8.0
Long life
10

VEVOR

VEVOR Pressure Washer Pump, 3/4" Shaft Horizontal, 2500-3400PSI, 2.5 GPM, Replacement Power Washer Pumps, Parts Washer Pump, Compatible with Honda, Simpson, RYOBI, Briggs & Stratton, Subaru, Craftsman
8.6

Very Good

Our Rating

8.2
Easy installation

8.0
worth the money

10 Best pressure washer pump kits of 2026

1

AAA 3700 PSI 2.5 GPM Replacement Triplex Pressure Washer Pump Kit for SIMPSON Gas Power Washer Pumps, 3/4" Shaft, Horizontal Engine Fit, PowerBoost (90037)

9.5

8.0

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

VEVOR Pressure Washer Pump, 4400 PSI, 4.0 GPM, 1" Shaft Horizontal Triplex Plunger, Replacement Power Washer Pumps Kit, Parts Washer Pump, Compatible with Simpson, Honda, Homelite, Troybilt etc.

3

WOJET Pressure Washer Pump, 3/4" Shaft, 3400PSI 2.5GPM, Horizontal Power Washer Pump With Anti-seize, Self-Priming, Replacement Pressure Washer Pump Kit for Dewalt, Simpson, Craftsman, Honda, Generac

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)

9.7

9.1

8.0

5

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

9.9

9.5

8.7

6

Hourleey 3/4" Shaft Horizontal Pressure Washer Pump, 3400PSI 2.5GPM, Replacement Pump for Power Washer, Power Washer Pump for Gas Washer, Compatible with Simpson, Ryobi, Honda

9.9

9.9

7

Hourleey 7/8" Shaft Vertical Pressure Washer Pump, 3400PSI 2.5GPM, Replacement Pump for Power Washer Kit, Compatible with Honda, Simpson, RYOBI, Briggs & Stratton, Subaru, Craftsman

9.9

9.9

8

RMV25G30D PKG Pressure Washer Pump Kit 2.5 GPM, 3000 PSI, 3/4“ Horizontal Pressure Washering Pumps with EZ-Start Valve, Detergent Tube, Aluminum…

9

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

9.7

8.9

8.0

10

VEVOR Pressure Washer Pump, 3/4" Shaft Horizontal, 2500-3400PSI, 2.5 GPM, Replacement Power Washer Pumps, Parts Washer Pump, Compatible with Honda, Simpson, RYOBI, Briggs & Stratton, Subaru, Craftsman

8.2

8.0

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