TOOLCY Pressure Washer Pump 3800-4000 PSI Max 3.8 GPM, 1

TOOLCY Pressure Washer Pump 3800-4000 PSI Max 3.8 GPM, 1 inch Shaft Horizontal Triplex Plunger Power Washer Pump Replacement, with 5 Nozzle Tips & M22-14mm Adapter
- 【PROLONG THE LIFE OF YOUR PRESSURE WASHER】: Premium quality triplex plunger pressure washer pump replacement is designed for gas power washers with horizontal 1 inch shaft engines 10-15HP or 270-420cc, easy to install. Compatible with Honda GX340 GX390 GX270, DeWalt, Simpson, AR and more.
- 【ADJUSTABLE PRESSURE】: There is a RED knob to allow you to conveniently decrease or increase the power for different tasks, max up to 4000 PSI and 3.8 GPM (recommend working pressure at 3400 PSI & 3400 RPM for longer life). Meet your residential and light commercial pressure washing demands for driveway, decks, fences, sidewalks, vehicles, and so on.
- 【OEM QUALITY POWER WASHER PUMP】: Fully anodized black crankcase with solid brass pump head can greatly improve the strength and extend the service life of pressure washer pump. The triplex plunger design makes the pump run more smoothly, powerful and durable. Advanced sight glass and oil seal technology eliminates the need for a dipstick.
- 【SPECIFICATION】: Pump flange complies with industry SAE standard mounting dimension, 1 inch shaft hole. With standard 3/4 inch garden hose inlet and 3/8 inch quick connect high pressure hose output.
- 【COMPATIBILITY CHECK】: To ensure proper compatibility, please verify that the engine orientation, PSI rating, GPM, engine shaft diameter, and the current pump's inlet and outlet connections match accordingly.
SKU: | B0CC1LLGW7 |
Weight: | 20.6 pounds |
Dimensions: | 13.94 x 13.82 x 7.91 inches |
Batteries Required: | No |
Manufacture: | TOOLCY |
Product Description


Max Pressure (psi/bar) | 4000 psi / 280 bar |
Max Flow Rate | 3.8 gpm |
Shaft | 1 inch |
Orientation | Horizontal |
Engine Horsepower | 9-15 hp |
Rated RPM | 3400 rpm |
Connector Inlet | 3/4”NH Garden Hose |
Connector Outlet | 3/8” Quick Connect |
Renew Your Power Washer

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![]() Flexible Pressure Hose | ![]() Power Washer Hose 1/4 in | ![]() 3/8 in Power Washer Hose | ![]() High Pressure Washer Gun | ![]() Foam Cannon and Gun Kit | ![]() Adjustable Power Wash Gun | |
Max Working Pressure | 3300 PSI | 3300 PSI | 4000 PSI | 5000 PSI | 5000 PSI | 5000 PSI |
Max Water Flow | 2.5 GPM | 2.5 GPM | 5 GPM | 10.5 GPM | 10.5 GPM | 10.5 GPM |
Connection Type | M22-14mm & 3/8″ QC | M22-14mm | 3/8″ QC | 3/8″ QC & M22-14mm | 3/8″ QC & M22-14mm | 3/8″ QC & M22-14mm |
Swivel | ✘ | ✘ | ✔ | ✔ | ✔ | ✔ |
Commercial Grade | ✘ | ✘ | ✔ | ✔ | ✔ | ✔ |