Shopping Cart

Your cart is empty.

Your cart is empty.

Pressure Washer Pump, 3/4' Shaft Horizontal Triplex Plunger, 3700 PSI, 2.5 GPM, Replacement Power Washer Pumps Kit, Compatible with Most Pressure Washer Brands, More Than 500 Hours of use time

Free shipping on orders over $29.99

$151.99

$ 70 .99 $70.99

In Stock

About this item

  • Highly Efficient Electric Pressure Washer: With a max pressure of 3700 PSI and 2.5 GPM flow rate, it's ideal for home improvement projects and professional services, delivering optimized performance between 3000-3700 PSI.
  • Enhanced Durability with Quality Parts: Features a rust-proof solid brass head, enhanced plunger hardness, and a forged brass pump head. It's endurance tested for over 500 hours, ensuring long-lasting use.
  • Pressure Washer Compatible: Our pressure washer accessories are compatible with 196-240 cc engines and fit a 3/4" shaft only, making it a suitable choice for most pressure washer brands.
  • Easy Maintenance and Installation: This model kit comes with a maintenance-free crankcase, pre-filled engine oil, and an easy oil level indicator. The complete kit includes installation accessories.
  • Versatile Use and Replacement: Ideal for use with gas pressure washers like Dewalt and Karcher. Can replace Simpson MorFlex models 40224, 40225, 40226, and fits 3/4" shaft only.



Product Description

p0500

Industrial grade Triplex pump

The PW-ON is one of our industrial pumps. Compatible with ¾″ horizontal shafts, this triplex pump makes for an excellent upgrade over axial pumps

compatible with the same shaft size. Apart from the superior triplex design, a detachable unloader valve makes replacements and upgrades easy

Shaft diameter: 3/4”

Pre-sealed oil

500+ hours

Easy start design - easy pull recoil start without releasing the built-up pressure inside the pump before starting the engine

P0500

Pump features

The PW-ON 3600 psi triplex pump features a built-on adjustable unloader valve, chemical injector

and thermal release valve. This triplex pumps includes, detergent hose and filter, mounting bolts, 4 pre set nozzle sprays, quick connect and new key.

Threaded M22 Pump Outlet & 3/4" Garden Hose Inlet: Comes with both the QC and for an adapter to M22 for the high pressure/outlet connections

Durable Components: Forged brass manifold lasts longer than cheaper models. Die-cast, anodized aluminum oil-bath crankcase

Direct Drive Horizontal Triplex Plunger Replacement Pump: Fits many brands and models up to 3600 PSI and 3.0 GPM. Save money by replacing the pump instead of buying a new power washer

3/4" Shaft Horizontal Pressure Washer Pump

Max Pressure (psi/bar) 2500 - 3600 psi
Max Flow Rate (gallon/min) 3.0 GPM
Type Triplex
Manifold Forged Brass
Crankcase Aluminum Alloy
Bearing Double Bearing
Self priming No
Rated RPM 3400
Engine Type Horizontal
Inlet Connector ¾” NH Garden Hose
Outlet Connector M22x1.5-14mm
Unit Weight (lb) 6.0 pounds
Includes Detergent Tube, 0°, 25°, 40° & detergent spray nozzles, D8 flat pads x 3, D8 spring washers x 3, Bolts (UNF5/16-24 x 1) x 3, Shaft key (4.78 x 4.78 x 40)

Tom
Reviewed in the United States on April 13, 2025
Received open box item with oversized bolts and shaft key. Inconsistent listing description. Chinese product sold by "US" company. I ended up installing pump with my existing hardware and pump seems to work fine so far.
Recommended Products

$76.95

$ 33 .99 $33.99

4.9
Select Option

$122.99

$ 55 .99 $55.99

4.3
Select Option