Pressure Washer Pump, 22mm Vertical Shaft, 2600 PSI 2.5 GPM

Pressure washer pump replacement restores strong cleaning power fast, so you can get back to washing driveways, siding, fences, and vehicles without replacing the whole machine. Built for vertical-shaft gas pressure washers, this rear-outlet pump uses a standard SAE bolt pattern for broad fitment. A reinforced plunger and one-piece pump head help reduce wear and support reliable sealing for water and oil.

• Fits vertical 7/8" (22 mm) shaft, rear outlet pressure washers using a standard SAE bolt pattern


• Delivers up to 2.5 GPM flow for efficient rinsing on concrete, decks, patios, and cars


• Helps prevent leaks with a one-piece pump head, metal shaft sleeve, and wear-resistant plunger


• Includes detergent hose, 3 bolts, flat pads, spring washers, and shaft key for a quick swap


• Starts easier with no pressure-release step required before engine start

Replace a worn pump to extend the life of your pressure washer and avoid the cost and downtime of a full replacement. Designed for common 196–230cc residential gas engines, this kit installs in minutes with basic tools and matches typical garden-hose inlet and M22 spray-hose outlet connections. Confirm shaft size, outlet orientation, and connector threads before ordering for the cleanest fit. Grab yours today and get your washer back on the job.

• Engine orientation: Vertical


• Shaft diameter: 7/8" (22.225 mm)


• Inlet connector: 3/4" NH garden hose


• Outlet connector: M22 x 1.5 (14 mm)


• Inlet/outlet orientation: Rear


• Max flow: 2.5 GPM


• Working output: 2600 PSI


• Max pressure: 3400 PSI


• Recommended engine power: 6.5–7 HP (196–230cc)


• Product size: 7.1" x 7" (18 x 17.5 cm)


• Weight: 5.7 lb (2.6 kg)