Pressure Washer Pump 3300 PSI 3.0 GPM, 7/8-Inch Vertical Kit

Pressure washer pump replacement restores strong water pressure and steady flow so you can get back to fast, consistent cleaning. Built for 7/8" (22.2 mm) vertical-shaft, rear-inlet gas engines, it delivers up to 3300 PSI and 3.0 GPM for tackling driveways, siding, fences, and equipment. Cast-aluminum construction resists corrosion, while a maintenance-free crankcase reduces upkeep and downtime.

• Delivers up to 3300 PSI and 3.0 GPM for quicker rinsing, stripping, and blasting jobs.


• Fits 7/8" vertical shaft, rear water inlet engines (196–230cc / 6–8 HP) with standard SAE bolt pattern.


• Includes 5 spray nozzles plus siphon tube, cleaning pin, shaft keys, washers, and bolt/nut hardware.


• Reduces maintenance with a sealed, maintenance-free crankcase—no routine oil changes required.


• Handles varied tasks from vehicles to patios using M22 outlet and 3/4" garden hose inlet connections.

When your washer loses pressure, a pump swap is often the fastest fix. This replacement pressure washer pump kit is designed for common vertical-shaft, rear-inlet engine setups, helping you avoid the cost and hassle of replacing the whole unit. Use the recommended working pressure of 2600 PSI to support longer service life and smoother operation. Verify shaft size, engine orientation, and inlet direction before ordering. Grab yours today and get back to cleaning at full speed.

• Primary material: Aluminum


• Engine orientation: Vertical


• Shaft diameter: 7/8" (22.2 mm)


• Max pressure / recommended: 3300 PSI / 2600 PSI


• Max flow rate: 3.0 GPM (11 L/min)


• Compatible engine power: 6–8 HP (196–230cc)


• Inlet connector: 3/4" NH garden hose


• Outlet connector: M22 x 1.5 (14 mm)


• Matched water inlet direction: Rear water inlet


• Net weight: 6.42 lb (2.91 kg)