Pressure Washer Pump, 7/8 in Vertical Shaft, 3100 PSI, 2.5 GPM

Pressure washer replacement pump restores strong, consistent water pressure so you can get back to fast outdoor cleaning without replacing the whole machine. Built for 7/8 in vertical shaft engines with a standard SAE bolt pattern, it delivers up to 3100 PSI and 2.5 GPM for driveways, siding, fences, and vehicles. Cast aluminum construction supports reliable performance, while the maintenance-free crankcase eliminates oil changes.

When your washer loses pressure, surges, or won’t build consistent output, a replacement pump is often the fastest fix. This kit is designed for quick swap-in compatibility with common vertical-shaft gas engine configurations and includes the accessories needed to dial in spray patterns and keep tips clear. Confirm your shaft diameter and inlet/outlet connections before ordering to ensure a smooth install. Grab yours today and put your pressure washer back to work.