Pressure Washer Pump, 19 mm Horizontal Shaft, 3400 PSI

Pressure washer replacement pump restores strong cleaning power without replacing your entire machine—delivering up to 3400 PSI and 2.5 GPM for fast driveway, siding, fence, and vehicle washing. Built for horizontal-shaft gas pressure washers with a standard SAE bolt pattern, this rear-outlet pump kit is designed for quick swaps and dependable sealing. The hardened plunger and one-piece pump head help reduce wear and limit water/oil leaks over time.

Keep your pressure washer working at full capability with a direct-fit pump replacement that prioritizes easy installation and consistent performance. Ideal when your current pump loses pressure, leaks, or won’t prime reliably—swap the pump instead of retiring the whole unit. With common garden-hose and M22 connections plus a 3/4" (19 mm) shaft setup, it’s a practical upgrade for many horizontal-shaft washers. Grab yours today and get back to cleaning without downtime.