Pressure washer replacement pump boosts cleaning power up to 4000 PSI and 4.0 GPM to cut through dirt faster on driveways, decks, siding, and equipment. Built for horizontal-shaft engines with a 1" (25.4 mm) shaft and standard SAE bolt pattern, it installs as a practical swap when your original pump loses pressure. An integrated pressure regulator helps you tune output for different jobs, while the oil sight glass makes routine checks quick without teardown.

Designed for cold-water use, this triplex plunger pump is a solid replacement choice when you want stable pressure, consistent flow, and fewer interruptions mid-job. Corrosion-resistant metal construction supports frequent outdoor use, while common garden-hose and quick-connect fittings keep setup familiar for most pressure washer owners. Verify engine orientation, horsepower range, and connector sizes before ordering to avoid returns and downtime. Grab yours today and get your washer back to steady, high-pressure performance.