[Top Performance] This replacement pump is based on industry engineering, fit 2500 - 3300 PSI / 3.0 GPM, and engine at 5.5 8hp (160 270cc) pressure washers. Compatible with most brand power washers, Simpson, AR, Powerstroke, Blackmax, Husky, Excell, Briggs and Stratton, Campbell Hausfeld, Canpump and more. NOTE: Only fits HORIZONTAL 3/4'' SHAFT gas Engine.[Upgrades 400% Working Hours]The service life of the Triplex Plunger Pump is Max 500 hrs, it's more than 400% of the normal pressure washer pump. The Triplex Plunger design makes the pump run more stable, with less vibration, and provides continuous power output for your cleaning work. [Easy Start] Comes with all accessories you need, pump can be installed in 10 minutes: 4 flange bolts, Soap Hose, 5 color spray nozzle tips, M22 Female to 3/8 quick connector and keys.