This pump replaced the original on a 14-year old Honda GX270-powered 9hp washer. Easy bolt-on installation and the pump came pre-filled with oil. Performance has been excellent. Since the engine and washer frame were still in good condition this was a reasonable option to keep from trashing major working components and buying a new PW system. It also generates an extra 400 psi compared to the old unserviceable pump. SLE was able to get the pump to me in less than a week with standard shipping.