The Craftsman 704667 Pressure Washer Pump 7/8"-Shaft 2800 PSI helps restore powerful cleaning performance for compatible pressure washers. It works by connecting to the engine's 7/8-inch shaft and generating high-pressure water flow up to 2800 PSI, making it effective for cleaning driveways, patios, vehicles, and outdoor surfaces. Made to replace a worn or damaged pressure washer pump... https://www.wholetoolbox.com/craftsman-704667-pressure-washer-pump-7-8-shaft-2800-psi/704667.html