WOB-L And Daphragm Large Pump Service Kits Cylinder O-Rings, Connector Tube O-Rings, Head Gasket, Foam Filter, Top End Screws, Loctite®, Valves, Valve Keepers, Valve Screws, Valve Restraint, .44" Stroke Connecting Rod Assembly 2617, 2627, 2637 (44 Stroke)