... parts 3,made in China and Improt 4,improt package piston air compressor: 1 Original Cummins engine and parts2 Part number:all ... Filter water filter Oil Cooler Core4Piston,Piston Pin, Piston Cooling Nozzle,Piston Ring5Oil Pump,Water Pump,fuel transfer pump.fuel injection pump injector6Camshaft, Crankshaft, Main Bearing, ... inquiry, we will bring you the most professional service . piston air compressor