Cummins Engines, Filter, Compressor manufacturer / supplier in China, offering Original Qsb5.9 Engine Piston 5332597 5273438 5405793 for Excavator, Original Qsb6.7 Diesel Engine Intake Air Heater 3972343 4948124 3970001, Excellent 320d Excavator C6 C6.4 Diesel Fuel Injector 3264700 326-4700 32f61-00062 and so on.