... china 4. apply to 6CT cummins engine air compressor 39725311.Cummins engine air compressor2.Dongfeng engine air compressor3.39725314.DCEC brand all cummins parts ... machinery usded parts,marine parts and so on2Cylinder Block ,Cylinder Head, overhaul gasket3Oil Filter,Fuel Filter, Oil Cooler Core...4Piston,Piston ...