Komatsu S6D108(PC300-5)-OEM6221-51-1101 Oil pump 1.made of casting alloy ... range:Piston, Piston Pin, Liner, Crankshaft, Gasket Kit, Connecting Rod, Bearing Bush, Camshaft, Cylinder Block, Cylinder Head and etc.4.We have taken ... , you can contact us at any time. Komatsu S6D108(PC300-5)-OEM6221-51-1101 Oil pump