... This is cylinder head and block for Cummins 4BT, 6BT, 6CT and 6L engine. Cummins Engine PartsRemarks: DESCRIPTION PART NO.CYLINDER ... HEAD FOR 6CT3973493CYLINDER BLOCK FOR 6CT39393131) We manage in auto engine valve, piston, piston ring, piston pin, cylinder liner, ... pump, lubricating oil pump, engine valve seat, engine valve oil seal, engine valve guide, fuel transfer pump, and so on. We can develop ...