Cylinder Block 3939313 Parts Number 3939313 Parts Name Cylinder Block Brand Cummins Genuine Parts Models DCEC Cummins C serial Tags: 6C, Cummins, Cylinder Block, DCEC, Genuine Parts| Related Posts PUMP,FUEL INJECTION 3969547 Over Size Main Bearing Kit 3945918 Bushing Con Rod 3970951 Water Pump 3966841 Thermostat 5337942