Water Pump 3966841 Parts Number 3966841 Parts Name Water Pump Brand Cummins Genuine Parts Cummins Models Cummins/DCEC Cummins C serial Tags: 6C, 6L, Cummins, DCEC, Genuine Parts, water pump| Related Posts PUMP,FUEL INJECTION 3969547 Over Size Main Bearing Kit 3945918 Aftercooler 4938507 Water Pump 3051408 Thermostat – 3076489