Cummins 6BT Piston Ring 3802421   Type: Piston Ring Size: standard Car Make: cummins 6BT truck OE NO.: 3802421 Place of Origin: Hubei, China (Mainland) Brand Name: cummins Model Number: 6BT 3802421 Warranty: 6 Months color: black, gray engine type: diesel engine engine model: cummins 6BT engine MOQ: 1 Warranty: 6 months