Part Number: UP-B3370 (Piston ring)Part Number: UPC20062-326 (Piston ring)Part Number: V14167-38 (Piston ring)Part Number: V44724-136 (Piston ring)Part Number: X78-4-25 (Piston ring)Part Number: XR10984 (Piston ring)Part Number: YJ14021A (Piston ring)Part Number: YPC74108002761 (Piston ring)