Piston C3908179 of Cummins 4BT3.9-C80(SO11564) Construction Engine NO. PART NUMBER PART NAME NO. PART NUMBER PART NAME 1 C3908179 PISTON,ENGINE 4 C3920691 RING,RETAINING 2 C3904531 RING,COMPRESSION PISTON 6 C3932520 RING,OIL PISTON 3 C3918315 RING,COMPRESSION PISTON 12 C4991283 PIN,PISTON Remarks: (1) We can provide Piston C3908179, Piston Pin C4991283, Retaining Ring C3920691 engine parts, as well as 4BT3.9-C80 genuine Cummins engine. …