Piston A3908179 of Cummins 4B3.9-G1(SO10962) Generator Engine NO. PART NUMBER PART NAME NO. PART NUMBER PART NAME 1 A3908179ZZ PISTON,ENGINE 5 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 A3908179, Piston Ring C3904531, C3918315, C3932520, Piston Pin C4991283 engine parts, as well as 4B3.9-G1 genuine Cummins …