This is a A-PR160 Piston Rings PN: PR160Main Description As Following : A-PR160 Rings, Piston P.N: PR160 Dim A (1): Top Ring; .093"Dim B (2): 2nd Ring: .093"Dim C (3): 3rd (Oil) Ring: .187" Crossed From: PRS165 , Found in Section & Models : Engine Parts > C135 CID, Case-IH TRACTOR: 330 (SN <100500), Case-IH TRACTOR: 340 (SN <100500) Associated Items : New Also A-FRM-ACCACO, A-IH-O-330UTIL, A-IH-P-330UTIL, A-IH-S-BRAKEREP, A-IH-S-TOOLSLATE, A-MAG-S-317, A-SMIH201, A-FO-P-SHERF9BH, A-IH-C-MUSCLES, A-IH-O-CUBPM, A-IH-O-340ETCPM, A-IH-O-340I, A-IH-O-340I3PT, A-IH-O-3402PT, A-IH-O-340340UT, A-IH-P-3082, A-IH-P-340FAU, A-IH-S-BRAKEREP, A-IH-S-CARBSPEC, A-IH-S-ELECDIA And : Dim A (1): Top Ring; .093" Dim B (2): 2nd Ring: .093" Dim C (3): 3rd (Oil) Ring: .187"