This is a A-PR128 Piston Rings PN: PR128Main Description As Following : A-PR128 Rings, Piston P.N: PR128 Set of 3 rings. Crossed From: PRS169 , , PRS177 , Found in Section & Models : Engine Parts > C221 CID, Case-IH INDUSTRIAL/CONSTRUCTION: 2606 (SN <35093), Case-IH INDUSTRIAL/CONSTRUCTION: 2606 (SN 35094>), Case-IH TRACTOR: 460 (SN <35093), Case-IH TRACTOR: 460 (SN 35094>), Case-IH TRACTOR: 606 (SN <35093), Case-IH TRACTOR: 606 (SN 35094>), Engine Parts > C263 CID, Case-IH INDUSTRIAL/CONSTRUCTION: 2656, Case-IH INDUSTRIAL/CONSTRUCTION: 2706, Case-IH TRACTOR: 656, Case-IH TRACTOR: 706 Associated Items : New Also A-IH-O-2606, A-IH-O-3121, A-IH-P-3082, A-IH-P-6062606, A-SMIH25, A-IH-P-6562656, A-IH-S-ENG460ETC, A-IH-S-ENG6CYLG, A-IH-S-HYDROTRN, A-IH-S-656CHASIS, A-IH-O-706, A-IH-O-706EARLY, A-IH-P-706, A-IH-S-ENGD155, A-IH-S-ENG460ETC, A-IH-S-ENG6CYLG, A-SMIH32, A-IH-C-MUSCLES, A-IH-O-340I3PT, A-IH-O-3402PT And : Set of 3 rings.