This is a A-PR180 Piston Rings PN: PR180Main Description As Following : A-PR180 Rings, Piston P.N: PR180 Dim A (1): 4 RingsDim B (2): Top Two Rings- .093"Dim C (3): Bottom Two Rings- .186"Dim D (4): No Chromew/ 4 rings Found in Section & Models : Engine Parts > 120 CID Gas, Ford / New Holland TRACTOR: 2N, Ford / New Holland TRACTOR: 8N, Ford / New Holland TRACTOR: 9N Associated Items : New Also A-DA-O-101LDR, A-FO-O-9N, A-FO-OP-SH54C900, A-FO-P-ACCESS, A-FO-P-2N8N9N, A-FO-S-SHER-TRAN, A-FO-S-2N8N9N, A-FO-SOP-SHER54A, A-FRM-FOMM, A-MH-S-TETOSB, A-SMFO4, A-FO-O-8N, A-FO-P-ACCESS, A-FO-P-2N8N9N, A-FO-S-SHER-TRAN, A-FO-S-2N8N9N, A-FO-SOP-SHER54A, A-FRM-FOMM, A-MH-S-TETOSB, A-SMFO4 And : Dim A (1): 4 Rings Dim B (2): Top Two Rings- .093" Dim C (3): Bottom Two Rings- .186" Dim D (4): No Chrome w/ 4 rings