This is a A-PR183 Piston Rings PN: PR183Main Description As Following : A-PR183 Rings, Piston P.N: PR183 This Is A 1 Cylinder Set. Works For Both 3 & 4 Ring Pistons (3 Ring Pistons You Will Have An Extra Compression Ring Left Over).Dim A (1): Thickness: Top Groove - 0.094"Dim B (2): Thickness: 2nd Groove - 0.094"Dim C (3): Thickness: 3rd Groove - 0.325" Crossed From: CFPN6149BG , Found in Section & Models : Engine Parts > 192 CID Gas, Ford / New Holland TRACTOR: 4000 (1965-3/1968), Engine Parts > 201 CID Gas, Ford / New Holland TRACTOR: 4000 (4/1968-1975), Ford / New Holland TRACTOR: 4600 (1975-1981), Engine Parts > 256 CID Gas, Ford / New Holland TRACTOR: 5000 (6/1968-1975), Ford / New Holland TRACTOR: 6600 (1975-1981) Associated Items : New Also A-FO-O-MAJOR4000, A-FO-O-2-5000, A-FO-O-2000, A-FO-O-24000IND, A-FO-O-24000RC, A-FO-P-ACCESS, A-FO-P-MAJOR, A-FO-P-234000, A-FO-P-4CYLALL, A-FO-S-DATA, A-FO-S-ENG158, A-FO-S-SELECTO, A-FO-S-2000, A-MNL18259, A-SMFO20, A-SMFO31, A-FO-O-2600UP, A-FO-P-2600, A-FRM-FO-MID, A-SMFO41 And : This Is A 1 Cylinder Set. Works For Both 3 & 4 Ring Pistons (3 Ring Pistons You Will Have An Extra
Compression Ring Left Over). Dim A (1): Thickness: Top Groove - 0.094" Dim B (2): Thickness: 2nd Groove - 0.094" Dim C (3): Thickness: 3rd Groove - 0.325"