This is a A-RK150-40 Piston with Rings (.040") PN: RK150-40Main Description As Following : A-RK150-40 Piston with Rings (.040") P.N: RK150-40 Size: .040Stroke: 3.8" Replaces: D8NN6110HA FORD , Crossed From: BIFF1584G , , BIFF1754G , , PRKF1584G , , 161183 , Found in Section & Models : Engine Parts > 158 & 175 CID Gas, Ford / New Holland TRACTOR: 2600 (1975-1981), Ford / New Holland TRACTOR: 3600 (1975-1981), Engine Parts > 158 CID Gas, Ford / New Holland TRACTOR: 2000 (1965-1975), Ford / New Holland TRACTOR: 3000 (1965-1975) Associated Items : New Also A-DA-P-ALDR, A-FO-O-2-5000, A-FO-O-2000, A-FO-O-24000IND, A-FO-O-24000RC, A-FO-P-ACCESS, A-FO-P-SHERF9BH, 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-FO-S-600700, A-MNL18259, A-SMFO20, A-SMFO201, A-SMFO31, A-FO-O-2600UP, A-FO-P-2600 And : Size: .040 Stroke: 3.8"