This is a A-RK163-20 Piston with Rings (.020") PN: RK163-20Main Description As Following : A-RK163-20 Piston with Rings (.020") P.N: RK163-20 A-RK163-20 Piston with Rings (.020") P.N: RK163-20 Replaces: D5NN6110T FORD , Crossed From: BIFF4022D , , BIFF4032D , , PRKF402-020 , , 161161 , Found in Section & Models : Engine Parts > 401 CID Diesel, Ford / New Holland TRACTOR: TW10 (1979-1982), Ford / New Holland TRACTOR: TW5 (<1986), Ford / New Holland TRACTOR: 8000 (10/1972-7/1976), Ford / New Holland TRACTOR: 8200 (10/1972-7/1976), Ford / New Holland TRACTOR: 8600 (10/1972-7/1976), Ford / New Holland TRACTOR: 8700 (8/1976-1978) Associated Items : New Also A-FO-O-TW10TW20, A-FO-O-TW1020, A-FO-P-80009000, A-FO-S-TW10, A-SMFO201, A-FO-O-TW5TW15, A-FO-O-8000, A-FO-P-80009000, A-SMFO201, A-FO-P-80009000, A-FO-O-8600, A-FO-P-80009000, A-SMFO201, A-FO-O-87009700, A-FO-P-80009000, A-FO-S-87009700, A-SMFO201 And : High Quality Afternaket Shipped from Both US and Canada