This is a A-OGS401A Gasket Set, Overhaul with Seals PN: OGS401AMain Description As Following : A-OGS401A Gasket Set, Overhaul with Seals P.N: OGS401A for use w/ 1/2" head bolts & 9/16" head bolts Replaces: OGS401-12 FORD , OGS401-916 FORD , Crossed From: FS4817 , , FS6893 , , PCHS4817 , , PCHS4818 , Found in Section & Models : Engine Parts > Gaskets, Ford / New Holland TRACTOR: TW10 (1979-1982), Ford / New Holland TRACTOR: TW20 (1979-1982), Ford / New Holland TRACTOR: TW30 (1979-1982), Ford / New Holland TRACTOR: TW5 (<1986), Ford / New Holland TRACTOR: 8000 (01/01/68 - 07/31/76 401 CID Diesel), 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), Ford / New Holland TRACTOR: 9000 (6/1972-7/1976), Ford / New Holland TRACTOR: 9200 (6/1972-7/1976), Ford / New Holland TRACTOR: 9600 (6/1972-7/1976), Ford / New Holland TRACTOR: 9700 (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-TW1020, A-FO-P-80009000, A-FO-S-TW10, A-MNL18266, A-SMFO201, 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 And : for use w/ 1/2" head bolts & 9/16" head bolts