This is a A-EAF6621D Pump, Oil w/ Gaskets PN: EAF6621DMain Description As Following : A-EAF6621D Pump, Oil w/ Gaskets P.N: EAF6621D For applications with slotted drive shaft. Replaces: 35A55 FORD Found in Section & Models : Engine Parts > Engine Oil Pump and Related, Ford / New Holland TRACTOR: NAA (01/01/53 - 12/31/54), Ford / New Holland TRACTOR: 2000 (<1964), Ford / New Holland TRACTOR: 500 SERIES, Ford / New Holland TRACTOR: 600 SERIES, Ford / New Holland TRACTOR: 700 SERIES Associated Items : New Also A-FO-O-NAA, A-FO-P-ACCESS, A-FO-P-SHERPS, A-FO-P-1400SHER, A-FO-S-NAA, A-FO-S-SHER-TRAN, A-SMFO19, 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 And : For applications with slotted drive shaft.