This is a A-SBA320400021 Trans Disc, 7.125" PN: SBA320400021Main Description As Following : A-SBA320400021 Trans Disc, 7.125" P.N: SBA320400021 Spline Count: 10Spline Diameter: .9375" Crossed From: SW08011 , Found in Section & Models : Clutch Parts > Single Clutch, Case-IH TRACTOR, COMPACT: D25 (SN HBA0001008->), Case-IH TRACTOR, COMPACT: D29 (SN HBA0001008->), Ford / New Holland TRACTOR, COMPACT: 1300 Associated Items : New Also A-FO-S-13001500, A-SMFO44 And : Spline Count: 10 Spline Diameter: .9375"