This is a A-AT315780 Trans Disc: 10", organic, solid PN: AT315780Main Description As Following : A-AT315780 Trans Disc: 10", organic, solid P.N: AT315780 Replaces: AM3791TSpline Count: 10Spline Diameter: 1.375" Crossed From: AM3791T JOHN DEERE Found in Section & Models : Clutch Parts > Single Clutch, John Deere TRACTOR: 40, John Deere TRACTOR: 435, Clutch Parts > Steering Clutch, John Deere INDUSTRIAL/CONSTRUCTION: 430, John Deere TRACTOR: 420 Associated Items : New Also A-JD-O-OMT62558, A-JD-O-OMT65558, A-FRM-JD, A-JD-O-OMT2455, A-JD-P-PC862, A-JD-S-SM2013, A-JD-S-SM2024, A-JD-S-SM2029, A-JD-S-SM2045, A-JD-S-SM2050, A-SMJD201, A-FRM-JD, A-JD-O-OMT20, A-JD-O-OMT33756, A-JD-O-OMT351156, A-JD-O-OMT37756, A-JD-P-PC505, A-JD-S-SM2019, A-JD-S-SM2024, A-JD-S-SM2029 And : Replaces: AM3791T Spline Count: 10 Spline Diameter: 1.375"