This is a A-D0NN7A539A Disc Assembly, Torque Limiter, 8" PN: D0NN7A539AMain Description As Following : A-D0NN7A539A Disc Assembly, Torque Limiter, 8" P.N: D0NN7A539A Replaces: C5NN7A539B, C7NN7A539BSpline Count: 20Spline Diameter: 1.000" Crossed From: C5NN7A539B FORD / NEW HOLLAND , C7NN7A539B FORD / NEW HOLLAND Found in Section & Models : Clutch Parts > Select-O-Speed, Ford / New Holland TRACTOR: 5000, Ford / New Holland TRACTOR: 5100, Ford / New Holland TRACTOR: 5190, Ford / New Holland TRACTOR: 5200, Ford / New Holland TRACTOR: 5340 Associated Items : New Also A-FO-O-2-5000, A-FO-O-2000, A-FO-P-MAJOR, A-FO-P-234000, A-FO-S-DATA, A-FO-S-ENG158, A-FO-S-2000, A-MNL18259, A-SMFO201, A-SMFO42, A-FO-P-234000, A-FO-P-234000, A-FO-O-2-5000, A-FO-P-234000, A-FO-S-2000 And : Replaces: C5NN7A539B, C7NN7A539B Spline Count: 20 Spline Diameter: 1.000"