This is a A-1670234M91 Trans Disc: 12", feramic, solid PN: 1670234M91Main Description As Following : A-1670234M91 Trans Disc: 12", feramic, solid P.N: 1670234M91 Spline Count: 10Spline Diameter: 1.125" Replaces: 1670234-RF MASSEY FERGUSON , 5341FE MASSEY FERGUSON Found in Section & Models : Clutch Parts > Single Clutch, Massey Ferguson TRACTOR: 1080, Massey Ferguson TRACTOR: 1085, Clutch Parts > Split Torque Clutch, Massey Ferguson TRACTOR: 285 (Optional) Associated Items : New Also A-FRM-MH, A-MH-O-MF1080, A-MH-P-MF1080, A-MH-S-MF1080, A-SMMF201, A-MH-O-MF1085, A-MH-P-MF1085, A-MH-S-MF1085, A-SMMF201, A-MH-O-MF285, A-MH-O-MF285LATE, A-MH-P-MF285, A-MH-S-MF285 And : Spline Count: 10 Spline Diameter: 1.125"