This is a A-513574M91 Pressure Plate: 11", (w/ 1.406" flywheel step) PN: 513574M91Main Description As Following : A-513574M91 Pressure Plate: 11", (w/ 1.406" flywheel step) P.N: 513574M91 Spline Count: 10Spline Diameter: 1.750" Replaces: 513574-R MASSEY FERGUSON , Crossed From: M513574 , , 1040884M1 , , 5509 BMD MFG Found in Section & Models : Clutch Parts > Split Torque Clutch, Massey Ferguson INDUSTRIAL/CONSTRUCTION: 31, Massey Ferguson TRACTOR: 165 (10 Spline w/ Independent PTO), Massey Ferguson TRACTOR: 175 (10 Spline w/ Independent PTO), Massey Ferguson TRACTOR: 180 Associated Items : New Also A-MH-P-MF31, A-MH-S-MF31, A-FRM-MH, A-MH-O-HYDRSYST, A-MH-O-MF165, A-MH-P-MF165, A-MH-S-MF100LDR, A-MH-S-MF165, A-SMMF27, A-FRM-MH, A-MH-O-HYDRSYST, A-MH-O-MF175-180, A-MH-P-MF175, A-MH-P-MF175178, A-MH-S-MF100LDR, A-MH-S-MF175, A-FRM-MH, A-MH-O-HYDRSYST, A-MH-O-MF180, A-MH-P-MF180 And : Spline Count: 10 Spline Diameter: 1.750"