This is a A-3386896M92 Disc, Brake PN: 3386896M92Main Description As Following : A-3386896M92 Disc, Brake P.N: 3386896M92 Dim A (1): 3.105" I.D.Dim B (2): 14.00" O.D.Dim C (3): 13 Teeth Crossed From: 1202-2014 , Found in Section & Models : Transmission & Rear Axle > Brake Disc and Plates, Massey Ferguson TRACTOR: 3070 (