This is a A-1671706M4 Gear, Constant Mesh PTO PN: 1671706M4Main Description As Following : A-1671706M4 Gear, Constant Mesh PTO P.N: 1671706M4 Dim A (1): 53 O.D. TeethDim B (2): 21 Spline Crossed From: HM1671706 , Found in Section & Models : PTO Parts > PTO and Related Parts, Massey Ferguson TRACTOR: 230 (SN 9A334731>), Massey Ferguson TRACTOR: 231, Massey Ferguson TRACTOR: 240, Massey Ferguson TRACTOR: 245 (SN 9A334947>), Massey Ferguson TRACTOR: 250, Massey Ferguson TRACTOR: 282, Massey Ferguson TRACTOR: 290, Massey Ferguson TRACTOR: 290 UK, Massey Ferguson TRACTOR: 360, Massey Ferguson TRACTOR: 362, Massey Ferguson TRACTOR: 365, Massey Ferguson TRACTOR: 375, Massey Ferguson TRACTOR: 383, Massey Ferguson TRACTOR: 390, Massey Ferguson TRACTOR: 390T, Massey Ferguson TRACTOR: 4225, Massey Ferguson TRACTOR: 4235, Massey Ferguson TRACTOR: 4243, Massey Ferguson TRACTOR: 4245, Massey Ferguson TRACTOR: 4253 Associated Items : New Also A-MH-O-MF230, A-MH-O-MF230ERLY, A-MH-P-MF230, A-MH-S-MF240, A-SMMF42, A-MH-O-MF231, A-MH-P-MF231, A-MH-S-MF231261, A-MH-O-MF240250, A-MH-S-MF240, A-SMMF42, A-MH-O-MF245, A-MH-P-MF245, A-MH-S-MF245, A-SMMF42, A-MH-O-MF240250, A-MH-S-MF240, A-SMMF42, A-MH-O-MF282, A-MH-P-MF282 And : Dim A (1): 53 O.D. Teeth Dim B (2): 21 Spline