This is a A-278673M92 Sprocket, Double Idler, Slat Elevator (LH) PN: 278673M92Main Description As Following : A-278673M92 Sprocket, Double Idler, Slat Elevator (LH) P.N: 278673M92 Dim A (1): 50 chainDim B (2): 31 & 33 tooth Crossed From: AV101729 VAPORMATIC Found in Section & Models : Headers/Platforms/Feeder House > Feeder House Parts, Massey Ferguson COMBINE: 750, Massey Ferguson COMBINE: 760, Massey Ferguson COMBINE: 850, Massey Ferguson COMBINE: 855, Massey Ferguson COMBINE: 860, Massey Ferguson COMBINE: 865 Associated Items : New Also A-MH-S-MF750760, A-MH-S-MF750760 And : Dim A (1): 50 chain Dim B (2): 31 & 33 tooth