This is a A-74001167 Ring Gear, Flywheel PN: 74001167Main Description As Following : A-74001167 Ring Gear, Flywheel P.N: 74001167 Dim A (1): 16.250" O.D.Dim B (2): 17.375" I.D.Dim C (3): .750" ThickDim D (4): 138 Teeth Found in Section & Models : Engine Parts > Flywheels and Ring Gears, Allis-Chalmers TRACTOR: 4W220, Allis-Chalmers TRACTOR: 7030, Allis-Chalmers TRACTOR: 7040, Allis-Chalmers TRACTOR: 7045, Allis-Chalmers TRACTOR: 7050, Allis-Chalmers TRACTOR: 7060, Allis-Chalmers TRACTOR: 7080, Allis-Chalmers TRACTOR: 7580, Allis-Chalmers TRACTOR: 8030, Allis-Chalmers TRACTOR: 8050, Allis-Chalmers TRACTOR: 8070, Gleaner COMBINE: L, Gleaner COMBINE: L2, Gleaner COMBINE: L3, Gleaner COMBINE: MH, Gleaner COMBINE: MH2, Gleaner COMBINE: MH3, Gleaner COMBINE: N5, Gleaner COMBINE: N6, Gleaner COMBINE: R5 Associated Items : New Also A-AC-O-4W220, A-AC-S-4W220, A-AC-O-7030, A-AC-P-7030, A-AC-S-70307050, A-SMAC202, A-AC-O-7040DSL, A-AC-P-7040, A-AC-S-7040, A-FRM-ACCACO, A-SMAC202, A-AC-O-7045, A-AC-P-7045, A-AC-S-7010, A-SMAC202, A-AC-P-7050DSL, A-AC-S-70307050, A-FRM-ACCACO, A-SMAC202, A-AC-O-7060 And : Inside Diameter: 16.250" Outside Diameter: 17.375" Teeth: 138 Thickness: 0.750"