This is a A-70235253 Seal, Clutch Shaft PN: 70235253Main Description As Following : A-70235253 Seal, Clutch Shaft P.N: 70235253 Inside Diameter: 2.0625"Outside Diameter: 3.1875"Width: .375" Found in Section & Models : Transmission & Rear Axle > Clutch Related Parts, Allis-Chalmers TRACTOR: D17, Allis-Chalmers TRACTOR: D19, Allis-Chalmers TRACTOR: 170, Allis-Chalmers TRACTOR: 175, Allis-Chalmers TRACTOR: 180, Allis-Chalmers TRACTOR: 185, Allis-Chalmers TRACTOR: 190, Allis-Chalmers TRACTOR: 190XT, Allis-Chalmers TRACTOR: 190XTIII, Allis-Chalmers TRACTOR: 200 Associated Items : New Also A-AC-O-D17DERLY, A-AC-O-D17DSL, A-AC-O-D17GAS, A-AC-O-D17III, A-AC-O-D17IV, A-AC-O-D17MID, A-AC-O-IMPLHITCH, A-AC-O-MARKIVANDV, A-AC-P-D17, A-AC-P-D17SERIV, A-AC-S-D17, A-AC-S-FUELINJ, A-FRM-ACCACO, A-SMAC201, A-AC-O-D19, A-AC-O-IMPLHITCH, A-AC-P-D19, A-AC-S-D19, A-AC-S-FUELINJ, A-FRM-ACCACO And : Inside Diameter: 2.0625" Outside Diameter: 3.1875" Width: .375"