This is a A-LVU11630 Spacer, Torsional Damper PN: LVU11630Main Description As Following : A-LVU11630 Spacer, Torsional Damper P.N: LVU11630 Dim A (1): 9.500" O.D.Dim B (2): .313" Thickness Found in Section & Models : Transmission & Rear Axle > Clutch Related Parts, John Deere TRACTOR, COMPACT: 4200, John Deere TRACTOR, COMPACT: 4210, John Deere TRACTOR, COMPACT: 4300, John Deere TRACTOR, COMPACT: 4400 Associated Items : New Also This is An Aftermarket Product And : Outside Diameter: 9.500" Thickness: .313"