This is a A-T14340 Disc, Steering Clutch PN: T14340Main Description As Following : A-T14340 Disc, Steering Clutch P.N: T14340 Dim A (1): 9.974" O.D.Dim B (2): 33 internal teeth, fiber Crossed From: R14340 , Found in Section & Models : Clutch Parts > Steering Clutch, John Deere INDUSTRIAL/CONSTRUCTION: 2010, Transmission & Rear Axle > Clutch Related Parts, John Deere INDUSTRIAL/CONSTRUCTION: 2010, John Deere INDUSTRIAL/CONSTRUCTION: 2010 (Crawler) Associated Items : New Also A-JD-S-SM2037 And : Dim A (1): 9.974" O.D. Dim B (2): 33 internal teeth, fiber