This is a A-T161233 Disc, Service Brake, 4MM PN: T161233Main Description As Following : A-T161233 Disc, Service Brake; 4MM P.N: T161233 Inside Diameter: 5.993"Outside Diameter: 9.585"Teeth: 81Thickness: .158" Crossed From: 1402-2003 , Found in Section & Models : Transmission & Rear Axle > Brake Disc and Plates, John Deere ARTICULATED DUMP TRUCK: 310E, John Deere ARTICULATED DUMP TRUCK: 410E, John Deere BACKHOE: 310G, John Deere BACKHOE: 310SE, John Deere BACKHOE: 310SG, John Deere BACKHOE: 315SE, John Deere BACKHOE: 315SG, John Deere BACKHOE: 410E, John Deere BACKHOE: 410G, John Deere FORKLIFT: 485E, John Deere FORKLIFT: 486E, John Deere FORKLIFT: 488E, John Deere INDUSTRIAL/CONSTRUCTION: 210LE, John Deere INDUSTRIAL/CONSTRUCTION: 310E Associated Items : New Also This is An Aftermarket Product And : Inside Diameter: 5.993" Outside Diameter: 9.585" Teeth: 81 Thickness: .158"