This is a A-T159475 Disc, Parking Brake PN: T159475Main Description As Following : A-T159475 Disc, Parking Brake P.N: T159475 Inside Diameter: Major: 4.182" Minor: 3.914"Outside Diameter: 5.785"Teeth: 34Thickness: .149" Crossed From: 1402-2019 , 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: 310J, John Deere BACKHOE: 310K, John Deere BACKHOE: 310K EP, John Deere BACKHOE: 310L, John Deere BACKHOE: 310L EP, John Deere BACKHOE: 310SE, John Deere BACKHOE: 310SG, John Deere BACKHOE: 310SJ, John Deere BACKHOE: 310SK, John Deere BACKHOE: 310SL, John Deere BACKHOE: 310SL HL, John Deere BACKHOE: 315SE, John Deere BACKHOE: 315SG, John Deere BACKHOE: 315SJ, John Deere BACKHOE: 315SK, John Deere BACKHOE: 315SL, John Deere BACKHOE: 325J Associated Items : New Also This is An Aftermarket Product And : Inside Diameter: Major: 4.182" Minor: 3.914" Outside Diameter: 5.785" Teeth: 34