This is a A-SJ18395 Disc, Brake PN: SJ18395Main Description As Following : A-SJ18395 Disc, Brake P.N: SJ18395 Lining Inside Diameter: 8.280"Lining Outside Diameter: 9.770"Replaces: AL119874Spline Count: 14Spline Diameter: Major: 1.936"/ Minor: 1.422"Thickness: .183" Crossed From: AL119874 JOHN DEERE Found in Section & Models : Transmission & Rear Axle > Brake Disc and Plates, John Deere TRACTOR: 5045D, John Deere TRACTOR: 5055D, John Deere TRACTOR: 5103, John Deere TRACTOR: 5103E, John Deere TRACTOR: 5103S, John Deere TRACTOR: 5104, John Deere TRACTOR: 5105, John Deere TRACTOR: 5203, John Deere TRACTOR: 5204 Associated Items : A-L116596 Also This is An Aftermarket Product And : Lining Inside Diameter: 8.280" Lining Outside Diameter: 9.770" Replaces: AL119874 Spline Count: 14 Spline Diameter: Major: 1.936"/ Minor: 1.422" Thickness: .183"