This is a A-R70856 Plate, PTO Clutch & Brake PN: R70856Main Description As Following : A-R70856 Plate, PTO Clutch & Brake P.N: R70856 Inside Diameter: 3.897"Outside Diameter: 5.750" Crossed From: AMR70856 , Found in Section & Models : Transmission & Rear Axle > Clutch Plates: Clutch and PTO, John Deere TRACTOR: 4050 (w/ powershift), John Deere TRACTOR: 4055 (w/ powershift), John Deere TRACTOR: 4250 (w/ powershift), John Deere TRACTOR: 4255 (w/ powershift), John Deere TRACTOR: 4450 (w/ powershift), John Deere TRACTOR: 4455 (w/ powershift), John Deere TRACTOR: 4555 (w/ powershift), John Deere TRACTOR: 4560 (w/ powershift), John Deere TRACTOR: 4650 (w/ powershift), John Deere TRACTOR: 4755 (w/ powershift), John Deere TRACTOR: 4760 (w/ powershift), John Deere TRACTOR: 4850 (w/ powershift), John Deere TRACTOR: 4955 (w/ powershift), John Deere TRACTOR: 4960 (w/ powershift) Associated Items : New Also A-JD-O-OMRW16854, A-JD-O-OMRW16854 And : Inside Diameter: 3.897" Outside Diameter: 5.750"