This is a A-RE173314 Bearing, Release PN: RE173314Main Description As Following : A-RE173314 Bearing, Release P.N: RE173314 Inside Diameter: 2.559"Outside Diameter: 3.937"Replaces: RE72121, RE173314, RE72122 Stocked As: A-CH18554 Found in Section & Models : Clutch Parts > Double Clutch, John Deere TRACTOR: 1250, John Deere TRACTOR: 1450, John Deere TRACTOR: 1650, John Deere TRACTOR: 5010, John Deere TRACTOR: 5020, John Deere TRACTOR: 5039D, John Deere TRACTOR: 5045D, John Deere TRACTOR: 5045E, John Deere TRACTOR: 5050E, John Deere TRACTOR: 5055D, John Deere TRACTOR: 5055E, John Deere TRACTOR: 5058E, John Deere TRACTOR: 5060E, John Deere TRACTOR: 5065E, John Deere TRACTOR: 5067E, John Deere TRACTOR: 5075E, John Deere TRACTOR: 5076EF, John Deere TRACTOR: 5076EL, John Deere TRACTOR: 5082E, John Deere TRACTOR: 5083E Associated Items : New Also A-JD-O-OMRW18976, A-JD-O-OMRW18976, A-JD-O-OMRW18976, A-SMJD203, A-JD-O-OMR42449, A-JD-P-PC1156, A-JD-P-PC978, A-JD-S-TM1022, A-SMJD203, A-SMJD203 And : Inside Diameter: 2.559" Outside Diameter: 3.937" Replaces: RE72121, RE173314, RE72122