This is a A-R62685 Pinion Shaft PN: R62685Main Description As Following : A-R62685 Pinion Shaft P.N: R62685 Dim A (1): 15 TeethDim B (2): 18 SplineDim C (3): 9.780" LongReplaces: R59928 Replaces: R59928 JOHN DEERE , Crossed From: AMR62685 , , 108529 , Found in Section & Models : Transmission & Rear Axle > Diff Planetary Carriers and Related Parts, John Deere TRACTOR: 4000, John Deere TRACTOR: 4020, John Deere TRACTOR: 4050 (SN 2725-> POWR SHIFT, SN 6644-> QUAD), John Deere TRACTOR: 4055 (W/ 86MM AXLE), John Deere TRACTOR: 4230 (SN 26189-> W/ 51MM WIDE GEAR), John Deere TRACTOR: 4240, John Deere TRACTOR: 4240S, John Deere TRACTOR: 4250 (SN 1000->), John Deere TRACTOR: 4255 (W/ 86MM AXLE), John Deere TRACTOR: 4320, John Deere TRACTOR: 4430 (SN 40771->), John Deere TRACTOR: 4455 Associated Items : New Also A-JD-O-OMR46934, A-JD-O-OMR48273, A-JD-P-PC1116, A-JD-S-TM1006, A-SMJD203, A-FRM-JD, A-JD-O-OMR34410, A-JD-O-OMR41754, A-JD-O-OMR46934, A-JD-O-OMR48273, A-JD-P-PC1116, A-JD-P-PC859, A-JD-S-SM2039, A-JD-S-TM1006, A-MW-OP-JD4010, A-MW-S-TURBO, A-SMJD203, A-FRM-JD, A-JD-O-OMR65347, A-JD-S-TM1056 And : Length: 9.780" Replaces: R59928 Spline: 18 Teeth: 15