This is a A-R27487 Shaft, Hydraulic Pump Drive PN: R27487Main Description As Following : A-R27487 Shaft, Hydraulic Pump Drive P.N: R27487 Dim A (1): 14 SplineDim B (2): 4.62" Long Crossed From: WN-R27487 , , WNR27487 , Found in Section & Models : Hydraulic System Parts > Miscellaneous Hydraulic Parts, John Deere TRACTOR: 3010 (SN <032999), John Deere TRACTOR: 4010 (SN <038199) Associated Items : New Also A-FRM-JD, A-JD-O-OMR32385, A-JD-P-PC736, A-JD-S-SM2038, A-SMJD203, A-FRM-JD, A-JD-O-OMR32129, A-JD-P-PC737, A-JD-S-SM2039, A-MW-OP-JD4010, A-MW-S-TURBO, A-SMJD203 And : Dim A (1): 14 Spline Dim B (2): 4.62" Long