THIS IS AN OEM OIL DRIVE SPINDLE. FITS: CRF50 2000 TO 2009 XR50 ALL CRF70 2003 TO 2009 XR70 1997 TO 2002 Z50R 1984 TO 1999 81L @ *BUSHING OIL PUMP SHAFT CRF50 CRF70 TRX90 15384-178-000 1/21A (251A)PIVOT, OIL PUMP FITS: CRF50 2000 TO 2009 XR50 ALL CRF70 2003 TO 2009 XR70 1997 TO 2002 Z50R 1984 TO 1999 251A