Kit contains all of the components required to properly rebuild the swing arm bearing assembly. POM composite washer bearings replace thruneedle washers fincreased service life and superiresistance t -water and dirt. All metal bushings are case hardened and plated tprevent wear and corrosion. Needle bearing shafts are made with SCM415/42 bearing steel that has been hardened and precision ground. Verify the part fits before purchasingAccel. Pump Rebuild Kit Closed Course Racing Only for HondaApplications:Honda CRF150R 2007 - 2009, CRF150RB 2007 - 2009, CRF250R 2004 - 2009, CRF250X 2004 - 2006, CRF450R 2002 - 2006, CRF450X 2005 - 2007