Specs: Linkage Bearing Kit, Contains: 6 Bushings, 7 Needle Bearings, 4 Needle Bearing Shafts, 10 Seals, 4 Washers All metal bushings are case hardened and plated tprevent wear and corrosion Compatible With/Replacement For: Yamaha WR250F 2007 - 2014, WR450F 2007 - 2015, YZ250F 2006 - 2008, YZ450F 2006 - 2008 1-year warranty protects you after your purchase. We're confident that our products will work flawlessly once installed in your vehicle. In the rare case that it does not, we'll replace it anytime within one year of your order. If you have a problem, we will take every step to assist you. Contact us for a replacement. 100% New aftermarket Linkage Bearing Kit built to meet OEM specifications