APPLICATIONS OF THIS PRODUCT: According to the data provided by the manufacturer, this article is compatible with the following brands, models and years: SWING ARM BEARING KIT YAMAHA WR250F 01 YAMAHA WR400F 99 henceforth0 YAMAHA WR426F 01 YAMAHA YZ125 99 henceforth1 YAMAHA YZ250 99 henceforth1 YAMAHA YZ250F 01 YAMAHA YZ400F 99 YAMAHA YZ426F 00 henceforth1