IMS 117326N2 Natural Large Fuel Tank - 3.1 Gallon Capacity Fits: Yamaha YZ250F 03-05, YZ450F 03-05, WR250F 03-06, WR450F 03-06 IMS tanks are larger capacity than stock, yet very slim and sleek IMS fuel tanks are designed to enhance the appearance of your motorcycle, yet provide greater riding distance per full tank Made with polyethylene crosslink for extra strength and durability 2003 - 2004 WRF models require 2003 - 2005 YZF shrouds