This is a brand-new OEM rubber flange connecting the carburetor to cylinder head for the following models. 

• 2003 WR450F (WR450FR) - Intake
• 2003 YZ450F (YZ450FR) - Intake
• 2004 YFZ450 (YFZ450S) - Intake
• 2004 YFZ450 LIMITED EDITION (YFZ450LES) - Intake
• 2005 YFZ450 (YFZ450T) - Intake
• 2005 YFZ450 SPECIAL EDITION (YFZ450SET) - Intake

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