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The Red Cap is not a Tillotson OE fuel cap but a fuel cap designed by EC Carburetors. We improved the fuel flow and the strength of the fuel cap for our built blueprinted carburetors. All of our Dominators and Intimidator Series Carburetors come with red fuel caps unless the rules prohibit.
This cap can be used for gas or methanol applications. If rules allow we highly recommend using our red fuel caps on all of your Tillotson carburetors. If you want a shatterproof fuel cap we also have our EC Billet fuel cap. Check your rules and carburetor listing before ordering
91A-351R EC Red Hi-Flow Fuel Inlet/Strainer Cover are universal fitment with Tillotson carburetors and work on HL, HW, HR, HB, HM, HD, HX Model Carburetors.