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The Blue Cap is fuel and chemical resistant and what is commonly comes on carburetors with high volume(double stack, Alky) Pump plates.
This cap can be used for gas or methanol applications. We suggest using the factory cap at a minimum, but if your rules allow, we recommend using our EC Red Cap for the best flow and cap strength of the plastic cap. If you want a shatterproof fuel cap, we also have our EC Billet fuel cap. Check your rules and carburetor listing before ordering.
91A-351 OE Tillotson Blue Fuel Inlet/Strainer Cover are universal fitment with Tillotson carburetors and work on HL, HW, HR, HB, HM, HD, HX Model Carburetors.