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The Blue Cap is fuel and chemical resistant and what 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.