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Huayi P28-H-4 Dual Fuel Carburetor for Champion 439cc 420cc Generators –
Wide Compatibility– Fits Champion 439cc, 389cc, and 420cc generators, including models 100153, 100165, 100230, 100231, 100275, 100296, 100297, 100320, 100592, 71530, and more. Designed for 9000W starting watt and 7500W running watt dual-fuel generators.