TCMT Replacement Carb Fuel System Carburetor For ATV Polaris Sportsman 90 90cc CA40 2001 2002 2003 2004 2005 2006 Good at mixing fuel and air,Keep engine running smoothly,Material:Zinc alloy Inner Diameter (intake side):19mm Outer Diameter (intake side):23mm Inner Diameter (air filter side):31mm,Outer Diameter(air filter side):37mm Package Included:1 X Carburetor