Inner Diameter(intake side):35mm/Outer Diameter(intake side):42mm.Inner Diameter(air filter side):52mm;Outer Diameter(air filter side):55mm. Carburetor Replacement for Arctic Cat 250 2002-2005;Carburetor Replacement for Arctic Cat 300 2001-2005. Replaces Manufacturer Part Number:0470-427 0470-448. Carburetor.Good at mixing fuel and air,keeping the engine running smoothly,and preventing the engine from running out of fuel or overflowing.
