Including:This item Include Carburetor, air filter, fuel filtyer and gaskets.work with hand choke carbSITE:Mounting bolt dimension: 47mm,the air filter interface outside diameter:37mm,Intake inside diameter:19mmMERIT: The metal material ensures dependable strength and strong structure.FITMENT: Fits for most 50CC 70cc 90cc 110cc 125CC ATVs, go karts with 4 stroke engineNOTICE:Please check pictures for details and specifications before you buy19mm Carburetor Intake Mount Diameter: 19mmBolting Hole Distance: 47mmDiameter of the listing air filter is 37mmFits most 50CC 70cc 90cc 110cc 125CC ATVs, go karts with 4 stroke engine.Fits most , like , Buyang, Coolsports, AIM-EX, Kazuma, etc.Please check pictures above for details and specifications before you buy.