The initials S.U.stand for Skinners Union. From these beginnings the S.U. Company grew into one of the major manufacturers of car fuel systems and components in Europe, its carburetters being widely used on both touring and competition vehicles. S.U.
Featuring Classic and simple styling, this chrome, round die cast air cleaner fits Bendix / Zenith, Keihin (except CV) carburetors and includes a washable foam element, gaskets, and hardware necessary to mount it. Measures 5-1/2" diameter. Looks great on an Ironhead Sportster chopper, see additional fitment below.