Empi now offers a 6061 T-6 Aluminum front pulley cover for all 12 Volt Alt/ Gen applications. These cover are the outer half only and feature machined holes for a custom look which also functions to rid the belt area of dirt and debris. It is also offered complete with a silver zinc steel inner pulley half if you want a complete assembly. Outer halves only are available in Polished aluminum, black, blue or red anodized. Choose your options.