USA made cover, manufactured from 356-T6 billet aluminum. This transmission end-cover converts any 5 Speed mechanical clutch to smooth hydraulic function. Adjust the clutch once and forget it. No more cable to stretch, break or requiring continuous regular adjustment. Hand effort at the clutch lever is also reduced. This hydraulic clutch unit comes completely assembled with a precision fitted piston and seal. Available show polished or show chromed. For use with Ness or GMA handlebar mounted master cylinders. Fits all 1987 thru 2006 Big Twin and Twin Cam models (except 2006 Dyna).