Fits front handlebarmounted master cylinders on all models from late 1985 thru 1995, the rear master cylinders on Dyna Glide models from 1991 to present, and the forward control-mounted rear master cylinders on Heritage Softail® and Fat Boy® models from late 1987 to present. Also fits the rear master cylinders on all Sportster® models from late 1987 to present.