A wide selection of replacement primary drive belts to fit most belt drive units on the market today. All belts, whether HTD Rubber belts or HTD Poly Chain belts, are manufactured by the Gates Rubber Company. All replacement belts are listed showing their pitch, construction, width, number of teeth, and their most common applications.
1 1/2"-wide, 99-teeth. Replaces #1185 belt for Big Twins from 1936-early 1984 with open or closed primaries, kick or electric start, newer-style combinations with a 31/47-tooth pulley combination. Replacement belt for belt drive kits #42585, 42586, 42587, and 42588