Just an FYI.....Compufire 55402 bolts onto existing bracket and all you do is splice wire or as i did buy a mating weather pack connector and you have a nice non shunt based regulator. These can be purchased for $155.20 no shipping. This unloads stator for longer life. Why buy foreign parts for more money? Rated at 40 amps made in USA. Another USA manufacturer of non shunt regulators is Cycle Electric in Ohio. Their 600 series regulators are 3 phase non shunt. Made in USA.