Controls voltage on Harley-Davidson and Buell alternators, unlike other rectifiers or regulators that dump to ground and cause maximum stator current and higher temperatures
Cycle Electric rectifying regulators block current to control voltage; this reduces stator current, resulting in low temperature and less drag on the motor, which means more efficient operation
Before replacing regulator, test stator for shorts to ground and proper AC output. If the stator is bad, a complete charging system upgrade part # 2112-1823 is recommended.