ElectroSport ESR823 Regulator/Rectifier Polaris Sportsman - 4012678 by ElectroSport at Wheelers for the Wounded. MPN: ESR823. Hurry! Limited time offer. Offer valid only while supplies last. ESR823 is a heavy duty and very high quality Regulator/Rectifier that replaces the Polaris OEM regulator. ElectroSport incorporated the latest electronic regulation circuitry and built the ESR823 into a highly efficient heatsink that is dimensionally identical to the OEM unit. After installation of the ESR823 you will notice a stable voltage across the RPM range perfectly matched to what your battery needs to see as a charge rate. The unit comes with the same wiring and connectors as the OEM
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