ESR439 is a modern high quality regulator/rectifier that offers superior performance compared to the OEM unit it replaces. We used our latest generation power circuit and installed it in a highly efficient heat sink. ESR439 is offered as a plug in replacement with high quality connectors and wiring, and it runs much cooler thanks to the advanced heat sink design and modern circuitry that is utilized.We offer ESR439 with a full one year warranty.

CBR600RR (07-12)
CBR600RA (09-11)
CBR1000RR (04-05)
CBR1000RR (06-07)