ESR442 is a high quality regulator/rectifier that offers superior performance over the Kawasaki ZX-6R OEM regulator. Our ESR442 consist of our newest generation Power Circuit that is installed inside a modern and highly efficient heat sink. ESR442 offers a stable battery voltage at all times and runs cooler than the OEM unit. We offer ESR442 as a plug in replacement with high quality connectors and wiring, ready to plug into the Kawasaki wiring harness. ESR442 comes with a full one year warranty.