Applicable Model: Voltage regulator rectifier fit for Fxst, Flst, Fxcw Models 2008-2010, please confirm the model carefully to ensure precise fit. Part Number: Manufactured according to strict original specifications, motorcycle regulator rectifier reference part number is 7454008. Battery Protection: The voltage rectifier stops charging the battery when the battery power is to prevent the battery from overcharging, thus extending the service life of the battery. Aluminum Shell: The voltage regulating rectifier is made of aluminum material, with stable performance and improved heat dissipation and charging capacity. Waterproof and Shockproof: The integrated full sealing process makes the rectifier waterproof, dustproof, shockproof and rust proof, which can extend the service life of the rectifier.