Sold as a kit, including the Rectifier and the Mounting Hardware, this Rectifier Regulator Kit is sourced directly from the original equipment manufacturer. The Rectifier Regulator is responsible for converting AC power to DC and regulates how much electricity is delivered to the battery. When malfunctioning, it can cause your battery to have less or no power. In some cases, it can cause your battery to have too much power, damaging the internal plates of the battery. You will need a screwdriver and a nut driver to complete this repair. Customers rate this repair as Easy.