Alternator. Alternator Remanufactured. "Remanufactured DENSO alternators go through a grueling process: Stators and rectifiers are tested to 300 volts, while rotors are submitted to 600 volts, all to ensure reliable performance. Rotor slip rings are buffed to an 8 micron surface finish, with runout limited to 20 microns, minimizing brush wear and abrasion. Bearings are validated to OE standards and loaded with premium OE-standard lubricants.".DENSO has taken everything they have learned as an Original Equipment manufacturer and use it to their superior aftermarket product lines of auto parts