TYC heavy-duty alternators are built brand-new, with no recycled internal components. The bearings, field casing, rotor, rectifier, stator, diode, regulator are all 100 percent new and not remanufactured. 100 percent new with no recycled or remanufactured components means that your TYC alternator is factory-fresh and unused by any other vehicle. This improves its reliability over longer periods of time, ensuring that you do not have to find another replacement for the foreseeable future.