An ACDelco Professional Remanufactured Distributor is a high quality replacement for many vehicles on the road today. It is an assembly that contains a switching device, distributor cap, distributor rotor, and distributor shaft. The switching device or sensor provides the signal to switch the ignition coil primary circuit ON and OFF at the correct moment. Remanufacturing the distributor is an industry standard practice that involves disassembly of existing units, and replacing components that are most prone to wear with new components. Damaged and obsolete parts are replaced and are end of line tested to ensure they perform to ACDelco specifications. In addition, remanufacturing returns components back into service rather than processing as scrap or simply disposing of them. This premium aftermarket replacement component will provide the same performance, durability, and service life you expect from ACDelco.