Within the ignition system of most internal combustion engine, there is a component that works by allowing the high voltage to flow exactly at the accurate firing down to the spark plug. This part that is described above is the distributor which is made up of a rotating arm commonly known as the rotor within its distributor cap just on top of the distributor shaft. Through the help of a spring loaded carbon brush, the metal part of the rotor is able to make contact with the central high voltage cable from the coil. Moreover, the metal component of the rotor arm passes close to the output contacts which are affixed to the part by the use of a high tension cables to the spark plug of the cylinder. The distributor like any other part is also made up of other parts that works hand in hand for the total performance of the vehicle and among its subparts are distributor cap and distributor rotor that if not taken proper care can also cause engine problem. Basically, the distributor cap is the part that distributes electricity starting from the ignition coils down to the spark plug wires at the correct timing. The part is created from hard plastic and some copper. The distributor rotor on the other hand like the Cadillac distributor rotor is the part that rotates right at the same time while it receives current from the ignition coils and hand it over to the copper portion of the cap until such time when it arrive at the spark plugs. Because of the importance of these two parts, you need to properly inspect them regularly taking into consideration the fact that they are bombarded with high voltage at all time. If you need to buy a new Cadillac distributor rotor, you can have it hear at our site. For all you Cadillac needs, shop with us!