If you want your Plymouth to start at the right instant the moment you turn the key, better make sure that the ignition system of your vehicle is up to the job. The ignition system of an automobile is an important part of the overall engine system that will ultimately provide for the timely burning of the fuel and air mixture within the engine. And because it is a system, expect that your Plymouth ignition is a product of the concerted effort of many ignition components. One of these is the Plymouth ignition coil, often considered as the heart of your Plymouth ignition system. The ignition coil is the induction coil that converts the 12 volts of the storage battery into the thousands of volts needed to spark the spark plugs. This performance part is nothing more than an electronic transformer that contains both primary and secondary winding circuits. The primary circuit wire goes into the coil through the positive terminal, loops around the primary windings, then exits through the negative terminal. This wire should be insulated so that the voltage does not jump from loop to loop, shorting it out. The part will also have a secondary circuit that should also be insulated from each other. Judging from the unenviable role that the ignition coil is designed to perform, it is always important to have a reliable one installed in your auto. The moment your stock ignition coil begins to show signs of failure because of the action of heat and other pressures, better replace the part fast. Do not settle on just any ignition coil for a replacement. It is much better to get the best there is than compromise the overall performance of your auto's ignition system. For your Plymouth ignition coil needs, visit our site and scan our online catalog of Plymouth parts and accessories.