The Chevy distributor cap is an important component in the ignition system of your vehicle, crucial to the efficient transmission of the high voltage spark necessary to ignite the fuel in the cylinders of the engine and begin the combustion process. The high voltage that this process requires is transmitted to the distributor from the coil, through a heavily insulated wire that connects these two components. The distributor must transmit the voltage to each engine cylinder in order for combustion to occur, and this is the purpose of the Chevy distributor cap and the rotor it contains. The rotor spins inside the Chevy distributor cap, attached to the center shaft of the distributor. As it rotates inside the Chevy distributor cap, it passes a series of electrical connections, one for each engine cylinder. The coil emits a burst of high voltage each time the rotor tip aligns with a contact, causing it to arc across the tip of the rotor to the contact, and then travel on through the ignition wires to the spark plugs to ignite the fuel in the engine cylinders. As time passes, the Chevy distributor cap will deteriorate from the high voltage spark that it transmits, becoming less efficient in its function. For this reason, the regular replacement of the Chevy distributor cap is a part of regular vehicle maintenance, usually during the normal tune-up of the vehicle. We carry a selection of quality Chevy distributor cap replacement parts in our user-friendly online catalog. Our site is secure and efficient, making it safe and easy to order your Chevy distributor cap replacement parts or our toll-free phone line can take your order just as conveniently.