The distributor cap houses the terminals that receive the high-voltage spark from the rotor and distribute it to each spark plug wire in the correct firing order. Cracks or carbon tracking inside the cap allow the spark to short to ground, causing severe misfires and hard starting. Our distributor caps are molded from high-grade insulating materials with integrated brass or aluminum terminals. They provide a secure, insulated pathway for the spark, preventing energy loss and ensuring it is delivered reliably to the correct cylinder every time.