A key component of your engine’s ignition system, your Ford F350 spark plug wires have to be of great quality in order to handle the large amounts of electricity they convey. Your F350 spark plug wires connect your spark plugs to the distributor, which is the source of power for the spark that ignites the oxygen-fuel mixture in your combustion cylinders. Since a hot spark is necessary to ignite your fuel, your spark plug wires have to be able to carry a full charge of electricity to your spark plugs.

If there are cracks in the silicon coating around the Ford F350 spark plug wires, or if the wires themselves are damaged, the electricity is going to escape and move elsewhere. Faulty F350 spark plug wires can lead to poor gas mileage, black or corroded spark plugs, detonations, misfires, and even failed engine starting.

Unfortunately, a visual inspection of your spark plug wires will not always uncover the damage, since the wire coating may be cracked on the inside, and you cannot see the wires inside the jacket. You should change your Ford F350 spark plug wires every time you have an engine tune-up, whenever you replace your spark plugs, and when poor engine performance seems to indicate damaged wires. It is important to use genuine F350 spark plug wires when you replace them, because your spark plug wires are all different lengths in order to reach from the distributor to the various spark plug locations in your engine.Browse our online catalogue to find the spark plug wires you need, and you won’t pay a lot to get your engine back into good running shape again.