Spark plugs are an integral part of any combustion engine, and your Ford F-100 is no exception. Without functional spark plugs, the F-100’s ignition system wouldn’t be able to create voltage from the battery and ignite the fuel/air mixture inside the engine combustion chambers to start your F-100.

Over time, spark plugs can wear down due to constant exposure to heat and electricity, reducing their effectiveness and preventing your F-100 from starting. Check out replacement spark plugs, sold individually or in sets of four or eight, for a variety of F-100 engine sizes. Don’t forget the corresponding spark plug wires to keep the rest of your F100’s ignition system in great shape.