What is a Spark Plug Wire?

What is a spark plug cable?

The spark plug cable transfers the electricity it receives from the ignition coil or distributor to the spark plugs. Spark plugs produce ignition at regular intervals to ignite the air/fuel mixture present in the combustion chamber. In this way, the available fuel burns and the resulting pushback of the pistons results in regular operation in the engine.

They can reach temperatures of up to 200 degrees in the environment they work in. That's why they need to be made of heat-resistant cables. They can also transfer current up to 40,000 V. This shows that the internal structure of the cable used must have sufficient winding and sufficient omage value.

How long is their lifespan?

Spark plug cables are engine parts that operate under high voltage and high temperature. They are exposed to high temperatures every time the engine starts and cool down when the engine is finished. That is, they are in a constant hot-cold cycle. Therefore, over time, both the cable, the rubbers at the ends, and the wire carrying the voltage begin to fatigue and wear out.

It is recommended to replace your spark plug cable between 35,000 – 40,000 KM. However, if any ignition or skipping problems occur, replacement may occur much earlier depending on the quality of the cable you use.

Even if there are no signs of fault, it is recommended to replace the spark plug cables between 35,000 and 40,000 KM to prevent possible errors.