Spark Plug

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Spark plugs are a small, yet extremely important component of a gasoline-powered engine. In fact, this part--typically measuring no more than a couple of inches--is a literal window into an engine's performance. To those in the know, the spark plug is an indispensable diagnostic tool, providing insight into many potential engine problems.

At its core, the spark plug is designed for two purposes: it ignites the air and fuel mixture and it removes heat from the combustion chamber. Basically, spark plugs take in high voltage electricity on one end and create a spark on the other. That particular spark creates the combustion that actually powers the car. Considering their obvious importance when it comes to vehicle performance, it's important to keep a close eye on their condition and replace them whenever necessary.

At the end of the spark plug is a gap, which the electrical spark of the plug has to jump in order to ignite the fuel. Each time the plug fires (and this occurs hundreds of times every minute) a tiny portion of its metal tip is burnt off. Over time, this extends the gap that the spark has to jump, until it actually becomes too wide. If the spark plug isn't replaced, engines start to misfire and run poorly, drastically reducing engine performance and even making them more difficult to start.

At Pit Stop Auto Parts, we have one of the widest selections of spark plugs to choose from. No matter the brand or year of your vehicle, our extensive inventory is sure to contain a solution for your engine's needs. We pride ourselves on carrying only the finest car parts in the industry and our wide range of spark plugs come from leading brands such as Nology, MSD and NGK.