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Not all spark plugs are created equal. Automotive technology has come a long way, and ignition technology is no exception. You'll find spark plugs and pulse plugs out there ranging from $2 to upwards of $100, and their features can be just as confusing. While "a spark plug is just a spark plug" is a phrase we hear often, you can see below how much is really involved. At SparkPlugs.com, we make sense of the madness. We'll break down the anatomy of a spark plug and guide you through the technology to help you find the best selection for your vehicle and its needs.
Spark plug construction consists of the following parts:
Pulse plugs are made with the same shell as a spark plug, but have a capacitor, or pulse circuit inside the shell instead of a metal core.