OEM GM Spark Plugs Online

Spark plugs are the small devices that give the electrical charge that kicks off and runs your car's engine. A main part of the combustion process that is responsible for running your car, truck or SUV.

How Do my Car Spark Plugs Work?

A spark plug is a crucial component of a car's ignition system, responsible for delivering the spark that ignites the fuel in the combustion chamber. It is typically made up of a metal shell, a ceramic insulator, a center electrode, and a ground electrode.

The metal shell is usually made of steel or nickel, while the insulator is made of ceramic to withstand the high temperatures and electrical stress of the spark. The center electrode is made of a high-temperature-resistant metal, such as platinum or iridium, while the ground electrode is made of nickel or platinum. There is one spark plug for every cylinder chamber of your engine, and it feeds spark to the combination of fuel and oxygen.

When to Replace my Car's Old Spark Plugs?

Spark plugs can last beyond 100,000 miles, but this is the mile marker when you should have them replaced. 80,000 miles is when you may notice that they are showing signs of potential failure. If you have trouble starting your engine or are experiencing frequent engine misfires, seek replacement spark plugs for your engine to keep it running strongly.

Save Money on OEM Replacement Spark Plugs by GM

Spark plugs can cost up to $20 a piece. However, drivers shopping online for genuine GM parts can save up to 35% off the MSRP at Bob Johnson Chevy. We slash prices so that you can save money and time. Plus, you can pair with your model trim easily!

Did we mention that we ship auto parts nationwide? Have your new spark plugs at your door fast and get your vehicle back in working order quick. If you have any questions, feel free to reach out on our contact page.