The Best GM Spark Plugs

Spark plugs combust the mix of fuel and oxygen in your engine. The process is called "spark ignition." It starts when you turn your key in your ignition lock cylinder. Your ignition switch triggers, and your car battery, ignition coil, starter solenoid, and starter motor work to create a small electrical charge. The plugs' leads capture and use it for ignition. Each of your engine pistons then gets pumping and your crankshaft begins turning.

Spark plugs don't last forever, though. Sometimes, their leads corrode or widen, and they can't capture sparks as well. If your engine starts misfiring or it fails, it's usually a spark plug problem. Broken plugs, though, can seriously damage an engine's cylinders. In any of these cases, inspect to figure out what's going on, and if necessary, change your spark plugs. The ones GM makes for your vehicle are durable enough to last for millions of ignitions, usually up to 100,000 miles. Just don't let them go past your owner's manual's recommended mileage limits.

Fix Your GM Engine | Install Genuine OEM Spark Plugs

Whatever GM brand and model you drive, you shouldn't trust it to anything other than genuine spark plugs. After all, your OEM designs them compatible with its vehicles from the get-go. You can order them right here online at our auto parts store. Just browse our catalog by model to ensure you're getting the right fit. Buy now, and we'll deliver to your door right away.