Spark Plugs

Your Nissan vehicle needs ignition in order to start. That happens thanks to the spark plugs, which produce an initial flash of electricity that ignites the air-and-fuel mixture inside your engine.

How Your Spark Plugs Work

it all starts with you turning the ignition key or pressing the "Start" button. That causes the starter motor, starter solenoid, and ignition coil to team with the battery to create a small electrical charge. That charge is capture in the spark plugs' leads, firing across a precisely calibrated gap to help generate combustion.

Spark plugs don't last forever, though. They may have become corroded with age, or the gap may have widened too far to produce the effective spark needed for ignition. They may even break, which is harmful to the engine cylinders. Whatever the reason, you'll need to replace them ASAP to continue driving without issues.

How to Spot Bad Spark Plugs

Signs of failure include:

• Misfiring engine
• Rough idling
• Worsening fuel economy
• Difficulty starting
• The "Check Engine" dashboard light comes on

Buy Genuine Nissan Spark Plugs Online

If you're not experiencing any of these problems, check your owner's manual to see when you need to replace your spark plugs. Going over their lifespan rating can cause engine issues, so it's best to replace them earlier rather than later. You can find your next set right here in our online auto parts catalog, in stock and ready to be shipped to your front door. Buy now and save!