Spark Plugs

Your Nissan vehicle won't start without ignition. That only comes about thanks to your spark plugs, which produce the quick flash of electricity that kindles the air-and-fuel mixture inside your engine's combustion chamber.

That flash is fired across a gap between two leads in the spark plug. That gap is precisely calibrated to create the ideal spark needed for ignition, leading to the pistons pumping and the crankshaft turning.

Spark plugs can become less effective over time, though. Whether they've become corroded or the gap between leads has grown too wide, that can lead to losing power – or worse.

How to Spot Failing Spark Plugs

Signs of trouble include:

• Engine misfires
• Uneven engine idling
• Reduced fuel efficiency
• The "Check Engine" light comes on
• You have problems starting your vehicle

Buy Genuine OEM Spark Plugs Online

Some mistake these symptoms for an alternator issue, though. You'll first want to confirm that your spark plugs are the source of the problem. If you do need a new set, make sure that you choose the best spark plugs for your vehicle. The ones your manufacturer makes are designed to work with your model and engine, ensuring the dependable compatibility that you want and need. Find yours in our online auto parts catalog. Buy now and we'll ship your order directly to your front door!