NGK Iridium/Platinum Spark Plug Box of 4 (ILKR7E6)

When it's time to replace the spark plugs on your 2009 or 2010 Mitsubishi Lancer, NGK's Laser Iridium plugs are a solid choice. These are designed to be a direct OE replacement, meaning they'll perform just like the original plugs that came with your car, but with some updated materials for better performance and a longer life.

The center electrode on these plugs is tipped with iridium, which is a very hard metal that can handle high temperatures and resist wear much better than standard platinum. This helps ensure a consistent spark over time. The insulator is made from pure alumina silicate ceramic, which is strong and helps transfer heat away from the plug, preventing it from getting too hot. You'll also find a platinum pad on the ground electrode, which helps them wear evenly, especially in modern ignition systems. The copper core inside also aids in heat removal, and the trivalent metal plating on the outside helps prevent corrosion and makes them easier to remove down the road.

This set comes with four plugs, which is exactly what you need for your Lancer. They're a popular option because they offer a good balance of durability and consistent performance for everyday driving.