NGK Laser Iridium/Platinum Spark Plug Box of 4 (ILTR7E9)

When it's time to replace the spark plugs on your 2014 or 2015 Cadillac XTS, NGK's Laser Iridium plugs are a solid choice. These are designed as direct OE replacements, meaning they're built to the same standards as the plugs that came from the factory, ensuring your engine runs smoothly and efficiently.

The center electrode on these NGK plugs features an iridium alloy tip, which is significantly harder and more durable than platinum. This advanced material helps maintain a consistent spark over a longer period, contributing to better fuel combustion and overall engine performance. The pure alumina silicate ceramic insulator provides excellent strength and helps transfer heat away from the plug, preventing overheating. Plus, the trivalent metal plating on the exterior helps prevent corrosion and makes them easier to remove down the road.

This box includes four spark plugs, which is exactly what you'll need for your XTS. They feature a platinum pad on the ground electrode for even wear, which is especially beneficial in modern distributorless ignition systems. If your XTS originally came with fine wire iridium plugs, these are the correct replacement to keep your engine running at its best.