NGK Laser Iridium Spark Plug Box of 4 (ILFR6A)

NGK Laser Iridium spark plugs are a solid option for your Mercedes-Benz, offering a good balance of performance and how long they last. These are actual OE replacements, meaning they meet the same standards as the plugs that came with your car from the factory. The fine wire center electrode is made from an iridium alloy, which has a very high melting point and is six times harder than platinum, helping to ensure a stable spark and durability over time. This is especially important for today's high-tech engines.

The pure alumina silicate ceramic insulator helps with heat transfer and provides strength, while the trivalent metal plating on the exterior helps prevent corrosion and seizing, making them easier to remove later. For vehicles with distributorless ignition systems, most of these plugs also feature a platinum pad on the ground electrode for more even wear. The copper core inside helps manage heat, and triple seals are used to prevent any leaks.

This box includes four spark plugs, which is what many vehicles need for a full set. They are recommended for vehicles that originally came with fine wire iridium alloy plugs.