NGK Laser Iridium Spark Plug Box of 4 (ILFER7A8EG)

The iridium alloy center electrode on these NGK Laser Iridium spark plugs has an extremely high melting point, making it six times harder than platinum. This design choice is key to their durability and ability to maintain a stable spark, even in today's high-tech engines. NGK builds these plugs specifically for OE applications, meaning they're tested to the highest standards to ensure they perform reliably over time.

You'll also find a pure alumina silicate ceramic insulator, which offers solid strength and helps transfer heat away from the plug. For added protection, they feature trivalent metal plating that resists corrosion and prevents seizing, making them easier to remove later. Most of these plugs also include a platinum pad on the ground electrode, which helps them wear evenly in distributorless ignition systems. The copper core inside aids in heat removal, and triple seals are used to prevent any leaks.

This set includes four spark plugs, which is the correct amount for many common four-cylinder engines. If your vehicle originally came with fine wire iridium alloy plugs, these NGK Laser Iridium plugs are a well-made replacement option.