The NGK Laser Iridium spark plug combines an iridium-tipped fine-wire center electrode with high-grade alumina ceramic and a copper core to deliver long life and consistent spark. Iridium is far harder than platinum and resists wear, while many Laser Iridium plugs include a platinum pad on the ground electrode for even wear in distributorless systems. The design supports reliable starts, stable idling and durability under high-temperature conditions.
NGK Laser Iridium Spark Plug Box of 4 (ILTR6F9)