NGK Laser Iridium spark plug combines longevity with high ignitability for OE-style applications. A fine iridium-tipped center electrode and, on many applications, a platinum pad on the ground electrode provide even wear and a consistently stable spark. High-grade alumina ceramic and a copper core aid heat control and reliable starting, while trivalent metal plating reduces corrosion and eases installation and removal.
NGK Laser Iridium Spark Plug Box of 4 (IFR5J11)