NGK Iridium Laser Spark Plug Box of 4 (SILZKAR7B11)

The iridium alloy center electrode in these NGK spark plugs has an extremely high melting point, making it well-suited for today's advanced engines. These are NGK Laser Iridium High Ignitability spark plugs, designed to give you a great mix of performance and how long they last. They're built to meet the same high standards as the original equipment your vehicle came with, so you know you're getting a solid replacement. The pure alumina silicate ceramic insulator helps with heat transfer and offers good strength, while the trivalent metal plating helps prevent corrosion and seizing. You'll find these fit a range of vehicles, including models like the Subaru Forester, Impreza, and Legacy.

NGK uses a fine wire center electrode that ensures durability and a stable spark, which is important for consistent engine performance. The iridium alloy is six times harder than platinum, offering excellent wear resistance. Plus, the copper core helps manage heat, and triple seals are used to prevent any leaks. These plugs are a popular choice for vehicles originally equipped with OE iridium plugs, providing improved spark performance and reliable starts.