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The NGK Iridium spark plug box of four pairs iridium center-tip durability with OE-style performance for consistent starts and longevity. Fine-wire iridium electrodes resist wear at high temperatures while high-grade ceramic insulators and a copper core assist heat transfer. Trivalent metal plating helps prevent corrosion and seizing and triple seals guard against leakage, offering dependable ignition and service life suitable for modern high-tech engines.
NGK Iridium Spark Plug Box of 4 (IZTR5B11)
