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The NGK Iridium Long Life spark plug box of four combines iridium-tip durability with OE-level longevity for reliable starting and service life. Fine-wire iridium center electrodes resist wear and maintain stable sparks while high-grade alumina ceramic and a copper core aid heat dissipation. Trivalent metal plating and triple seals protect against corrosion and leakage, making these plugs suitable as durable OE or replacement options where iridium tips are recommended.
NGK Iridium Long Life Spark Plug Box of 4 (IR6F-13)
