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NGK Standard nickel spark plugs (box of 4, MR9K-9) are OE-style replacements engineered for reliable day-to-day performance. They feature a solid copper core for heat dissipation, high-grade alumina silicate ceramic insulators, triple gasket sealing to prevent combustion leakage, and trivalent metal plating for anti-corrosion and easy removal. Treated plating and corrugated ribs help prevent flashover.
NGK Nickel Spark Plug Box of 4 (MR9K-9)
