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NGK Standard spark plugs offer proven, reliable ignition performance built to OE standards. The high-grade alumina ceramic insulator increases strength and heat transfer, while a 98% copper core supports heat dissipation. Corrugated ribs and triple seals prevent flashover and leakage, and trivalent metal plating resists corrosion and seizing to ease installation. These plugs serve as durable replacements for conventional systems.
NGK Standard Spark Plug Box of 4 (ZFR5D-11)
