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The NGK Racing spark plug is tailored for endurance in the most demanding racing environments. Special electrode configurations and robust insulator design deliver reliable ignitability across wide heat ranges, while copper cores and superior insulation manage thermal loads. Trivalent plating improves installation reliability. These plugs are intended for competitive engines requiring hard-wearing, high-ignition components.
NGK Racing Spark Plug Box of 4 (R6254K-105)
