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NGK Racing Spark Plug R7420-10 (Box of 4)

$491.92

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NGK Racing Spark Plug R7420-10 (Box of 4)

$491.92

$491.92

NGK Racing spark plugs are engineered for high-stress competition environments where extreme cylinder pressures and temperatures demand superior thermal management and electrical durability. Designed for specialized racing applications, these plugs feature a technical configuration that ensures consistent ignitability and survival under grueling track conditions.

  • Thermal Performance: A solid copper core aids in rapid heat removal to prevent pre-ignition and electrode damage.
  • Durability: Pure alumina silicate ceramic insulator provides high dielectric strength and optimized heat transfer.
  • Reliable Seals: Triple gasket seals prevent combustion gas leakage, maintaining consistent cylinder compression.
  • Anti-Corrosion: Trivalent metal plating provides superior anti-seize and anti-corrosion properties, ensuring easier installation and removal.
  • Advanced Design: Corrugated ribs prevent electrical flashover, while specialized insulator nose configurations improve throttle response.
  • Specifications: Manufacturer Part Number R7420-10; includes a box of 4 plugs.

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