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NGK Ruthenium-HX Spark Plugs

Ruthenium HX™ spark plugs are the ultimate high ignitability spark plugs from NGK. Modern engines demand spark plugs that provide top performance while enduring the most severe conditions.

  • Ruthenium HX™ contains all the features that enthusiasts expect from NGK spark plugs, including a high grade alumina silicate ceramic, trivalent plated, cold rolled threads, and the highest quality manufacturing and testing.

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