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The NGK Ruthenium HX spark plug features patented Ruthenium tip technology for highest ignitability and long life in newer engines. The Double Fine Electrode design focuses spark energy for more complete combustion, improving throttle response, idle smoothness and cold starting. NGK pairs this tip technology with an alumina ceramic insulator, corrugated ribs to prevent flashover, and trivalent plating to resist corrosion.
NGK Ruthenium HX Spark Plug Box of 4 (FR5AHX-E)
