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The NGK Ruthenium HX spark plug employs patented ruthenium tip technology and a Double Fine Electrode design to concentrate spark energy, improving combustion across a wider range of air-fuel ratios. That yields quicker throttle response, smoother idle and improved cold starts for newer engines demanding high ignitability. Alumina ceramic insulation and corrosion-resistant plating support durability and consistent performance.
NGK Ruthenium HX Spark Plug Box of 4 (LFER7BHX)
