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The NGK Ruthenium HX spark plug box of 4 brings advanced OE-grade tip technology for high ignitability in modern engines. Patented ruthenium center electrodes and DFE/PSPE tip designs concentrate spark energy for more complete fuel burn, improving throttle response, idle quality and cold starts. The durable ruthenium tip and premium ceramic insulator offer industry-leading life expectancy while trivalent plating and copper core aid installation and heat removal.
NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S)
