The NGK Ruthenium HX spark plug uses patented Ruthenium tip technology to deliver high ignitability and extended life for modern engines. Its Double Fine Electrode (DFE) design concentrates spark energy for more complete combustion, improving throttle response, idle quality and cold starts. Built with NGK’s alumina ceramic and corrosion-resistant trivalent plating, Ruthenium HX is intended for newer engines that demand advanced ignition performance.
NGK Ruthenium HX Spark Plug Box of 4 (LKAR7AHX-S)