The NGK Ruthenium HX High Ignitability spark plug brings advanced OE ruthenium tip technology to newer engines that need exceptional ignitability and extended life. It’s formulated to deliver improved starting, throttle response and idle stability. Patented Ruthenium designs and DFE-type electrodes focus spark energy for a more complete burn. A 0.4mm ruthenium center and 0.8mm platinum ground electrode, plus alumina ceramic insulation, corrugated ribs and trivalent plating, reduce flashover and aid heat control.
NGK Ruthenium HX Spark Plug Box of 4 (FR6BHX-S)