Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
NGK Ruthenium HX spark plug set (box of 4) uses patented Ruthenium tip technology to offer high ignitability and industry-leading durability for modern engines. Double fine electrode (DFE) designs concentrate spark energy for more complete combustion, improving throttle response, idle smoothness and cold starts. Features include a 0.4mm ruthenium fine-wire center electrode and platinum ground wire, with NGK’s ceramic and plating treatments for reliable OE-style service life.
NGK Ruthenium HX Spark Plug Box of 4 (LKR6BHX-E)
