NGK Iridium IX Spark Plug – DCPR8EIX-S 97181
From the high-tech Ruthenium HX™ to the industry standard OE-style spark plugs, NGK drives the future of spark plug engineering. MODELIridium Ix. The iridium electrode is 25% smaller than a platinum electrode, and it’s just 1/4 the size of a conventional nickel electrode.