OE Copper core spark plug has three ground electrodes and provides broader heat range to resist pre-ignition and fouling. The nickel-plated rolled threads is used for complete anti-seize and corrosion protection, and the angled, ribbed insulator design prevents misfire due to flash-over. Product Features:OE Copper spark plug with three ground electrodesCopper core provides broader heat range to resist pre-ignition and foulingNickel-plated rolled threads is used for complete anti-seize and corrosion protectionAngled, ribbed insulator design prevents misfire due to flash-over
