NGK Multi-Ground standard spark plugs expand on NGK’s proven OE design with multiple ground electrodes to improve ignition robustness and tolerate gap growth. They retain high-grade alumina ceramic insulators, a solid copper core for heat dissipation, corrugated ribs to prevent flashover, and corrosion-resistant plating for easier installation and removal. These plugs are intended as reliable manufacturer-specified replacements.
NGK Multi-Ground Spark Plug Box of 10) LMAR9E-J