Multi-Ground Electrodes Improve Ignition Capabilities and are Less Sensitive to Increased Voltage Requirements Due to Gap Growth.

Designed to Specific Manufacturer Ignition Requirements, NGKs Multi-Ground Plugs Maintain All the Features of Their Standard Plugs, Including:

Corrugated Ribs to Prevent Flashover

Pure Alumina Silicate Ceramic Insulator, Providing Superior Strength and Better Heat Transfer

Copper Core to Aid in Heat Removal

Triple Seals to Prevent Leakag