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

Designed to Specific Manufacturer Ignition Requirements, NGK's 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 Leakage
• Thread Size: 12mm
• Thread Pitch: 1.25mm
• Seat Type: Gasket
• Resistor Value: 5K Ohm
• Reach: 26.5mm (1.04")
• Hex Size: 5/8" (16mm)
• Terminal Type: Solid
• Overall Height: ISO
• Gap: .035" (0.9mm)