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

• Shell
• Thread Diameter12mm
• Thread Pitch1.25mm
• Seat TypeGasket
• Reach19mm (3/4")
• Hex Size5/8" (16mm)
• Terminal TypeSolid
• Overall HeightISO
• Gap.035" (0.9mm)

• Center Electrode
• MaterialPlatinum
• TypeStandard
• Size2.5mm
• ProjectionExtended Projection

• Ground Electrode
• MaterialNickel
• TypeMulti-Ground
• Quantity2

• Specifications
• ResistorYes
• Resistor Value5k Ohm
• Heat Range8
• FeaturesIntermittent Gap
• Torque SpecsCast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.

• Part Information
• BrandNGK/NTK
• Warranty60 Days
• Longevity50k Miles