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 Diameter10mm
Thread Pitch1.0mm
Seat TypeGasket
Reach26.5mm (1.04")
Hex Size9/16" (14mm)
Terminal TypeSolid
Overall HeightISO
Gap.031" (0.8mm)
Center Electrode
MaterialNickel
TypeStandard
Size2.5mm
ProjectionProjected
Ground Electrode
MaterialNickel
TypeMulti-Ground
Quantity2
Specifications
ResistorYes
Resistor Value5k Ohm
Heat Range8
Torque SpecsCast Iron: 7.2-10.8 lb. ft. Aluminum: 7.2-8.7 lb. ft.
