Description
NGK IX Iridium Series plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high-tech, high performance engines.
Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
Corrugated ribs prevent flashover
Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
Copper core aids in heat removal
Triple seals prevent leakage
Shell
Thread Diameter14mm
Thread Pitch1.25mm
Seat TypeGasket
Reach19mm (3/4")
Hex Size5/8" (16mm)
Terminal TypeSolid
Overall HeightISO
Gap.043" (1.1mm)
Center Electrode
MaterialIridium
TypeFine Wire
Size0.6mm
ProjectionProjected
Ground Electrode
MaterialNickel
TypeStandard
ShapeTaper Cut
Quantity1
Specifications
ResistorYes
Resistor Value5k Ohm
Heat Range7
Torque SpecsCast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
SKU: NGK 6988
Suits:
S14/15 Silvia/200SX - SR20DET
S13 Silvia/180SX - SR20DET
R33/34 Skyline RB25DET
R34 Skyline RB25DET Neo
WRX & STI EJ20 V1-6
WRX & STI EJ20 V7-9
Toyota Supra 2JZGTE
Toyota Celica/MR2 3SGTE
