NGK IX Iridium -TR7IX- ngk3690

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 Diameter: 14 mm
Shell Thread Pitch: 1.25 mm
Shell Seat Type: Tapered
Shell Reach: 18 mm(0.709 in)
Shell Hex Size: 5/8 in(16 mm)
Shell Terminal Type: Solid
Shell Overall Height: ISO
Shell Gap: 0.039 in(1.0 mm)
Center Electrode Material: Iridium
Center Electrode Type: Fine Wire
Center Electrode Size: 0.6 mm
Center Electrode Projection: Projected
Ground Electrode Material: Nickel
Ground Electrode Type: Standard
Ground Electrode Shape: Taper Cut
Ground Electrode Quantity: 1
Resistor: Yes
Resistor Value: 5 kohm
Heat Range: 7
Torque Specs: Cast Iron: 10.8-18 lb-ft, Aluminum: 7.2-14.5 lb-ft
Longevity: 50 kmile
Fitment: Automotive
Warranty: 60 days