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
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Shell
- Thread Size: 14mm
- Thread Pitch: 1.25mm
- Seat Type: Tapered
- Resistor Value: 5K Ohm
- Reach: 18mm (.709")
- Hex Size: 5/8" (16mm)
- Terminal Type: Solid
- Overall Height: ISO
- Gap: .039" (1.0mm)
Center Electrode
- Material: Iridium
- Type: Fine Wire
- Size: 0.6mm
- Projection: Projected
Ground Electrode
- Material: Nickel
- Type: Standard
- Shape: Taper Cut
- Quantity: 1
Specifications
- Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft.
- Brand: NGK
- Heat Range: 8
- Longevity: 50k Miles
- Resistor: Yes