NGK Spark Plugs Spark Plug, Iridium IX, 14mm Thread, 0.708" Reach, Tapered Seat, Resistor, Each (Stocking Number : 3690)

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

Product Specifications :

Shell

• Thread Diameter : 14mm
• Thread Pitch : 1.25mm
• Seat Type : Tapered
• 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

• Resistor : Yes
• Resistor Value : 5k Ohm
• Heat Range : 7
• Torque Specs : Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft.