NGK 2668 IX Iridium Plug; 4 Per Box

NGK's 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.
• Thread Size - 14 mm.
• Hex Size - 5/8 in. (16 mm.).
• Reach - 19 mm. (3/4 in. ).
• Seat Type - Gasket.
• Gap - 0.032 in. (0.8 mm.).
• Heat Range - 8.
• Terminal Type - Solid.
• Resistor - Yes.
• Overall Height - ISO.
• Thread Pitch - 1.25 mm.
• Center Electrode.
• 4 per box.
• Type - Fine Wire.
• Center Electrode Material - Iridium.
• Center Electrode Size - 0.6 mm.
• Center Electrode Projection - Projected.
• Ground Electrode Type - Taper Cut.
• Ground Electrode Material - Nickel.