NGK 2309 Iridium IX Spark Plugs (Box of 4)

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

Specifications 

• Thread Diameter - 14mm
• Thread Pitch- 1.25mm
• Seat Typen - Gasket
• Reach - 26.5mm (1.04")
• Hex Size - 5/8" (16mm)
• Terminal Type - Solid
• Overall Height - ISO
• Gap - .031" (0.8mm)