8 Plugs of NGK Iridium IX Spark Plugs CR9EIX/3521

8 Plugs of NGK Iridium IX Spark Plugs CR9EIX/3521

You Are Purchasing 8 NGK Spark Plugs

• Shell
• Thread Diameter 10mm
• Thread Pitch 1.0mm
• Seat Type Gasket
• Reach 19mm (3/4")
• Hex Size 5/8" (16mm)
• Terminal Type Removable Nut
• Overall Height ISO
• Gap .031" (0.8mm)
• Center Electrode
• Material Iridium
• Type Fine Wire
• Size 0.6mm
• Projection Non-Projected
• Ground Electrode
• Material Nickel
• Type Standard
• Shape Taper Cut
• Quantity 1
• Specifications
• Resistor Yes
• Resistor Value 5k Ohm
• Heat Range 9
• Torque Specs Cast Iron: 7.2-10.8 lb. ft. Aluminum: 7.2-8.7 lb. ft
• Longevity 50k Miles

NGK IX Iridium Series plugs were designed specifically for the performance enthusiast. A 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