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The Spark Plug Serious Enthusiasts Rely On.

Designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.

Fine Iridium tip ensures high durability and a consistently stable spark. Iridium alloy has extremely high melting point, perfect for todays high-tech, high-performance engines.

“Trivalent Metal Plating” has superior anti-corrosion and anti-seizing properties.

Outstanding acceleration, high fuel efficiency and durability.

Ultimate design, technology and performance.

Features:

• Resistor: Yes
• Manufacturer Heat Range: 5
• Electrode Core Material: Copper
• Electrode Tip Material: Iridium
• Insulator Type: Projected
• Spark Plug Thread Size: 14mm
• Spark Plug Reach: 25mm
• Spark Plug Seat Style: Tapered
• Wrench Diameter: 5/8 in.
• NGK Part Number: LZTR5AIX-13