NGK N7397 Spark Plug TR51X Iridium IX Spark Plug, Set of 8

NGK Iridium IX spark plugs are designed specifically for the performance enthusiast. Iridium IX spark plugs offer extreme ignitibility, improved throttle response and superior anti-fouling. The fine-wire iridium center electrode ensures high durability and a consistently stable spark. A special taper-cut ground electrode shape allows more area for faster flame expansion. Iridium alloy has an extremely high melting point, perfect for today's high-performance engines. Trivalent metal plating provides superior anti-corrosion and anti-seizing properties.

• Ground Configuration: Copper Core
• Center Electrode Tip Material: Iridium
• Hex Size: 5/8 Inch
• Insulator height: 53mm
• Set of 8

Spark Plug Application Chart