NGK IRIDIUM SPARK PLUGS 3690 TR7IX

NGK IRIDIUM IX SPARK PLUG – 3690 – TR7IX

NGK Iridium IX plugs offer extreme ignitibility and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling, and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines.