NGK - Laser Iridium Spark Plug for Mariner, Mercury, Nissan, Tohatsu (IZFR5J)

• Laser welded Platinum or Iridium center electrode tip
• Platinum disc welded to backside of ground electrode provides long life
• Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties
• Faster starts and quicker acceleration
• Better fuel economy and lower emissions
• Best spark plug available in their category
• Original Equipment Manufacturer approved design