Iridium Spark Plugs

Iridium IX®

The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® ideal for the performance enthusiast. Iridium’s extremely high melting point is perfectly suited to today’s high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.

  • Fine iridium tip ensures high durability and a consistently stable spark
  • Trivalent metal plating for superior anti-corrosion and anti-seizing properties
  • Outstanding acceleration, high fuel efficiency and durability

Laser Iridium

Laser Iridium is designed alongside OEMs to meet quality and durability standards for each manufacturer. Featuring high-grade alumina silicate ceramic and fine wire center electrodes, the Laser Series brings OE performance to every engine.


Third-Party & Online Marketplace Purchases

IMPORTANT: Niterra North America, Inc. does not sell NGK or NTK products directly through Amazon, eBay, or any other online marketplace. Products purchased from third-party sellers on these platforms are not covered under Niterra’s warranty program.

If a marketplace directs you to contact the manufacturer for warranty support, please note:

  • We cannot process these claims. We are unable to verify the authenticity, storage, or handling of products sold by third-party marketplace sellers.
  • Contact the seller directly through the platform where you made your purchase.
  • For full warranty coverage, purchase NGK and NTK products only through our authorized distributor network or national automotive parts retailers.