PRODUCT INFORMATION

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability 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. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

NGK products are covered under a separate manufacturer's warranty.

Should you be concerned about the fitment or performance of a product, or otherwise believe it may have a manufacturing defect, please reach out to our support team.

We can provide installation support, troubleshooting advice, and assistance in identifying any potential manufacturing defects. If we suspect that your product does have a defect, our team will serve as a point of contact with the manufacture to help arrange a warranty inspection and to help facilitate the manufacture's warranty process.