NGK Laser Iridium Spark Plug (ILTR5D) - Box of 4 - Select 2007-2020 Buick, Chevy, GMC

Fits select 2007-2020 Buick, Cadillac, Chevrolet, GMC, Pontiac, Saab, and Saturn models.

NGK Laser Iridium spark plugs are engineered for OE applications to provide the best possible balance of ignition performance and service life. The iridium-tipped center electrode is six times harder than platinum, ensuring exceptional durability and resistance to spark erosion. For even wear in modern distributorless ignition systems, many of these plugs feature a laser-welded platinum pad on the ground electrode.

Constructed with a 98% pure copper core and a high-grade pure alumina silicate ceramic insulator, these plugs offer superior heat dissipation and electrical insulation. The trivalent metal plating provides robust anti-corrosion and anti-seizing properties, while triple gaskets prevent combustion gas leakage past the shell.

• Manufacturer Part Number: ILTR5D
• Box of 4 spark plugs
• Laser-welded iridium center electrode for consistent spark
• Platinum-tipped ground electrode for uniform wear and longevity
• Trivalent metal plating for superior corrosion resistance
• Pure alumina silicate ceramic insulator for efficient heat transfer
• Triple seals prevent compression leakage