Autolite Iridium Ultra Laser-Welded Spark Plugs, 4 Pack (AI5863)

The Autolite Iridium Ultra Spark Plug combines laser-welded finewire iridium centerwire tip technology and high-alumina multi-rib ceramic insulators to deliver long-lasting performance and improved ignitability. Each plug features a nickel-plated shell, tapered ground electrode, 0.5 mm laser-welded centerwire and an iridium-enhanced platinum alloy pad to limit gap erosion and maintain consistent performance. Engineered for maximum acceleration and fuel efficiency, these plugs resist corrosion and fouling, offering extended change intervals of 100,000+ miles. This 4-pack (AI5863) is designed for universal fit across cars, SUVs, trucks and vans and includes a limited lifetime manufacturer warranty.

• EXTENDED CHANGE INTERVAL: The Autolite Iridium Ultra automotive replacement spark plug is engineered to last for over 100,000+ miles making it one of the most durable spark plugs on the market today
• FUEL EFFICIENCY: These iridium spark plugs utilize an ultra 0.5mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
• MAXIMUM PERFORMANCE: The Autolite Iridium Ultra spark plug provides maximum acceleration as its noble metals resist corrosion better which prevents fouling and in turn allows for quicker acceleration
• AUOTLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs
• CONSTRUCTION: Every Iridium Ultra plug is manufactured with high alumina multi-rib ceramic insulator to prevent flash-over, a nickel plated shell, tapered ground electrode for enhanced ignitability, 0.5mm laser welded centerwire, and iridium enhanced platinum alloy pad which limits gap erosion