Autolite Iridium Ultra® Spark Plugs
When looking for a spark plug replacement to optimize the performance for the most technologically advanced engines, you need the most technologically advanced spark plug. The Autolite Iridium Ultra Spark Plug utilizes a finewire iridium centerwire tip design with laser-welded technology for optimal performance, durability*, ignitability** and fuel efficiency. These iridium spark plugs are now available with a lifetime limited warranty.
*Compared to 0.8 mm finewire, multi-electrode design and standard spark plugs.
**Compared to average of other premium brands.