Iridium XP
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Autolite® Iridium XP Spark Plugs

When you're passionate about performance, you need a technologically advanced plug. Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability* and a more focused ignition for better overall ignitability** providing optimum performance. Now with a lifetime limited warranty.

*Compared to 0.8mm finewire, multi-electrode design and standard plugs
**Compared to average of other premium brands .

  • Better durability* and a more focused ignition for optimum performance.
  • Iridium enhanced 0.6mm finewire design for optimal durability and performance
  • Platinum protected ground wire for maximum efficiency in all ignition types including DIS systems
  • V-trimmed ground electrode for improved ignitability
  • Limited lifetime warranty
  • *Compared to 0.8mm finewire, multi-electrode design and standard plugs

Click on the link below to check out our Spark Plug Metallurgy Comparison Chart.

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Autolite highly recommends that you consult with your vehicle’s owner’s manual for any specific instructions for changing the spark plugs. Engines can vary widely by make and model. These instructions should be considered for general guidance only.
Replacing spark plugs can be a simple job, if you take things one step at a time. Given a basic understanding of mechanical matters, here's a guide to the proper procedures in changing spark plugs.

  • Iridium-enhanced center electrode
  • Proprietary, platinum sidewire technology
  • 0.6-mm finewire design
  • Nickel-plated shell
A quick reference to Iridium XP's part numbers are listed below. Autolite provides OE-equivalent quality and performance to over 95% vehicle applications. If you don't see the part number for your vehicle, don't fret! Our Parts Finder allows quick access to the right part for your engine.
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