With over 85 years in spark plug manufacturing, Autolite® is the most trusted name in the industry. We offer spark plugs for your vehicle, motorcycle, lawn mower, and more.

Trust Autolite for high-quality, performance-boosting spark plugs. Explore our product range, each engineered for specialized applications.

From platinum to copper and iridium spark plugs, Autolite offers OE quality and performance for all car makes and models.

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Autolite Copper Spark Plugs guarantee to deliver quick starts, good fuel economy and smooth acceleration. Find vehicle compatibility, installation guides, and technical specifications for Autolite …

Autolite Iridium XP guarantees optimum performance equal to OE designed plugs. Find vehicle compatibility, installation guides, and technical specifications for Autolite XP5263 Iridium XP Spark Plug.

Apr 3, 2024 · Understanding and choosing the correct heat range for your spark plugs is important for a healthy engine.

Designed with a cut-back ground electrode, anti-corrosive nickel plating, and large ground electrode for better heat transfer, Autolite ® racing spark plugs are the obvious choice for all types of professional …

Gap new plugs as recommended in owner's manual or Autolite® Spark Plug Catalog. Use a gapping tool gauge to measure the gap between the center and ground electrode.

Gather needed tools and parts - a set of Autolite spark plugs, a ratchet, a spark plug socket (make sure you have the right size), extensions, a gapping tool, and dielectric grease.