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    Spark Plugs

    Shop All Spark Plugs

     

    Featured Promotions

     

    Get a $32 Gift Card

    By mail when you buy 8 ACDelco Professional iridium spark plugs.

    Get a $24 Gift Card

    By mail when you buy 8 Autolite Iridium Ultra or Iridium XP spark plugs.

    QUALITY SPARK PLUGS, GREAT VALUE

     

    Iridium

     

    Up to 100k miles
    Factory spark plug on most new cars

    • Iridium tip is the hardest spark plug metal type & most resistant to erosion
    • Maintains the correct gap longer than any other metal type
    • Lower voltage requirement for spark to jump gap, improving efficiency
    • Fine tip design helps prevent fouling and improve performance
    Shop Now
    Shop Now

    Double Platinum

     

    60-80k miles
    Improved plug life over Platinum

    • Platinum on both the center and ground electrodes
    • Double Platinum recommended for waste spark ignition systems
    • Fine wire design helps prevent fouling and improves performance
    Shop Now
    Shop Now

    Platinum

     

    Lasts up to
    60k miles

    • Platinum on center electrode only
    • Platinum is a harder metal that resists oxidation, arc erosion, and maintains gap longer than copper
    Shop Now
    Shop Now

    Copper

     

    Lasts Less than
    30k miles

    • Copper plugs have a copper core and nickel alloy electrode tip
    • Nickel is the softest spark plug metal type, which is why it wears out quicker
    • Requires more voltage to fire than a precious metal plug because the electrode tips cannot be made as fine as Platinum or Iridium
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    How-To Videos

     

    Chris Fix — Ultimate Guide to Spark Plugs

    Popular DIYer Chris Fix shows you which spark plugs are the best choice for your vehicle and how to easily install them.

    What’s the Difference Between Spark Plug Types?

    Learn more about the different types of spark plugs, the pros and cons of each, and why you may need one over the other.

    More Videos

     

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    Spark Plugs

    Get the spark needed to keep your engine running.

    Wires & Boots

    Use the right wires to get the best performance.

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    When you buy 4 or more Carquest ignition coils.

    Tune-Up Tools

    Get common tools needed to complete a proper tune-up.

    Dielectric Grease & Anti-seize

    Seal out moisture and help prevent misfires.

     

    Helpful Articles

     
     

    What You Need to Know About Engine Misfires

    An engine misfire can be a temporary or continuous problem that seems like a mystery. Learn about the different components of misfires and possible solutions.

    Read More
     
     

    Understanding Different Spark Plugs

    With multiple options, it’s difficult to know which spark plug is right for your vehicle. Learn about your options and an easy way to pick the right one.

    Read More
     
     

    Step By Step – How to Change Your Spark Plugs

    Spark plugs are one of the easiest parts to replace in most vehicles, making it a job you can still do on modern high-tech vehicles and older cars alike.

    Read More
     
     

    Guide to Understanding Spark Plug Heat Ranges

    There's still some confusion about spark plug types and heat ranges. Let's clear up some of that confusion.

    Read More
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    IRIDIUM

    Lasts up to 100k miles.
    Factory spark plug on most new cars.

     
    Iridium tip is the hardest spark plug metal type & most resistant to erosion
    Maintains the correct gap longer than any other metal type
    Lower voltage requirement for spark to jump gap, improving efficiency
    Fine tip design helps prevent fouling and improve performance
     
    Shop Now

    Double Platinum

    Lasts between 60-80k miles.
    Improved plug life over Platinum.

     
    Platinum on both the center and ground electrodes
    Double Platinum recommended for waste spark ignition systems
    Fine wire design helps prevent fouling and improves performance
     
    Shop Now

    PLATINUM

    Lasts up to 60k miles.

     
    Platinum on center electrode only
    Platinum is a harder metal that resists oxidation, arc erosion, and maintains gap longer than copper
     
    Shop Now

    COPPER

    Lasts Less than 30k miles.

     
    Copper plugs have a copper core and nickel alloy electrode tip
    Nickel is the softest spark plug metal type, which is why it wears out quicker
    Requires more voltage to fire than a precious metal plug because the electrode tips cannot be made as fine as Platinum or Iridium
     
    Shop Now
     
     
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