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    Autolite Platinum High Thread Spark Plug

    Part # HT1
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    Save $10 after mail-in rebate when you buy 4 or more Denso Iridium Spark Plugs. See rebates page for details.
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    • Product Details

      Part No. HT1

      Warranty Details (4 YR REPLACEMENT IF DEFECTIVE)

      Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

      Product Features:

      • High nickel alloy side electrode maintains precise gap
      • Full platinum tip assures virtually no gap erosion for long life
      • Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)

    • Specifications
      • Electrode Tip Material:Platinum
        Reach:1 in
        Resistor:Suppressor
        Seat Type:Tapered
        Thread Diameter:16 mm
        Tip Configuration:Power
        Wrench Diameter:9/16 in
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    Disclaimer: We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.