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    NGK Racing Spark Plug (R6254K-105)

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    Exact Fit May Not Fit Doesn't Fit for your

    Save $2 per plug on Autolite Double Platinum spark plugs by mail. See rebates page for details.
    • Product Details

      Part No. 4076

      Warranty Details (60 DAY REPLACEMENT IF DEFECTIVE)

      With an exceptional pedigree of proven race results, NGK Racing Spark Plugs are specially designed plugs for extreme conditions. Intended for racing use only, racing spark plugs are designed with extreme use in mind as some feature special ground electrode and center electrode designs to withstand grueling racing conditions. Racing plugs are available in colder heat ranges for high performance applications.

      Product Features:

      • Center Electrode Design -special center electrode configurations and designs to ensure durability and ignitibility; some use precious metals.
      • Many different ground electrode configurations to ensure durability.
      • Racing plugs are available in colder heat ranges for high performance applications.
      • Proven race results

    • Specifications
      • Center Electrode Core Material:Copper Core
        Center Electrode Tip Material:Nickel
        Electrode Core Material:nickel
        Electrode Tip Material:nickel
        Gap Size:0.032 in
        Ground Configuration:Slant
        Ground Electrode Core Material:Nickel Core
        Ground Electrode Quantity:1
        Ground Electrode Tip Design:Pin Type
        Ground Strap Quantity:1
        Hex Size:13/16 in
        Manufacturer Heat Range:10.5
        Reach:19 mm
        Resistor:No
        Seat Type:Gasket
        Shorty Spark Plug:No
        Thread Diameter:14 mm
        Tip Configuration:Solid
        Type:Nickel Alloy
        Wrench Diameter:13/16 in
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