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    ACDelco Iridium Spark Plug

    Part # 41-105
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    Save $3 per Spark Plug by mail when you buy 4 or more ACDelco Professional Iridium Spark Plugs. See rebates page for details.
    • Product Details

      Part No. 41-105

      Warranty Details (7 YR REPLACEMENT IF DEFECTIVE)

      ACDelco Professional Iridium Spark Plugs are the high quality replacement ideal for many vehicles on the road today. They are our latest in spark plug technology and an exact replacement for your vehicle's original components. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

      Product Features:

      • Iridium offers excellent engine idle stability and smooth performance
      • Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
      • Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
      • One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
      • Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage

    • Specifications
      • Center Electrode Core Material:Copper
        Center Electrode Tip Material:Iridium
        Pre-Gap Size:0.043 in
        Ground Electrode Quantity:1
        Insulator Height:0.98 in
        Seat Type:Conical
        Reach:0.984 in
        Thread Diameter:0.551 in
        Resistor Type:Yes
        Ground Electrode Tip Design:Single Prong Electrode
        Ground Configuration:Single
        Ground Electrode Core Material:Nickel Alloy
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