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    ACDelco Iridium Spark Plug

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    Warranty Information
    • Product Details

      Part No. 41-110

      Warranty Details (7 YR REPLACEMENT IF DEFECTIVE)

      ACDelco GM Original Equipment Iridium Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

      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
      • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
      • GM engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
      • Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
      • GM regularly updates production and service part designs to integrate new materials and technologies

    • Specifications
      • Center Electrode Core Material:Nickel Alloy
        Center Electrode Tip Material:Iridium
        Electrical Terminal Type:Solid Post
        Ground Configuration:Single Strap
        Ground Electrode Core Material:Nickel Alloy
        Ground Electrode Quantity:1
        Ground Electrode Tip Design:Platinum Alloy Pad
        Hex Size:16mm
        Insulator Height:25 mm
        Manufacturer Heat Range:16
        Pre-Gap Size:1.025 mm
        Programming Required:No
        Reach:17.5 mm
        Resistor Type:Yes
        Seat Type:Tapered
        Spark Plug Approximate Resistor Value:4000-7500 ohms
        Thread Diameter:0.551 in
        Thread Pitch:1.25 in
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