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    Denso IW16 Iridium Power Spark Plug

    Part # 5305
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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.
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    • Product Details

      Part No. 5305

      Warranty Details (1 YR REPLACEMENT IF DEFECTIVE)

      Iridium power performance upgrade with small center electrode (0.4 mm diameter); tapered-tip U-groove design; Ir alloy (90% Ir).

      Product Features:

      • Iridium power performance upgrade with small center electrode (0.4 mm diameter), tapered-tip U-groove design and Ir alloy (90% Ir)
      • 100% pre-fired to assure high quality
      • Copper-glass seal bonds the center electrode and insulator together for a gas-tight seal; maintains proper heat and excludes hot combustion gases
      • Purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress

    • Specifications
      • Electrode Core Material:Copper
        Electrode Tip Material:0.4mm Iridium
        Ground Strap Quantity:1
        Insulator Type:Purified Alumina
        Manufacturer Heat Range:16
        Material:0.4mm Iridium
        Reach:3/4 in
        Resistor:Yes
        Seat Type:Gasket
        Thread Diameter:14 mm
        Tip Configuration:0.4mm Iridium
        Type:Iridium Power
        Wrench Diameter:13/16 in
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