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    Denso Spark Plug Iridium Power

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    Warranty Information
    • Product Details

      Part No. 5356

      Warranty Details (1 YR REPLACEMENT IF DEFECTIVE)

      Increased performance with World's smallest Iridium Center Electrode (0.4mm).

      Product Features:

      • No-compromise, top of the line race spark plug for the most serious enthusiast.
      • Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
      • Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
      • Wide range of part numbers for thousands of applications, including classic and collector cars
      • Lasts twice as long as most conventional plugs
      • Withstands temperatures greater than 4000° Fahrenheit

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