NGK Iridium Spark Plug For Harley
The pinnacle of spark plug performance and technology advancement from the leading brand.
Features:
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The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode
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Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
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New metal shell plating has enhanced anti-corrosion qualities
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Thread reach 19.1 MM (3/4")
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Hex size 16 MM (5/8")
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Heat range 9
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Spark gap 0.8 MM / 0.031"
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Electrical resistance 5K OHMS
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Sold individually