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Deal.ai › NGK
NGK
NGK Iridium IX Spark Plug CR9EHIX-9

NGK Iridium IX Spark Plug CR9EHIX-9

3.7(6 ratings)

Best price now

$14.95at SistersMotoChecked Nov 9

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Price facts

  • Last seen at $14.95 at SistersMoto on Nov 9.
  • Our take on the NGK Iridium IX Spark Plug CR9EHIX-9

    The NGK Iridium IX CR9EHIX-9 is a single iridium-tipped spark plug for gasoline engines that call for this heat range and thread. Its fine 0.6 mm iridium center electrode is about a quarter the diameter of a conventional nickel electrode, so it needs less voltage to fire and puts less load on coils. Iridium also resists erosion better than nickel, so the gap holds longer between changes. It suits riders and drivers replacing plugs on a schedule or chasing a smoother, more reliable spark; it is a stock-replacement part, not a horsepower upgrade, and it costs more than a standard nickel plug.

    Best forMotorcycle and scooter owners replacing plugs on scheduleEngines spec'd for the CR9EHIX-9 heat rangeRiders wanting longer plug life than nickelTuned engines needing a reliable spark under load
    Pros
    • Fine iridium center electrode fires with less voltage
    • Holds its gap longer than nickel plugs
    • Enhanced metal shell plating resists corrosion
    • Direct-fit replacement for engines calling for this plug
    • Strong brand reputation for ignition parts
    Cons
    • Costs more than a standard nickel plug
    • Only fits engines that take this heat range and thread
    • No performance gain if the old plug was already healthy
    • Counterfeits exist, so buy from a trusted seller

    NGK Iridium IX Spark Plug CR9EHIX-9 prices at every store

    • SistersMotoNew

      In stockReturn policy

      $14.95Checked Nov 9
      Visit SistersMoto

    About the NGK Iridium IX Spark Plug CR9EHIX-9

    The NGK Iridium IX spark plug, part number CR9EHIX-9, is built around an iridium center electrode. The electrode is 25% smaller than a platinum electrode and one quarter the size of a conventional nickel electrode.

    The ultra-small center electrode diameter reduces the voltage requirement and extends ignition system life. The metal shell has new plating with enhanced anti-corrosion qualities.

    Brand
    NGK
    Series
    Iridium IX
    Part number
    CR9EHIX-9
    Center electrode
    Iridium, 25% smaller than platinum and 1/4 the size of conventional nickel
    Shell plating
    New plating with enhanced anti-corrosion qualities

    Questions and answers

    What does CR9EHIX-9 mean?
    CR is NGK's 10 mm thread with a 5/8-inch hex, 9 is the heat range (a fairly cold plug), H is the 12.7 mm reach, and IX marks the Iridium IX line. Match all of these to the plug your engine specifies.
    Is this a direct replacement for a standard plug?
    Yes, if your engine calls for a CR9EH-9 or another plug cross-referenced to CR9EHIX-9. It is the same thread, reach and heat range, with an iridium tip instead of nickel.
    How long does an iridium plug last?
    Iridium resists erosion far better than nickel, so it typically lasts several times longer under normal use. Follow your owner's manual for the replacement interval rather than extending it indefinitely.
    Do I need to gap it before installing?
    NGK sets the gap at the factory, and iridium tips are fragile, so check rather than bend. If adjustment is needed, use a gapping tool that does not pry against the center electrode.
    Will it fit my bike or car?
    Only if your engine specifies this heat range and thread. Check the owner's manual or NGK's application guide by make, model and year before buying.
    Can I mix it with other plug brands?
    Use the same plug in every cylinder. Mixing brands or heat ranges can cause uneven combustion and makes diagnosis harder.
    Where is the NGK Iridium IX Spark Plug CR9EHIX-9 cheapest?
    At SistersMoto, for $14.95, as of our latest check.
    What do buyers say about the NGK Iridium IX Spark Plug CR9EHIX-9?
    Rated 3.7 out of 5 from 6 ratings.

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