40% under what the other stores charge
Compared across 12 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The NGK Iridium IX BPR9EIX is a single iridium-tipped spark plug, part number 6853, in NGK's 14 mm, 3/4-inch reach, 5/8-inch hex size with a projected tip. Its fine iridium center electrode is far thinner than a nickel or platinum plug's, which lowers the voltage needed to fire and eases the load on coils and ignition parts. It suits riders and drivers replacing plugs on tuned or high-revving engines, and it costs more than a standard nickel plug but lasts longer and holds its gap better. Enthusiasts rate the Iridium IX line for smoother idle and quicker starts; some say the gain over a fresh standard plug is modest on a stock engine.
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Lowest price we've seen: $8.99 on Nov 12 at Summit Racing. Tracked across 12 stores since Nov 12.
Owners of motorcycles, ATVs and small engines report easier cold starts, steadier idle and clean running after fitting the Iridium IX. Most consider it a worthwhile upgrade at plug-change time, though a few say a new standard plug felt much the same.
The NGK Iridium IX BPR9EIX (part 6853) is an iridium spark plug. Its iridium center electrode is 25% smaller than a platinum electrode and one quarter the size of a conventional nickel electrode.
The ultra-small center electrode reduces the voltage requirement and extends ignition system life. The metal shell has new plating with enhanced anti-corrosion qualities.
