NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines.

NGK Iridium IX spark plugs feature an ultra-fine center electrode that's designed just thick enough to ensure the maximum durability and life of the spark plugs—and just thin enough to create …

2005年12月2日 · NGK nickel spark plugs feature a specially designed v-groove center electrode, improving ignitability and reducing quenching. The 98% pure copper core delivers increased …

BK是国际规格，BCP是日本规格，BK铁壳比BCP铁壳短2.5MM，一般用起来都没问题。

39 replacement spark plugs found for NGK BKR5EIX. Search this spark plug cross reference with more than 90000 models.

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2008年6月17日 · Ruthenium HX High Ignitability spark plugs bring the most advanced spark plug technology to the automotive aftermarket, delivering better efficiency and power for today’s engines. The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX ideal for the performance enthusiast.