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IZFR6N-E Spark Plug (86-4757) offers enhanced ignitability, increased throttle response, and superior anti-fouling for the performance enthusiast. IZFR6N-E Spark Plug (86-4757) The 0.6-millimeter laser welded tiny Iridium tip assures long-term endurance and a constant spark, while the tapered ground electrode reduces the influence of electrical quenching. A longer insulator nose prevents fouling, corrugated ribs on the insulator prevent flashover, and a triple gasket seal prevents combustion gas leakage. IZFR6N-E Spark Plug (86-4757) has a high melting point, making it heat and electrical wear-resistant, making it ideal for today's high-performance engines.
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