NGK (3689) TR6IX Spark Plug - Pack of 4

NGK 3689 TR6IX Iridium IX Spark Plugs NGK IX Iridium Series plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high-tech, high performance engines.
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