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Autolite 4194 Copper Non-Resistor Spark Plug, Pack of 1Autolite Copper Core spark plugs deliver quick starts, good fuel economy, and smooth acceleration. The copper-glass seal bonds insulator and terminal post center electrode together to ensure full required voltage at spark gap, creating a gas-tight seal that is 100 percent leak-proof. Copper Core spa...$1.53$3.73
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4 New NGK IRIDIUM IX Spark Plug BR6HIX # 34194 New NGK IRIDIUM IX Spark Plug BR6HIX # 3419, Iridium IX Plug, 14mm Thread Size, 12.7mm (1/2") Reach, 13/16" (20.6mm) Hex Size, Gasket Seat, Resistor, Removable Terminal Nut, Fine Wire (0.6mm) Iridium Center Electrode, Tapered Cut Ground Electrode, .031" (0.8mm) Gap, Heat Range 6$30.76$30.76