Denso Iridium Power Spark Plug - IKH27 - 5347 Nissan 370Z the plastic composite material offers

the plastic composite material offers much better heat rejection properties that help keep intake air temperatures cooler

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The 2-piece forged 4340 chromoly construction provides outstanding strength and quality

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Denso Iridium Power Spark Plug - IKH27 - 5347 Nissan 370Z the plastic composite material offersSold Per Plug Spark Plug Stock # 5347 P N IKH27 Mfr Label = Spark Plug Iridium Power Resistance = 5000. 0 Ground Electrode Tip Design = Tapercut, U Groove Ground Configuration = Standard Ground Electrode Core Material = Nickel Center Electrode Core Material = Copper Center Electrode Tip Material = Iridium Pre Gap Size = 1. 1 mm Ground Electrode Quantity = 1 Hex Size = 16. 0 mm Manufacturer Heat Range = 27 Seat Type = Flat Reach = 26. 5 mm Thread