NGK Iridium IX Spark Plugs (8) for 2005-2017 Express 3500 4.8 | 2 Steps Colder
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NGK-TR7IX-8P-EXP30517-48Qty: 8 plugs
-Fine Iridium tip ensures high durability and a consistently stable spark
-Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
-Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties
-Outstanding acceleration, high fuel efficiency and durability
-Ultimate design, technology and performance.