NGK Iridium IX Spark Plugs (8) for 1999-2016 E350 Econoline Super Duty 5.4 Gasoline | 1.5 Step Colder
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NGK-TR7IX-8P-E35S9916-54Qty: 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.