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Set of 8 ISA Ignition Coils & 8 Motorcraft Spark Plugs Compatible with 2005-2008 Ford F150 F-150 Expedition F-250 Super Duty F-350 Super Duty 5.4L V8 Replacement for FD508 SP515 - Walmart.com
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Spark Plug Change Info. - Ford F150 Forum - Community of Ford Truck Fans
Ford 4.6L & 5.4L V-8 Spark Plug Replacement Guide
Ford 4.6L & 5.4L V-8 Spark Plug Replacement Guide
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Spark Plug Change Info. - Ford F150 Forum - Community of Ford Truck Fans