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qualityworx

12-21-2017 05:36 PM

spark plugs and boots for a 2008 F150 5.4

2008 F150 XLT Triton 5.4

glc	12-21-2017 05:56 PM

Black boots or brown boots? Makes a big difference. Heads were redesigned mid-year 2008.

Old style black boots: Motorcraft SP546 plugs, Denso 6718164 boot/spring set

New style brown boots: Motorcraft SP509 plugs, Denso 6718172 boot/spring set

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