{"product_id":"ignition-coil-pack-dg508-spark-plug-kit-for-ford-5-4l-v8-complete","title":"Ignition Coil Pack DG508 \u0026 Spark Plug Kit for Ford 5.4L V8 - Complete","description":"\u003cp\u003eIn this review the Ignition Coil Pack DG508 \u0026amp; Spark Plug Kit is evaluated as a direct replacement set for Ford 5.4L V8 engines from the late 1990s into the mid 2000s. The bottom line: this kit is for owners who need a full ignition refresh - eight coil packs and eight spark plugs supplied together - and who drive supported models such as F150 (1998-2003 and Heritage 2004), Expedition, E-Series, Super Duty and Excursion. It is best valued when you want matched parts that replace OEM references like DG508 and SP479 and prefer to replace the entire set at once to restore consistent ignition performance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Supplies eight ignition coil packs and eight spark plugs so every cylinder receives a new ignition component in one service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM cross-reference:\u003c\/strong\u003e Replaces factory part numbers including DG508, FD504 and multiple Ford OEM refs for direct-fit compatibility on listed models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide model coverage:\u003c\/strong\u003e Fits a long list of Ford vehicles with the 5.4L V8 from 1997 to 2008 in many applications, simplifying parts sourcing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatched components:\u003c\/strong\u003e Providing coils and plugs together helps restore even firing and reduces troubleshooting time compared with mixed-age parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstaller advice:\u003c\/strong\u003e The listing clearly recommends professional installation, which helps preserve warranty and avoid installation damage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis kit is most useful for mechanics and DIY owners who are servicing Ford vehicles with the 5.4L V8 engines listed, and who prefer a full-bank replacement to avoid mismatched ignition parts. It is especially appropriate for trucks and vans showing misfires, rough idle, or aging coils and plugs across multiple cylinders.\u003c\/p\u003e\u003cp\u003eIt is not for owners of 2004+ F-150 5.4L engines that use DG511 coils, or for natural gas E350 applications; buyers should verify their OEM coil reference before ordering. Those who need a single coil rather than a full eight-pack should shop for single-unit replacements instead.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete set simplifies maintenance by replacing all eight coils and plugs at once.\u003c\/li\u003e\n\u003cli\u003eIncludes cross-referenced OEM part numbers to aid fitment checks against factory service parts.\u003c\/li\u003e\n\u003cli\u003eReduces diagnostic time by ensuring all ignition components are new and matched.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDoes not fit 2004+ F-150 5.4L models that require DG511 coils, so fitment must be confirmed.\u003c\/li\u003e\n\u003cli\u003eInstallation may require a professional mechanic for best results and to avoid damage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eContents\u003c\/td\u003e\n\u003ctd\u003e8 coil packs and 8 spark plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary fitment\u003c\/td\u003e\n\u003ctd\u003eFord 5.4L V8 models 1997-2008 (see model list)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNot compatible\u003c\/td\u003e\n\u003ctd\u003e2004+ F-150 5.4L that use DG511, E350 natural gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM cross refs\u003c\/td\u003e\n\u003ctd\u003eDG508, FD504, FD503, FD493 and multiple Ford part numbers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark plug ref\u003c\/td\u003e\n\u003ctd\u003eSP479 (equivalent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eultramindz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Ignition Coil Pack DG508 \u0026amp; Spark Plug Kit is a practical, cost-effective solution for Ford owners needing a full ignition system refresh on supported 5.4L models. It delivers clear value when replacing all eight coils and plugs at once and avoids the common problem of mixed-age components. Confirm engine year and OEM coil reference before purchase; for compatible vehicles this kit restores consistent spark delivery and simplifies repairs.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill these coils fit a 2005 F-150?\u003c\/strong\u003e\u003cbr\u003eNo. The 2004+ F-150 5.4L models use DG511 coils; this DG508 kit is not compatible with those years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit include spark plugs?\u003c\/strong\u003e\u003cbr\u003eYes. The package includes eight spark plugs (reference SP479) alongside eight ignition coil packs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I install these myself?\u003c\/strong\u003e\u003cbr\u003eInstallation is recommended to be done by a qualified mechanic to avoid damage and ensure correct installation.\u003c\/p\u003e","brand":"ultramindz","offers":[{"title":"Default Title","offer_id":48615905296603,"sku":"B0D7C5L2LL","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71TBUtKTClL._AC_SL1500_9a96af54-93a1-4322-9cff-004271bdae1e.jpg?v=1778756465","url":"https:\/\/gearmusthave.com\/products\/ignition-coil-pack-dg508-spark-plug-kit-for-ford-5-4l-v8-complete","provider":"GearMustHave","version":"1.0","type":"link"}