{"product_id":"dg508-ignition-coil-packs-sp479-ngk-spark-plugs-replacement-direct","title":"DG508 Ignition Coil Packs \u0026 SP479 NGK Spark Plugs Replacement - Direct","description":"\u003cp\u003eIn this review the DG508 ignition coil packs and SP479 NGK spark plugs are evaluated as a budget-friendly, direct replacement for Ford 4.6 and 5.4 V8 models. The bottom line: this kit is for DIY owners who want a straightforward swap to restore spark delivery without paying dealer prices. The main reason to buy is the clear focus on fitment and compatibility with many factory part numbers, which makes it a practical choice when coils have failed and a fast, user-installable fix is required.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect replacement:\u003c\/strong\u003e Designed to match factory mounting and electrical connections so installation is straightforward for owners who are comfortable with basic engine work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e Covers several OEM part numbers such as DG508, DG457, DG472 and equivalents so it fits a range of Ford 4.6 and 5.4 V8 applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes spark plugs:\u003c\/strong\u003e The SP479 NGK plugs included allow a paired coil and plug refresh that can improve ignition consistency when both components are aged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaves time and money:\u003c\/strong\u003e Buying this replacement set and installing it yourself reduces shop labor and downtime compared with dealer service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty support:\u003c\/strong\u003e The seller promises a 5 year period with proof of purchase and a no-hassle refund or replacement policy if issues arise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is best for Ford F-150, Mustang, Crown Victoria, Lincoln Town Car, Mercury and Excursion owners who have identified misfires or coil failures and prefer to perform the service themselves. It suits DIY mechanics who need a like-for-like replacement that matches known OEM numbers and want the convenience of coils and plugs together.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for buyers who demand OE branding or who require long-term fleet duty-cycle testing; some customers reported mixed long-term functionality, so professional fleets or those seeking extended longevity beyond warranty may prefer OEM dealer parts or higher-end aftermarket brands.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood fit and straightforward installation for vehicles listed in the fitment guide.\u003c\/li\u003e\n\u003cli\u003eIncludes both coils and NGK plugs, offering a complete ignition refresh in one purchase.\u003c\/li\u003e\n\u003cli\u003eValue for money compared with dealer replacement and includes a 5 year proof-based warranty.\u003c\/li\u003e\n\u003cli\u003eMany customers report improved engine responsiveness and better fuel economy after replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFunctionality feedback is mixed; a minority of users reported coils failing weeks after installation, so longevity may vary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eIgnition coil packs and spark plugs replacement kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible engines\u003c\/td\u003e\n\u003ctd\u003eFord 4.6L and 5.4L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded parts\u003c\/td\u003e\n\u003ctd\u003eIgnition coils and SP479 NGK spark plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible part numbers\u003c\/td\u003e\n\u003ctd\u003eDG508, DG457, DG472, DG491, SP479, F523, 3W7Z12029AA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 years with proof of purchase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended vehicles\u003c\/td\u003e\n\u003ctd\u003eF-150, Mustang, Crown Victoria, Town Car, Excursion, Mercury models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe DG508 coil and SP479 plug kit is a practical value option for owners who need a rapid, compatible replacement and are comfortable doing the swap themselves. It offers clear benefits in fit and initial performance and the included warranty mitigates some risk, but buyers seeking proven long-term durability for heavy-duty use should weigh OEM options as well.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill these coils fit my Ford 5.4 V8?\u003c\/strong\u003e\u003cbr\u003eThey are designed for Ford 4.6 and 5.4 V8 applications; confirm fitment with the product fitment filter and vehicle details before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre spark plugs included?\u003c\/strong\u003e\u003cbr\u003eYes, the kit includes SP479 NGK spark plugs so you can replace coils and plugs together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat warranty is offered?\u003c\/strong\u003e\u003cbr\u003eThe seller provides a 5 year warranty with proof of purchase and a no-hassle refund or replacement promise if you are not satisfied.\u003c\/p\u003e","brand":"HIKARU PARTS","offers":[{"title":"Default Title","offer_id":48245305049307,"sku":"B09FH99J6P","price":79.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61OQ-CAKAqL._AC_SL1500.jpg?v=1770976019","url":"https:\/\/gearmusthave.com\/products\/dg508-ignition-coil-packs-sp479-ngk-spark-plugs-replacement-direct","provider":"GearMustHave","version":"1.0","type":"link"}