{"product_id":"marsram-ignition-coil-pack-spark-plugs-for-ford-f-150-1998-2003-5-4l-v8-8-coil-8-plug-kit-direct-fit","title":"Marsram Ignition Coil Pack \u0026 Spark Plugs for Ford F-150 1998–2003 5.4L V8 — 8-Coil\/8-Plug Kit, Direct-Fit","description":"\u003cp\u003e\u003cstrong\u003eMarsram's DG508 ignition coil pack set includes eight direct-fit coils and eight spark plugs engineered to restore reliable ignition for 1998–2003 Ford F-150 5.4L V8 engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete ignition kit is built as a straightforward replacement for worn or failing coils and plugs on many Ford, Lincoln and Mercury vehicles that use the 4.6L or 5.4L modular V8 layouts. Each kit provides the matched components needed to bring back consistent spark delivery, reduce misfires, and make installation simple for DIY mechanics and professional shops. The pack lists multiple OEM cross-references so you can verify fitment before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWill these coils and plugs fit my 1998–2003 Ford F-150 5.4L?\u003c\/h3\u003e\n\u003cp\u003eYes—this kit targets models equipped with the 5.4L V8 from those model years. Always confirm vehicle compatibility by checking your engine size and cross-referenced part numbers before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 1998–2003 F-150 5.4L V8 applications including Lariat\/XL\/XLT and Lightning variants.\u003c\/li\u003e\n  \u003cli\u003eCross-replaces DG-508, DG-457, DG-472 and several OEM numbers like 3W7Z12029AA.\u003c\/li\u003e\n  \u003cli\u003eIncludes eight coils and eight spark plugs for a full-bank replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does installing this kit affect engine performance?\u003c\/h3\u003e\n\u003cp\u003eReplacing aged coils and plugs can restore stable ignition timing and consistent combustion across all cylinders. That often results in fewer misfires, smoother idle, and steadier throttle response when the root cause is ignition-related.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReestablishes uniform spark delivery to each cylinder for balanced firing.\u003c\/li\u003e\n  \u003cli\u003eHelps eliminate cylinder-specific misfires caused by weak coils or fouled plugs.\u003c\/li\u003e\n  \u003cli\u003eProvides a matched set to avoid mixing old and new components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and what tools will I need for installation?\u003c\/h3\u003e\n\u003cp\u003eThe package contains eight ignition coils and eight spark plugs—enough to service a full V8 bank. Basic hand tools and a torque wrench are typically all that’s required for a safe, correct installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: 8 Marsram ignition coils + 8 spark plugs; no additional parts necessary for standard swaps.\u003c\/li\u003e\n  \u003cli\u003eSuggested tools: ratchet, appropriate socket set, spark plug socket, torque wrench, dielectric grease.\u003c\/li\u003e\n  \u003cli\u003eEstimated time: 1–2 hours for an experienced DIYer, longer if removing intake components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDoes Marsram offer a warranty or support if something goes wrong?\u003c\/h3\u003e\n\u003cp\u003eMarsram backs this aftermarket kit with a 1-year limited warranty and customer support for product issues. Contact the seller promptly if you encounter defects or fitment problems so they can respond and resolve your concern.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1-year warranty covers manufacturing defects under normal use.\u003c\/li\u003e\n  \u003cli\u003eSeller support advised to be contacted first for troubleshooting and replacement assistance.\u003c\/li\u003e\n  \u003cli\u003eKeep vehicle and part information handy when reaching out to speed up service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Marsram DG508 coil and plug kit is aimed at owners and mechanics of late-1990s to mid-2000s Ford, Lincoln, and Mercury vehicles with 4.6L or 5.4L V8 engines who want a complete, like-for-like ignition refresh. It’s a practical choice for anyone experiencing misfires, rough idle, or routine maintenance needs who prefers a single-purchase solution that replaces all eight coils and plugs at once. Always confirm fitment against your VIN, engine size, and the cross-reference list prior to installation to ensure compatibility with your specific vehicle.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit include both coils and spark plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the package contains eight ignition coils and eight spark plugs for a full V8 bank replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this kit on vehicles other than the F-150?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it fits many Ford, Lincoln, and Mercury models with 4.6L or 5.4L V8 engines—verify with the provided cross-reference list.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Marsram","offers":[{"title":"Default Title","offer_id":48080992010398,"sku":"B0C61L747J","price":94.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/marsram-ignition-coil-pack-front-view_72fd07e1-0cec-40b1-b1bc-b43f520b51b9.jpg?v=1785794080","url":"https:\/\/northtrailauto.ca\/products\/marsram-ignition-coil-pack-spark-plugs-for-ford-f-150-1998-2003-5-4l-v8-8-coil-8-plug-kit-direct-fit","provider":"North Trail Auto","version":"1.0","type":"link"}