{"product_id":"ignition-coil-and-iridium-spark-plugs-for-ford-excursion-2000-2005-5-4l","title":"Ignition Coil and Iridium Spark Plugs for Ford Excursion (2000-2005) 5.4L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Tune-Up Kit for 2000-2005 Ford Excursion\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Replaces degraded factory coil-on-plug packs and worn plugs to eliminate secondary ignition breakdown and restore precise combustion under heavy towing loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Excursion Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe 2-valve Modular 5.4L V8 subjects its rear-mounted coil packs to severe thermal cycling within deep cylinder head wells. Over time, OEM coil epoxy deteriorates, breaking down dielectric insulation and allowing high-voltage arcing to ground. Combined with standard spark plug electrode erosion, increased spark gap demands exceed degraded coil output, triggering under-load misfires, rough idle, and unburned fuel entering the catalytic converters.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 8-cylinder direct-replacement kit pairs upgraded coil-on-plug units featuring high-purity copper windings with fine-wire iridium spark plugs. The reinforced dielectric housings resist heat soak, while the low-resistance iridium core reduces ignition voltage demand. This setup ensures rapid flame kernel formation, consistent cold starting, and sustained secondary voltage output across the full RPM band.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2000-2005 Ford Excursion\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e5.4L Triton SOHC 2V V8 \/ U137 Platform\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e255 hp \/ 350 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eDG508, DG491, FD503, DCE261, DCE263, DG481, FD493\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2000-2005 Ford Excursion (XLT, Limited, Eddie Bauer) 5.4L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Ford Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the demanding payload and towing duties of the Ford Super Duty platform, this kit guarantees zero misfires and sustained torque delivery across extended duty cycles.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50448495542520,"sku":"DS-E6PXJJHDL","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-ford-excursion-2000-2005-5-4l-1.jpg?v=1788647357","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-ford-excursion-2000-2005-5-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}