{"product_id":"ignition-coil-and-iridium-spark-plugs-for-ford-expedition-2005-2013-5-4l","title":"Ignition Coil and Iridium Spark Plugs for Ford Expedition (2005-2013) 5.4L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2005-2013 Ford Expedition\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degraded factory coil-on-plug boots and fouled spark plugs to eliminate misfires, stabilize idle speed, and restore complete combustion efficiency across all eight cylinders under heavy load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Expedition Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe 3-valve 5.4L Triton engine subjects ignition components to intense thermal cycling within deep cylinder head wells. Over time, factory secondary coil windings degrade, epoxy insulation develops micro-fractures, and high resistance leads to spark blowout, erratic idling, and diagnostic trouble codes (P0300-P0308). Worn OEM electrodes further increase electrical resistance, overloading the primary ignition circuit during acceleration and towing.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete tune-up kit features heavy-duty coil-on-plug assemblies engineered with high-conductivity copper windings, heat-resistant silicone boots, and direct-fit blade terminals. Paired with fine-wire iridium spark plugs, this package provides superior thermal tolerance, lower required firing voltage, and high dielectric strength to resist carbon tracking and withstand continuous combustion heat under load.\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;\"\u003e2005-2013 Ford Expedition\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 3V Modular V8 (Triton) \/ U222 \u0026amp; U324\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;\"\u003e300-310 hp \/ 365 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;\"\u003eDG511, DG-511, FD508, SP546, UF537\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005-2013 Ford Expedition 5.4L V8 (All Trims: XLT, Eddie Bauer, Limited, King Ranch, Max)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Ford Towing Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet the thermal and electrical demands of full-size SUV towing, this direct-fit ignition kit ensures reliable cold starts, clean high-load combustion, and consistent power delivery across heavy payload cycles.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50452209271032,"sku":"DS-E1QX91OS4","price":110.95,"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-expedition-2005-2013-5-4l-1.jpg?v=1788720847","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-ford-expedition-2005-2013-5-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}