{"product_id":"ignition-coil-spark-plugs-for-ford-flex-2013-2019-3-5l-turbo","title":"Ignition Coil + Spark Plugs for Ford Flex (2013-2019) 3.5L Turbo","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Ignition Coil and Spark Plug Tune-Up Kit for 2013-2019 Ford Flex (D471)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and spark plug kit replaces degraded factory ignition components on the 2013-2019 Ford Flex to resolve high-boost misfires, restore lost combustion efficiency, and stabilize idle quality.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Flex Ignition Breakdown Under Boost\u003c\/h3\u003e\n\u003cp\u003eThe twin-turbocharged \u003cstrong\u003e3.5L EcoBoost\u003c\/strong\u003e platform subjects ignition components to intense thermal stress and elevated cylinder pressures. Over time, the internal primary and secondary windings in the factory \u003cstrong\u003eDG549\u003c\/strong\u003e coil-on-plug packs suffer dialectric breakdown, resulting in intermittent spark blowout during peak boost demand. Concurrently, standard electrode erosion on factory plugs widens the gap beyond the threshold required for high-load combustion, triggering stumbling under acceleration, rough idle, and decreased fuel mileage across both cylinder banks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service kit pairs six direct-fit coil-on-plug packs with six application-calibrated spark plugs engineered specifically for forced induction. Built to mirror OEM form-factor, each coil features high-dielectric epoxy potting, durable heat-resistant boot sleeves, and a 3-pin factory-style terminal connector to ensure zero signal degradation. The matched \u003cstrong\u003eSP534\u003c\/strong\u003e-specification plugs feature precision-machined threads and the proper cold heat range to dissipate combustion heat quickly, preventing pre-ignition and sustaining reliable arc energy across all six combustion chambers.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e6 Ignition Coils\u003c\/li\u003e\n  \u003cli\u003e6 Spark Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2013-2019 Ford Flex\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e3.5L EcoBoost V6 \/ D471 (D4 Platform)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e365 hp \/ 350 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDG549, SP534, UF646, IC749, 2505-484814, BL3Z-12029-C, E1146, 673-6300, 5C1871, SP537, SP580, SP528, CYFS-12-Y3\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2013-2019 Ford Flex Limited 3.5L Turbo (3.5L V6 GAS DOHC Turbocharged EcoBoost)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the D471 Flex?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2013-2019 Ford Flex equipped with the \u003cstrong\u003e3.5L EcoBoost\u003c\/strong\u003e engine. \u003cstrong\u003eFits the 3.5L Turbo only. Not for the naturally aspirated 3.5L V6 (SE, SEL, and Limited without EcoBoost).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eShould these components be installed on a warm engine?\u003c\/h4\u003e\n\u003cp\u003eNo, always perform plug and coil replacement on a fully cooled engine to prevent cross-threading or galling in the aluminum cylinder heads, torquing all plugs to OEM specifications.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Performance Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle high-output turbocharged hauler duty, this complete ignition refresh ensures stable power delivery, smooth cruise manners, and dependable torque output under heavy passenger loads or towing.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67579068547320,"sku":"DS-EFC4LA6IR","price":175.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-ford-flex-2013-2019-3-5l-turbo-1.jpg?v=1791250317","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-spark-plugs-for-ford-flex-2013-2019-3-5l-turbo","provider":"Performance Chip Tuning","version":"1.0","type":"link"}