{"product_id":"ignition-coil-and-iridium-spark-plugs-for-ford-f-150-2018-2021-5-0l","title":"Ignition Coil and Iridium Spark Plugs for Ford F-150 (2018-2021) 5.0L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2018-2021 Ford F-150\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degraded factory coil packs and worn spark plugs to eliminate misfires, restore lost combustion efficiency, and stabilize high-load ignition delivery across all eight cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock F-150 Thermal Degradation \u0026amp; Dielectric Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe 5.0L Coyote engine operates with high cylinder pressures, dual-injection fuel delivery, and a 12.0:1 compression ratio that generates intense cylinder head temperatures. Over sustained operating cycles, factory coil-on-plug (COP) assemblies experience thermal breakdown within their secondary internal windings and silicone boots. This dielectric deterioration allows secondary voltage leakage and high-rpm spark blowout, resulting in uneven idle, sluggish throttle response, and diagnostic misfire codes (P0300–P0308) during heavy towing or wide-open throttle transitions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition service pack includes eight coil-on-plug units constructed with premium internal copper windings for stable primary-to-secondary voltage transformation and direct-fit blade terminal connectors. Paired with eight fine-wire iridium spark plugs, the kit reduces the required arc voltage while resisting electrode erosion under high-temperature combustion. The durable molded housing and thermal-resistant boots prevent tracking and dielectric flashover, ensuring a precise, high-energy spark curve across the entire 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;\"\u003e2018-2021 Ford F-150\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;\"\u003eGen 3 Coyote 5.0L V8 \/ P552 \u0026amp; P702\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;\"\u003e395-400 hp \/ 400-410 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;\"\u003eUF835, UF869, DG565, JR3Z-12029-A, JR3Z-12029-B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2018 Ford F-150 5.0L V8 (XL, XLT, Lariat, King Ranch, Platinum)\u003c\/li\u003e\n  \u003cli\u003e2019 Ford F-150 5.0L V8 (XL, XLT, Lariat, King Ranch, Platinum)\u003c\/li\u003e\n  \u003cli\u003e2020 Ford F-150 5.0L V8 (XL, XLT, Lariat, King Ranch, Platinum)\u003c\/li\u003e\n  \u003cli\u003e2021 Ford F-150 5.0L V8 (XL, XLT, Lariat, King Ranch, Platinum, Tremor)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Ford Towing \u0026amp; Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to withstand the demanding thermal profiles of heavy hauling and payload duty, this ignition package delivers consistent flame kernel propagation without spark blowout or voltage drop under load.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50447744598264,"sku":"DS-EUOBUSXDN","price":149.95,"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-f-150-2018-2021-5-0l-1.jpg?v=1788622803","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-ford-f-150-2018-2021-5-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}