{"product_id":"ignition-coil-spark-plugs-for-ford-f-150-2018-2021-3-3l","title":"Ignition Coil + Spark Plugs for Ford F-150 (2018-2021) 3.3L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Spark Plug Kit for 2018-2021 Ford F-150\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and spark plug kit replaces deteriorated factory coil-on-plug units and worn plugs on the 2018-2021 Ford F-150 to eliminate secondary winding breakdown, resolve misfire codes, and restore factory combustion efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford F-150 Coil-on-Plug \u0026amp; Thermal Fatigue Breakdown\u003c\/h3\u003e\n\u003cp\u003eUnder repeated thermal cycling and sustained towing demands, factory coil packs on the \u003cstrong\u003eDuratec 33\u003c\/strong\u003e 3.3L V6 suffer from dielectric insulation breakdown within the primary and secondary copper windings. Micro-cracking in the OEM epoxy potting allows voltage to leak to ground rather than discharging across the plug gap. In conjunction with electrode erosion on high-mileage spark plugs, increased resistance stresses the internal driver circuits, manifesting as hesitations under load, irregular idle frequency, and P0300-P0306 cylinder misfire trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct replacement service kit features six matched ignition coils paired with precise-gap spark plugs to restore factory energy transfer. Each coil-on-plug unit is engineered with high-dielectric epoxy potting and copper winding cores designed to resist thermal degradation and internal shorting. The included spark plugs feature factory heat ranges to resist fouling and pre-ignition. Replacing coils and plugs simultaneously guarantees uniform secondary circuit resistance across all cylinders, restoring snappy throttle response and stoichiometric combustion stability without modification.\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; margin-bottom: 20px;\"\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;\"\u003e2018-2021 Ford F-150\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;\"\u003e3.3L Duratec 33 V6 \/ P552 \u0026amp; P702\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;\"\u003e290 hp \/ 265 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;\"\u003eUF825, SP520, JL3Z12029A, DG564, 5C2273\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 3.3L V6 (XL, XLT)\u003c\/li\u003e\n  \u003cli\u003e2019 Ford F-150 3.3L V6 (XL, XLT)\u003c\/li\u003e\n  \u003cli\u003e2020 Ford F-150 3.3L V6 (XL, XLT)\u003c\/li\u003e\n  \u003cli\u003e2021 Ford F-150 3.3L V6 (XL, XLT)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the P552 and P702 F-150?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2018-2021 Ford F-150 equipped with the 3.3L \u003cstrong\u003eDuratec 33\u003c\/strong\u003e PFDI engine across both the \u003cstrong\u003eP552\u003c\/strong\u003e and \u003cstrong\u003eP702\u003c\/strong\u003e chassis generations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these ignition coils require an aftermarket ECU calibration?\u003c\/strong\u003e\u003cbr\u003e No, these coils and plugs match factory resistance profiles and operate seamlessly with the stock Ford powertrain control module.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Towing \u0026amp; Utility Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the work cycle demands of the F-Series platform, this ignition refresh package maintains uninterrupted spark output under severe engine loads, heavy towing, and extended payload hauls.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50623670059256,"sku":"DS-EICU2K63X","price":188.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-ford-f-150-2018-2021-3-3l-1.jpg?v=1790297202","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-spark-plugs-for-ford-f-150-2018-2021-3-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}