{"product_id":"npauto-ignition-coil-pack-kit-for-3-5l-v6-ecoboost-6-pack-uf646-replacement-direct-fit-for-ford-lincoln-2011-2019","title":"NPAUTO Ignition Coil Pack Kit for 3.5L V6 EcoBoost – 6-Pack UF646 Replacement, Direct Fit for Ford \u0026 Lincoln (2011–2019)","description":"\u003cp\u003e\u003cstrong\u003eReplacement six-pack ignition coil set for 3.5L V6 EcoBoost engines that restores reliable spark delivery across compatible Ford and Lincoln models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis NPAUTO UF646 ignition coil pack kit contains six aftermarket high-performance coils engineered to match the fit and firing requirements of 3.5L V6 EcoBoost engines used in many Ford F-150, Expedition, Explorer, Flex, Taurus, Transit, Lobo models and Lincoln counterparts from 2011–2019 (see compatibility list). Each coil is designed to be a direct physical replacement for the listed OEM part numbers so you can swap them in without custom adapters. The set addresses common coil-failure symptoms such as misfires, rough idle, power loss, and reduced fuel efficiency by providing consistent voltage to spark plugs.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will these NPAUTO coils fit?\u003c\/h3\u003e\n\u003cp\u003eThe kit is specified for 3.5L V6 EcoBoost applications across a range of Ford and Lincoln vehicles. Compatibility covers multiple model years and trim levels; always cross-check your vehicle’s VIN or current coil part number against the interchange list before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFord F-150 (2011–2016) and F150 variants listed in compatibility\u003c\/li\u003e\n  \u003cli\u003eExpedition (2015–2017), Explorer, Flex, Taurus, Transit and Lobo models as specified\u003c\/li\u003e\n  \u003cli\u003eLincoln MKS, MKT, Navigator (2013–2017) per the interchange references\u003c\/li\u003e\n  \u003cli\u003eInterchange numbers: UF646 \/ UF-646 \/ DG549 \/ IC749 and OEM references such as BL3Z-12029-C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these coils improve engine performance and drivability?\u003c\/h3\u003e\n\u003cp\u003eWhen installed as a matched set, fresh ignition coils help restore steady spark timing and energy, which reduces misfires and smooths idle. That improved spark consistency supports more complete combustion under load, which often results in more predictable power delivery and can help return lost fuel economy caused by failing coils.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReduces engine misfire frequency when coils are the cause\u003c\/li\u003e\n  \u003cli\u003eStabilizes idle and reduces rough-running at low RPM\u003c\/li\u003e\n  \u003cli\u003eHelps recover lost throttle response and drivability\u003c\/li\u003e\n  \u003cli\u003eMatches OEM electrical and mounting dimensions for direct replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before ordering and installing this coil set?\u003c\/h3\u003e\n\u003cp\u003eConfirm fitment by comparing your vehicle’s engine code, production year, and existing coil part numbers to the interchange list. Also inspect spark plugs, wiring harnesses, and connectors — coils seldom fail in isolation, so replacing worn spark plugs and ensuring clean connector contacts will avoid repeat problems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify engine is the 3.5L V6 EcoBoost and year range matches listing\u003c\/li\u003e\n  \u003cli\u003eCross-reference OEM\/interchange numbers: UF646, DG549, IC749, BL3Z-12029-C, etc.\u003c\/li\u003e\n  \u003cli\u003eReplace spark plugs and clean connectors at the same time when possible\u003c\/li\u003e\n  \u003cli\u003eTorque mounting bolts to factory specs and use dielectric grease on terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these coils a direct replacement and what’s included in the package?\u003c\/h3\u003e\n\u003cp\u003eYes — the NPAUTO UF646 set is sold as a group of six coils sized to directly replace the OE coils used in qualifying 3.5L EcoBoost engines. The box contains six ignition coils; no additional hardware is typically required for a standard swap, but always confirm with vehicle-specific service information.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePackage contains 6 ignition coils — one per cylinder for V6 applications\u003c\/li\u003e\n  \u003cli\u003eDesigned to fit existing OEM mounting points and electrical connectors\u003c\/li\u003e\n  \u003cli\u003eSold as an aftermarket high-performance replacement for listed OEM numbers\u003c\/li\u003e\n  \u003cli\u003eCheck vehicle-specific instructions for any seals, clips, or bolt reuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This six-coil NPAUTO kit is aimed at owners and technicians working on 3.5L V6 EcoBoost Ford and Lincoln models who need a reliable, cost-effective replacement for failing ignition coils. It’s especially useful for vehicles showing misfires or rough idle where coils are diagnosed as the root cause, and for anyone doing preventive maintenance during spark-plug service on compatible model years.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this coil set fit my 2015 F-150 3.5 EcoBoost?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the six-coil UF646 set fits many 2015 Ford F-150 3.5L EcoBoost models—confirm by matching your existing coil part number or VIN compatibility chart.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Should I change spark plugs when replacing these coils?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It's recommended—new spark plugs and clean connectors reduce repeat issues and ensure the coils perform optimally after installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NPAUTO","offers":[{"title":"Default Title","offer_id":48080770990238,"sku":"B0CXSMS7H7","price":136.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/npauto-coilset-front-packaging.jpg?v=1785786655","url":"https:\/\/northtrailauto.ca\/products\/npauto-ignition-coil-pack-kit-for-3-5l-v6-ecoboost-6-pack-uf646-replacement-direct-fit-for-ford-lincoln-2011-2019","provider":"North Trail Auto","version":"1.0","type":"link"}