{"product_id":"ignition-coils-uf646-and-iridium-spark-plug-sp534-set-of-6-reliable","title":"Ignition Coils UF646 and Iridium Spark Plug SP534 Set of 6 - Reliable","description":"\u003cp\u003eIn this review the TAUXMZ ignition coil pack UF646 paired with iridium spark plug SP534 is evaluated as a practical replacement kit for 3.5L V6 turbo Ford and Lincoln engines from the 2011-2020 era. The bottom line: it is best for owners who need a direct, OE-level swap to restore power and smooth idle without paying dealer prices. The kit's strongest selling point is the combination of durable coil construction and iridium plugs that together reduce misfires and improve cold-start response.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Vehicle Fitment:\u003c\/strong\u003e Covers many 3.5L V6 turbo applications including F-150, Expedition, Explorer, Flex, Transit and select Lincoln models for straightforward replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Coil Construction:\u003c\/strong\u003e Coil packs use silicon steel, high-pressure rubber sleeves, Japan-imported epoxy resin and Germany-imported enameled wire for long service life and resistance to cracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE Compatibility:\u003c\/strong\u003e Sold as direct replacements for OE numbers like UF646 and compatible Ford OEM part references to simplify ordering and installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIridium Spark Plugs:\u003c\/strong\u003e SP534 iridium plugs use a fine center electrode and robust ceramic to help deliver quicker starts and stable combustion under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Driveability:\u003c\/strong\u003e Designed to reduce engine misfire, rough idle and power loss when replacing failed coils and worn plugs, restoring a smoother running engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValue Packaging:\u003c\/strong\u003e Supplied as a set of six coils and plugs so all cylinders are renewed at once, eliminating mixed-age ignition parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at DIY mechanics and independent shops working on 3.5L V6 turbocharged Ford and Lincoln models from roughly 2011 through 2020 who want an OE-level replacement without dealer markup. It suits drivers noticing misfires, rough idle or reduced power who prefer to replace all ignition components at once to prevent repeat issues.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include owners unsure of exact engine fitment who do not want to verify OE numbers, or drivers who require factory-brand parts with dealer warranty coverage; check vehicle compatibility carefully before purchase to avoid incorrect plugs or coil connectors.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCoil packs and plugs restore engine performance and reduce misfires when matched to the correct vehicle fit.\u003c\/li\u003e\n\u003cli\u003eIridium SP534 plugs deliver reliable cold-start response and stable combustion over time.\u003c\/li\u003e\n\u003cli\u003eHigh-quality materials in the coils promise longer life and resistance to cracking or shorting.\u003c\/li\u003e\n\u003cli\u003eComplete 6-piece set is convenient and cost effective for full-bank replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report fit issues with the electrical plug connection on a minority of installs, so verify connector style before fitting.\u003c\/li\u003e\n\u003cli\u003eFitment requires careful checking against OE numbers to avoid ordering the wrong set for similar engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eIgnition coils and iridium spark plugs set (6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil OE Numbers\u003c\/td\u003e\n\u003ctd\u003eUF646, DG-549 and related Ford references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark Plug Model\u003c\/td\u003e\n\u003ctd\u003eSP534 (iridium electrode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Fitment\u003c\/td\u003e\n\u003ctd\u003e3.5L V6 Turbocharged applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Coverage\u003c\/td\u003e\n\u003ctd\u003eFord F-150, Expedition, Explorer, Flex, Transit, Police Interceptor, Taurus; Lincoln MKS, MKT, Navigator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eSilicon steel, high-pressure rubber sleeve, imported epoxy resin, enameled wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe UF646 coil and SP534 iridium plug set is a sensible, cost-effective way to eliminate misfire and regain engine smoothness on compatible 3.5L V6 turbo Ford and Lincoln vehicles. It offers durable coil construction and long-life iridium plugs, making it a good value for DIY owners and independent shops who confirm exact fitment before ordering.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this kit fit my 2015 F-150 3.5L V6?\u003c\/strong\u003e\u003cbr\u003eYes, the set lists compatibility with 2011-2015 3.5L V6 Turbo F-150 models, but confirm your vehicle's OE part numbers against the listing before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long do the coils and plugs typically last?\u003c\/strong\u003e\u003cbr\u003eCoils are designed to resist cracking and shorting and the plugs use an iridium electrode for extended life; the product description notes reliable operation beyond typical intervals and avoidance of misfire for many miles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these direct OE replacements?\u003c\/strong\u003e\u003cbr\u003eThey are marketed as direct replacements compatible with UF646 and several Ford OE references; proper fit verification is recommended to ensure correct connector and plug gap requirements.\u003c\/p\u003e","brand":"TAUXMZ","offers":[{"title":"Default Title","offer_id":48639437996251,"sku":"B0DLKJZZF3","price":86.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61IC6RyqmUL._AC_SL1500.jpg?v=1778572540","url":"https:\/\/gearmusthave.com\/products\/ignition-coils-uf646-and-iridium-spark-plug-sp534-set-of-6-reliable","provider":"GearMustHave","version":"1.0","type":"link"}