NPAUTO Ignition Coil Pack for 3.5L V6 EcoBoost — 6-Pack UF646, Direct-Fit OE-Style Replacement

NPAUTO's six-piece ignition coil pack set UF646 replaces faulty coils on 3.5L V6 EcoBoost Ford and Lincoln engines to restore reliable spark delivery and smoother operation.

This aftermarket coil pack kit is built for direct-fit replacement on many 3.5L V6 EcoBoost-equipped vehicles from 2011 through 2019, including F-150, Explorer, Expedition, Flex, Transit, and select Lincoln models. Each set contains six ignition coils engineered to meet the OE form, fit, and function so you can address misfires, rough idling, and loss of power without complex modification. Before ordering, verify compatibility with your vehicle year and engine to ensure the correct fit.

How will these coils affect driving performance?

Replacing worn or failed coils with this NPAUTO set helps restore consistent spark across cylinders, which improves combustion stability and can reduce symptoms like misfires or rough idle. While individual results depend on engine condition, fresh coils typically help the engine run more smoothly and maintain expected power delivery.

• Six coils replace all cylinders on a 3.5L V6 EcoBoost engine for uniform performance.
• Fitment designed for direct plug-and-play installation—no cutting or reprogramming.
• Addresses common symptoms linked to bad coils: misfire codes, rough idle, power loss.

Will these fit my specific Ford or Lincoln model?

This kit fits a broad range of 3.5L V6 EcoBoost vehicles from model years listed; compatibility includes many Ford F-150, Explorer, Expedition, Flex, Transit, Taurus and Lincoln MKS/MKT/Navigator variants. Confirm using the interchange numbers or the vehicle compatibility chart to avoid ordering mistakes.

• Compatible years include 2011–2019 across many Ford platforms and select Lincoln years.
• Interchange part numbers provided: UF646, DG549, IC749, BL3Z-12029-C, and others.
• Check your engine code and VIN or the listing’s compatibility chart before purchase.

What should I expect during installation and maintenance?

Installation is straightforward for anyone comfortable with basic engine work: unplug the old coil connector, remove the retaining bolt, swap coils, then reconnect. Use common hand tools and follow torque specs where applicable; inspect spark plugs and connectors while coils are removed for optimal results.

• Standard hand tools required; most jobs are bolt-and-plug replacements.
• Inspect and, if needed, replace spark plugs when changing coils for best results.
• Test for codes and perform a road test after installation to verify resolved issues.

What do these coils replace and what’s included in the package?

The NPAUTO set replaces factory ignition coils that show wear or electrical failure, using accepted interchange numbers for cross-referencing. The retail package contains six ignition coils—one for each cylinder on the 3.5L V6 EcoBoost engine—so you won’t need multiple purchases to fully remedy coil-related problems.

• Package includes: 6 ignition coils (complete set for a 3.5L V6 EcoBoost).
• Interchangeable with common part numbers listed in the product description.
• Arrives ready for direct replacement without additional parts.

Who this product is for: This six-coil NPAUTO kit is aimed at owners and technicians servicing 3.5L V6 EcoBoost Ford and Lincoln vehicles from the listed model years who need a full-coil replacement to address misfires, rough idle, or intermittent power loss. It’s also suitable for fleet maintenance shops, DIY mechanics, and anyone who prefers replacing all coils at once to ensure consistent ignition performance across the engine.