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If your 2011-2019 Ford Explorer is showing rough idle, weak acceleration, or poor fuel economy, a failing ignition coil could be the root cause. Choosing the right ignition coil matters because the correct unit restores consistent spark delivery, reduces misfires, and helps the engine run smoothly under load. This guide narrows the field to seven shortlisted ignition coils that fit the 2011-2019 Explorer and highlights the practical factors that affect daily driving reliability and longevity.Below you will find concise evaluations focused on fitment, durability, and electrical performance so you can pick the option that best matches how you use your Explorer. Next up are the top picks followed by what to consider before you buy.
Looking for other parts? See all Ford Explorer parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | ENA Set of 6 Ignition Coils with Iridium Spark Plugs for 3.5L EcoBoost V6 |  |
| Best Quality Built to a higher standard if you want something more solid | TRQ Performance Ignition Coil Set, 6-Pack (3.5L V6) |  |
| Best Value The sweet spot between price and what you get | Sydasant 6-Pack Ignition Coil Packs with Iridium Spark Plugs for 3.5L V6 Turbo Engines |  |
| Best Budget The cheapest option that still gets the job done reliably | TAUXMZ Ignition Coil Pack Set of 6 UF646 Compatible with Ford/Lincoln 3.5L V6 EcoBoost |  |
| Highest Rated A top-rated pick with lots of positive feedback | Marsram Ignition Coil Pack and Double Iridium Spark Plugs, Set of 6 (UF646, 3‑Pin) |  |
| Most Popular A crowd favorite that many people choose with confidence | BDFHYK Ignition Coil Pack Set of 6 with Iridium Spark Plugs (compatible with Ford 3.5L V6) |  |
| Best Seller A high-volume bestseller chosen again and again | NPAUTO UF-646 Ignition Coil Pack Set (6) for 3.5L V6 EcoBoost |  |
1. ENA Set of 6 Ignition Coils with Iridium Spark Plugs for 3.5L EcoBoost V6
| Terminal Quantity | 3 |
|---|---|
| Mount Type | Bolt On |
| Mounting Location | Valve Cover |
| Voltage | 12V |
| Spark Plug Tip | Iridium |
This ENA kit bundles six replacement ignition coils (UF646 style, 3-pin turbo/EcoBoost) with six iridium spark plugs, intended as a direct plug-in swap for compatible 3.5L V6 Ford engines. Installation is straightforward for a mechanically inclined DIYer because the coils mount to the valve cover and use factory-style connectors, and the included iridium plugs are pre-gapped for typical service. The coils are built to deliver a consistent 12V spark and the pack-and-plug pairing aims to reduce misfires and restore smooth idle and throttle response after a worn coil or fouled plug. Practical benefits include having a full-bank kit on hand for preventive maintenance and simplified parts matching versus buying components separately. Limitations to note are that these coils specifically fit the Turbo/EcoBoost 3-pin connector and will not work on 2-pin or naturally aspirated variants, and the set is vehicle-specific so correct fitment verification is essential before purchase.
Best for: Buyers who want a complete, vehicle-specific ignition service kit to restore engine smoothness across all six cylinders without sourcing parts individually.
Less Ideal for: People who need coils for 2-pin or naturally aspirated 3.5L engines or who prefer purchasing OEM-branded components directly from the vehicle manufacturer.
- Complete six-cylinder kit includes both ignition coils and pre-gapped iridium spark plugs
- Plug-and-play design with bolt-on coils and factory-style connectors for straightforward installation
- Iridium plug tips improve longevity and help maintain consistent combustion
- Specifically matched to turbo/EcoBoost 3-pin coil connector to avoid compatibility guessing
- Designed only for turbo/EcoBoost 3-pin coils and incompatible with 2-pin or non-turbo systems
Verdict: A convenient full-bank replacement kit that gets 3.5L EcoBoost V6 engines back to smooth running with matched coils and iridium plugs in one purchase.
2. TRQ Performance Ignition Coil Set, 6-Pack (3.5L V6)
| Included Components | 6 Performance Ignition Coils |
|---|---|
| Installation Type | Bolt-On |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Equivalent Part Number | BL3Z12029C |
| Connector Gender | male |
This TRQ six-piece ignition coil set replaces factory coils on compatible 3.5L V6 Ford models and is aimed at drivers who want a performance-minded direct replacement. Each coil is preassembled for bolt-on installation and uses high-temperature epoxy to resist heat-related degradation. The listing claims up to 15% more energy transferred to the spark plugs, which can translate to stronger sparks, crisper throttle response, and more consistent combustion under load. TRQ supplies vehicle-specific fitment and DIY installation videos to simplify swapping all six coils at once. Practical benefits include time saved by a full-set replacement and longer service life in hot engine bays. Limitations are that performance gains depend on the rest of the ignition and engine condition and that claimed energy improvements are not quantified with independent testing. Buyers should confirm exact vehicle fitment before purchasing since this set is vehicle specific and intended for particular 3.5L V6 applications.
Best for: Buyers who want a straightforward, performance-oriented full-coil replacement to restore or improve ignition strength and throttle response on compatible 3.5L V6 Ford Explorers while keeping installation simple.
Less Ideal for: If you only need a single failing coil or are seeking verified dyno-proven power gains, consider sourcing a single OEM-equivalent coil or aftermarket coils with independent test data instead.
- Complete six-coil kit for replacing all cylinders at once
- Direct-fit, bolt-on installation with preassembled connectors
- High-temperature epoxy designed to improve durability in hot engine bays
- Manufacturer claims increased energy transfer to spark plugs for stronger ignition
- Performance claims are manufacturer-stated and not independently verified
Verdict: Choose this TRQ six-pack if you want a ready-to-install, durability-focused full replacement to restore or sharpen ignition performance on a 3.5L V6 Ford Explorer.
3. Sydasant 6-Pack Ignition Coil Packs with Iridium Spark Plugs for 3.5L V6 Turbo Engines
| Unit Count | 6.0 Count |
|---|---|
| Included Components | Coil Packs & Spark Plugs |
| Automotive Fit Type | Vehicle Specific Fit |
| Part Interchange Info | UF646, DG549, SP534 |
This Sydasant kit bundles six ignition coil packs and matching iridium spark plugs to replace the coil-on-plug units on 3.5L V6 EcoBoost engines. Installation is straightforward for a mechanically competent DIYer or tech because the coils are designed as vehicle-specific fit and swap into the factory locations without modification. The coils are marketed as engineered for OEM and aftermarket use, which in practice means they restore lost spark and smooth out misfires that develop with aging coils, while the iridium plugs provide longer life and slightly better idle and throttle response compared with worn stock plugs. Practical benefits include repairing all six cylinders at once and avoiding intermittent drivability issues. Limitations are that this is a direct replacement aftermarket part set rather than a branded factory unit, and long-term durability will depend on driving conditions and maintenance; the kit includes a one-year replacement guarantee but not extended coverage. Expect solid day-to-day performance and an affordable way to refresh ignition components on compatible 3.5L V6 vehicles.
Best for: Buyers who want a cost-effective, do-it-yourself solution to eliminate misfires and restore smooth running on 3.5L V6 turbo engines, prioritizing practical, full-engine repairs over single-part fixes.
Less Ideal for: Those seeking factory-branded parts with extended OEM warranties or motorsport-level ignition upgrades should consider other options.
- Complete six-coil kit with matching iridium spark plugs for full-engine service
- Vehicle-specific fit designed to install without modification
- Iridium plugs offer longer life and improved combustion stability over worn stock plugs
- Bundles coils and plugs so you replace all ignition components at once to eliminate intermittent misfires
- Aftermarket replacement rather than factory-branded units so long-term parity with factory parts may vary
Verdict: A practical, ready-to-install six-coil and iridium plug kit that refreshes the entire ignition system on 3.5L V6 EcoBoost engines to stop misfires and restore smooth operation.
4. TAUXMZ Ignition Coil Pack Set of 6 UF646 Compatible with Ford/Lincoln 3.5L V6 EcoBoost
| Compatible engines | 3.5L V6 EcoBoost |
|---|---|
| Quantity | Set of 6 |
| Installation Type | Plug-In |
| Connector Gender | male |
These TAUXMZ coil packs are a budget-focused, vehicle-specific replacement set for Ford and Lincoln 3.5L V6 EcoBoost engines. Sold as a pack of six, they plug directly into the stock harness and are intended to restore proper spark to cylinders affected by failed coils to eliminate misfires, rough idle, and loss of power. The listing highlights German-imported wire and epoxy and an expected service life demonstrated in manufacturer claims, which suggests attention to electrical insulation and corrosion resistance. Practical benefits include full-set coverage for engines that use six coils and a vehicle-specific fit that simplifies installation for DIYers and independent shops. Limitations are that longevity and performance depend on installation quality and engine conditions, and this is an aftermarket replacement rather than a factory-branded component. Buyers should confirm exact vehicle fitment against the listed compatible models and part numbers before purchasing to avoid ordering the wrong pack.
Best for: Buyers who need an affordable, full-set replacement to stop misfires and restore normal running on 3.5L EcoBoost engines and prioritize low cost and straightforward installation.
Less Ideal for: Someone seeking factory-branded coils, guaranteed long-term OEM-level lifespan, or professional performance tuning parts should consider higher-end or manufacturer-sourced options.
- Sold as a full set of six for complete engine coverage
- Vehicle-specific plug-in design simplifies DIY installation
- Lists multiple OEM-equivalent part numbers for easy cross-reference
- Materials called out for improved electrical insulation and corrosion resistance
- Aftermarket item so fit and long-term durability may vary versus factory-branded coils
Verdict: A cost-conscious full six-pack replacement that restores spark and driving smoothness for 3.5L EcoBoost Ford and Lincoln engines.
5. Marsram Ignition Coil Pack and Double Iridium Spark Plugs, Set of 6 (UF646, 3‑Pin)
| Part interchange | UF646, DG549, BL3Z-12029-? |
|---|---|
| Automotive fit type | Vehicle Specific Fit |
| Compatible vehicle type | Truck |
| Included components | Comes with housing |
This kit pairs six UF646-design ignition coils with matching double-iridium spark plugs to replace the coil and plug assemblies on 3.5L turbo/EcoBoost V6 Ford and Lincoln engines. It is intended for direct replacement where the vehicle uses the 3-pin UF646 connector and covers model years commonly fitted with that coil design. The coils use epoxy resin and high-strength engineering plastic housings with copper windings for faster ignition response and improved heat resistance. The double-iridium plugs are designed to resist electrode wear and maintain a stable gap for more complete combustion, which helps starts, throttle response, and fuel efficiency. Because the set is vehicle-specific and built to the listed interchange numbers, installation is straightforward for DIY mechanics or techs familiar with coil-on-plug services. Limitations: it is only compatible with turbo/EcoBoost 3.5L V6 engines that use the 3-pin UF646 connector and does not fit 2-pin or non-turbo variants, so confirm connector type and vehicle fitment before buying.
Best for: Buyers who prioritize long-term engine reliability and want a complete, vehicle-specific replacement to restore consistent ignition performance on affected 3.5L turbo V6 Ford and Lincoln models.
Less Ideal for: Drivers with naturally aspirated or 2-pin connector engines, or those who need a universal or multi-vehicle coil solution, should look elsewhere.
- Complete kit includes six coils and six double-iridium spark plugs for a full-bank service
- Coil construction with epoxy and high-strength plastic for improved heat resistance
- Copper windings in coils for faster ignition and consistent spark delivery
- Double-iridium plugs resist electrode wear and help maintain combustion efficiency
- Only compatible with 3-pin UF646 connector turbo/EcoBoost 3.5L V6 engines and not suitable for 2-pin or naturally aspirated variants
Verdict: Choose this kit when you need a full-bank, vehicle-specific replacement to restore reliable ignition on 3.5L turbo/EcoBoost Ford and Lincoln V6 engines that use the UF646 3-pin connector.
6. BDFHYK Ignition Coil Pack Set of 6 with Iridium Spark Plugs (compatible with Ford 3.5L V6)
| Unit Count | 6.0 Count |
|---|---|
| Installation Type | Plug In |
| Connector Gender | Male |
| Automotive Fit Type | Vehicle Specific Fit |
This kit supplies six plug-in ignition coils matched with iridium spark plugs for Ford 3.5L V6 applications, packaged as a direct-replacement, vehicle-specific fit. Typical use is a full-bank service when misfires, rough idle, hard starts, or rising fuel consumption indicate worn coils or plugs. The coils are described as silicon-steel construction with imported rubber boots and varnished wire, and the included iridium plugs aim to improve starting and throttle response compared with worn plugs. Installation is plug-and-play for compatible engines and the set includes housings and a basic manual. Practical benefits are convenience of a complete six-pack, factory-style plug-in installation, and upgraded iridium electrodes that resist fouling. Limitations: compatibility must be verified against OE part numbers before purchase, and build quality for long-term durability may vary compared with factory or premium branded coils; expect typical lifespan differences versus dealer parts. This package is best used when replacing all coils and plugs together to restore smooth running on affected Ford 3.5L V6 vehicles.
Best for: Buyers who want a complete, vehicle-specific coil-and-plug kit to address misfires or aging ignition components and prefer the reassurance of a full-bank replacement with matching parts.
Less Ideal for: Drivers seeking factory-branded dealer parts or professional restorations where OEM provenance and maximum longevity are the primary priorities.
- Complete six-pack plus matching iridium spark plugs for a full-bank service
- Plug-in installation for vehicle-specific fit reduces installation complexity
- Iridium spark plugs offer better ignition reliability and quicker starts compared with worn plugs
- Includes housings and an installation manual to simplify replacement
- Requires OE part number verification to ensure correct fitment for specific model years
- Aftermarket construction may not match long-term durability of factory-brand parts
Verdict: A convenient full-bank replacement that pairs six plug-in coils with iridium plugs to quickly restore smooth running on compatible Ford 3.5L V6 vehicles.
7. NPAUTO UF-646 Ignition Coil Pack Set (6) for 3.5L V6 EcoBoost
| Brand | NPAUTO |
|---|---|
| Vehicle Service Type | Car |
| Connector Gender | male |
| Model | UF-646 ignition coil pack |
This NPAUTO UF-646 kit provides six direct-fit ignition coils intended to replace failed coils on 3.5L V6 EcoBoost engines. It is typically used as a full-bank replacement when a misfire, rough idle, or loss of power points to coil failure. The coils are vehicle-specific fit and come with common interchange numbers to match factory units, which simplifies cross-referencing during purchase. In practice the set lets you replace all cylinders at once to restore consistent spark and smooth running without diagnosing individual coils first. You get a complete pack so you avoid future compatibility mix-ups and reduce labor if doing the job yourself or with a mechanic. Limitations are that this is an aftermarket coil pack set rather than a factory-branded part and performance claims beyond restoring normal operation are not supported by the listing, so buyers expecting upgraded power or longevity beyond factory-spec should temper expectations.
Best for: Practical owners who want a straightforward bank replacement to stop misfires and restore normal running on a 3.5L V6 EcoBoost without hunting down individual coils.
Less Ideal for: Drivers seeking an upgraded performance ignition solution or those who prefer buying only OEM-branded replacement parts.
- Full set of six coils for replacing the entire bank at once
- Vehicle-specific fit for 3.5L V6 EcoBoost engines simplifies installation
- Matches common interchange part numbers for easier cross-reference
- Addresses common symptoms like misfire, rough idle, and power loss
- Aftermarket unit rather than a factory-brand coil, which may differ in long-term durability
Verdict: Buy this full six-pack if you want a simple, vehicle-specific replacement to reliably fix misfires and restore smooth operation on a 3.5L V6 EcoBoost.
Choosing the Right 2011-2019 Ford Explorer Ignition Coil: Key Factors to Consider
Fitment And Connector Compatibility
Correct fitment is the first requirement for a straightforward replacement. The 2011-2019 Ford Explorer saw some variations in engine options and ignition module locations, so a coil that matches the Explorer's mounting points and electrical connector eliminates the need for adapters or splicing.
Using a direct-fit coil reduces install time and minimizes the risk of poor electrical contact that can cause intermittent misfires. Verify the coil's physical shape, bolt pattern, and connector style against your vehicle before purchase, and check that the manufacturer lists the 2011-2019 Explorer in their fitment notes.
Electrical Specifications And Output
An ignition coil must deliver the correct secondary voltage and show the proper primary and secondary resistance for reliable spark. Mismatched electrical specs can lead to weak spark, increased misfires, poor throttle response, and degraded fuel economy.
Review the coil's stated resistance range and recommended operating voltage. Coils with tighter manufacturing tolerances and clearly published specs make it easier to confirm compatibility with your Explorer's ignition system and to troubleshoot issues later.
Thermal Durability And Housing Quality
Engine bay temperatures and repeated heat cycles stress ignition coils. Materials that resist heat degradation, moisture ingress, and thermal cracking will last longer on a Ford Explorer that sees daily driving and highway miles.
Look for coils with robust housings, high-temperature potting compounds, and corrosion-resistant terminals. Improved thermal durability reduces the chance of coil failure that often presents as intermittent misfires after extended runs or in hot weather.
Moisture Resistance And Sealing
Moisture intrusion is a common cause of electrical leakage and coil failure, especially in regions with wet climates or where the engine sees road splash. Proper sealing and molded boots prevent water and contaminants from creating tracking paths that cause misfires.
Choose coils with sealed electrical connectors, silicone or EPDM boots, and good gasket or O-ring interfaces where applicable. Better moisture resistance translates to more consistent starting and fewer misfire codes over time.
Ease Of Installation And Serviceability
Many Explorer owners will perform ignition coil replacement themselves. Coils designed for easy access, with standard fasteners and clear connector release tabs, speed installation and reduce the risk of damaging mounting hardware.
Serviceability also covers availability of replacement part numbers and whether the coil pairs cleanly with existing spark plugs and ignition harnesses. Prefer direct-replacement units that require no modification and that reference OEM or aftermarket part numbers for straightforward sourcing.
Longevity And Warranty Support
Expected lifespan and warranty terms affect long-term ownership costs. Coils with longer warranties or clear durability claims offer additional confidence for drivers who accumulate high annual mileage in their Explorers.
Consider seller or manufacturer warranty coverage and documented lifespan expectations. While warranties do not guarantee performance, they indicate the manufacturer's confidence and provide recourse if early failures occur.
Common Symptoms That Point To A Bad Coil
Recognizing typical failure signs helps you decide whether an ignition coil is the likely culprit before swapping parts. The most frequent symptoms on 2011-2019 Ford Explorer models include a rough idle, engine misfire codes, stumbling during acceleration, and a noticeable drop in fuel efficiency.
Intermittent failures often show up as sporadic misfires that clear after the engine cools. Pay attention to whether warnings appear immediately after starting or only when the engine is hot, as this can steer diagnostic steps.
- Rough or uneven idle at startup and warm running
- Check engine light with P030x misfire codes
- Reduced acceleration or hesitation under load
- Lower fuel economy and increased emissions
How To Test An Ignition Coil On Your Explorer
Basic tests can distinguish a bad coil from spark plug or wiring issues. Start with a visual inspection: look for cracked housings, corrosion on terminals, or degraded boots. Use an ohmmeter to check primary and secondary resistance against the specifications for your coil.
A stronger diagnostic method is a spark test under controlled conditions or using a scan tool to monitor cylinder misfire counts while swapping coils between cylinders. Always follow safety precautions to avoid high-voltage exposure and ensure the ignition system is disabled appropriately when doing bench tests.
- Visual inspection for cracks or corrosion
- Measure primary and secondary resistance with a multimeter
- Use a scan tool to compare misfire counts across cylinders
- Swap coils between cylinders to isolate a bad unit
Matching Coils With The Right Spark Plugs
Coil and spark plug compatibility matters for consistent ignition. The Explorer's ignition system performs best when coils are paired with plugs that meet the recommended heat range and gap. Using a coil designed for higher output with an incorrect plug can increase electrode wear or change combustion behavior.
When replacing coils, inspect the plugs and replace them if worn. Set the plug gap to factory specifications and choose quality plugs that handle the coil's output without premature erosion.
- Check plug condition whenever replacing coils
- Confirm plug gap and heat range match vehicle specs
- Prefer plugs with robust electrode materials for higher-output coils
DIY Replacement Tips For Explorer Owners
Replacing a coil on the 2011-2019 Explorer is often straightforward but requires attention to connector release tabs and torque specs. Work on a cool engine, disconnect the battery, and label connectors if you are removing multiple coils. Use a torque wrench to avoid overtightening mounting bolts.
After installation, clear any diagnostic trouble codes and take a short test drive to verify stable idle and absence of misfire codes. If problems persist, recheck electrical connections and resistance readings before replacing additional components.
- Disconnect the battery and work on a cool engine
- Label connectors to avoid mix-ups
- Use correct torque on mounting bolts
- Clear codes and road-test to confirm fix
When To Replace Single Coil Versus All Coils
Deciding between replacing one coil or the entire set depends on age, mileage, and symptom pattern. If only one cylinder shows misfire and diagnostics confirm a single bad coil, swapping that unit may be adequate. However, if multiple coils show wear or the vehicle has high mileage, replacing several at once can prevent near-term repeat failures.
Budget and future reliability goals influence the choice. Replacing only the failed coil is cost-effective in the short term, while a full set replacement reduces the likelihood of another failure soon after and simplifies maintenance planning.
- Replace a single coil if diagnostics confirm isolated failure
- Consider multiple-coil replacement for high-mileage Explorers
- Factor in expected lifespan and warranty when deciding
Still looking for the perfect fit?
Select your Ford Explorer configuration to see the most relevant Ignition Coils recommendations
How We Chose the Best 2011-2019 Ford Explorer Ignition Coil
We prioritized parts that directly address the performance and reliability needs of 2011-2019 Ford Explorer owners. Selection started with units that match factory electrical specifications and mounting points to ensure plug-and-play fitment across the model years in scope. We then filtered for materials and construction that affect heat resistance and moisture sealing, because ignition coils on the Explorer are exposed to engine bay heat cycles that accelerate failure.We evaluated electrical consistency using manufacturer-stated output and resistance specs, along with design features that reduce arcing and electrical leakage. Durability criteria included coil housing quality, connector robustness, and evidence of improved internal insulation. Serviceability and availability of matching part numbers were considered to make replacement straightforward.Exclusions: we excluded universal or one-size-fits-many coils that require modification, and any units lacking clear fitment data for the 2011-2019 Explorer. We also excluded coils with unverifiable electrical specs or poor construction details. The final list favors direct-fit replacements with documented specifications for resistance, mounting, and connector compatibility.
Our full evaluation process is outlined in our review methodology.
FAQ
What are the most common ignition coil symptoms on a 2011-2019 Ford Explorer?
Common symptoms include rough idle, engine misfire codes, hesitation under acceleration, and reduced fuel economy. Intermittent failures are typical and may appear as problems that worsen when the engine is hot.
How can I test an ignition coil before replacing it?
Start with a visual check for cracks and corrosion, measure primary and secondary resistance with a multimeter, and use a scan tool to compare misfire counts across cylinders. Swapping coils between cylinders can also help isolate a bad unit.
Can I replace a single coil or should I replace all coils at once?
If diagnostics pinpoint a single bad coil, replacing that one is often fine. For high-mileage vehicles or when multiple cylinders show wear, replacing several or all coils reduces the chance of another failure soon after.
Are there special tools required to replace an ignition coil on the Explorer?
Most replacements need basic hand tools, a torque wrench, and possibly a small pick to release connector tabs. A scan tool is helpful to clear codes and verify the repair but is not strictly required for the physical swap.
What maintenance can extend the life of ignition coils?
Keep the engine bay clean to reduce moisture and debris exposure, use correct spark plugs with proper gap, and address oil leaks that can contaminate coil boots. Regular inspection for cracked housings or loose connectors helps catch issues early.
Final Verdict
Prioritize fitment, electrical specifications, and thermal durability when choosing ignition coils for the 2011-2019 Ford Explorer. Matching the coil to the Explorer's connector and resistance specifications minimizes installation issues and reduces the chance of recurring misfires. Balance short-term repair needs against longer-term reliability when deciding whether to replace a single coil or multiple units.In most cases, a direct-fit coil with documented specs and good sealing offers the best combination of reliability and ease of service. Use the diagnostic steps and installation tips above to confirm problems and complete the replacement with confidence.
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