Best Spark Plugs For 2.7 Ecoboost F150

I love my 2.7 EcoBoost F150, but like any turbocharged truck owner, I know the ignition system needs attention, especially when pushing some miles or adding a tune. Finding the best spark plugs for 2.7 EcoBoost F150 is crucial for maintaining that turbocharged power, avoiding misfires, and keeping up fuel efficiency. After researching dozens of options—from OEM replacements to performance-focused cold plugs—I compiled this detailed guide to help you choose the high-quality replacement F150 spark plugs that deliver consistent performance and reliability.

IMAGE	PRODUCT NAME	AMAZON LINK
	OverstockDirect Genuine OEM SP594 Iridium Spark Plugs (6…	View on Amazon
	Ford Racing (M-12405-35T) 10-17 Flex 3.5L EcoBoost Cold…	View on Amazon
	6 pc Champion Iridium Spark Plugs compatible with Ford…	View on Amazon
	A-Premium 6PCS Iridium Platinum Spark Plugs Compatible with…	View on Amazon
	AULINK Set of 6 UF646 Ignition Coil Pack & SP534…	View on Amazon
	6 pc E3 Spark Plugs compatible with Ford F-150 2.7L…	View on Amazon
	Yoshi Motors DG549 UF646 Ignition Coil Packs & NGK…	View on Amazon
	REAXOAL M-12405-35T EcoBoost Cold Spark Plug Set Compatible…	View on Amazon
	Iridium Platinum Spark Plugs 6 Pack 95927 ILTR6S8…	View on Amazon
	6 pc NGK Ruthenium HX Spark Plugs compatible with Ford…	View on Amazon

OverstockDirect Genuine OEM SP594 Iridium Spark Plugs (6 pack) CYFS12YRT3

When you’re looking for absolute peace of mind, sticking with genuine OEM parts is usually the safest bet. These SP594 Iridium plugs are the exact components Ford recommends for the 2.7L EcoBoost, ensuring seamless compatibility and performance right out of the box. They offer the quality and reliability you expect from a factory component, making them a fantastic choice for drivers who want to keep their truck running exactly as the engineers intended, maximizing the life of your EcoBoost spark plugs.

Key features that stand out:
* Genuine OEM Parts: Guarantees proper fitment and intended engine function.
* Quality, Reliability and Durability: Built to strict manufacturer specifications.
* Iridium Construction: Provides longevity and consistent, powerful spark delivery.

Pros:
– Guaranteed direct fit and function.
– Excellent longevity and stability for stock vehicles.
– No need to worry about gapping inconsistencies if installed correctly.

Cons:
– Can be slightly pricier than quality aftermarket options.

Best for:
Stock or lightly modified 2.7L EcoBoost owners prioritizing factory reliability.

Expert Opinion: If your 2.7 EcoBoost F150 is still running the stock tune, these are the gold standard. They are designed specifically for the heat range and pressure of this engine.

Ford Racing (M-12405-35T) 10-17 Flex 3.5L EcoBoost Cold Spark Plug Set

While labeled for the 3.5L EcoBoost, the M-12405-35T plugs are a well-known option for 2.7L owners running aggressive tunes or heavy boost pressures. These are often referred to as “cold plugs,” meaning they pull heat away from the tip faster than stock plugs. This thermal control is vital when you increase power, as it helps prevent dangerous pre-ignition and detonation. This set is a favorite among the performance community looking to safeguard their high-output EcoBoost engine.

Key features that stand out:
* Cold Heat Range: Essential for tuned or performance applications.
* Race Tested: Developed under the Ford Racing umbrella for high performance.
* Improved Detonation Resistance: Safer operation under increased boost.

Pros:
– Highly recommended for heavily tuned 2.7L F150s.
– Superior heat dissipation capacity.
– Direct installation, though gapping may be required for tuning.

Cons:
– Too cold for entirely stock applications, potentially leading to carbon fouling.

Best for:
Performance-tuned 2.7L F150s running aftermarket turbos or aggressive ECU calibration.

Expert Opinion: If you have pushed your F150 past the factory limits, switching to a colder plug like this is practically mandatory to protect the engine internals.

6 pc Champion Iridium Spark Plugs compatible with Ford F-150 2.7L 3.5L V6 2011-2020

Champion brings their decades of racing expertise to the table with these Iridium plugs. Designed to handle the rigorous demands of modern turbocharged engines, these spark plugs focus on creating a sharply focused flame kernel. This design promotes faster and more efficient combustion, which translates directly to improved power delivery and reduced chances of misfire under heavy load. Iridium construction ensures a long service life, rivaling OEM durability.

Key features that stand out:
* Fine-Wire Center Electrode: Provides a faster and more consistent ignition.
* V-Trimmed Ground Electrode: Minimizes quenching, improving ignitability.
* Precious Metal Durability: Built with Iridium for extreme heat and pressure resistance.

Pros:
– Exceptional reputation for reliability and race-proven technology.
– Improves combustion efficiency for better throttle response.
– Adheres to strict OE-quality replacement standards.

Cons:
– Installation requires careful gapping verification to match F150 specs.

Best for:
Drivers seeking a reliable, high-quality Iridium plug from a trusted brand, suitable for stock or mild tunes.

Expert Opinion: Champion plugs offer an excellent blend of racing heritage performance features with the robust reliability needed for daily driving your F150.

A-Premium 6PCS Iridium Platinum Spark Plugs Compatible with Ford F-150 2015-2021, Edge 2015-2020, Fusion 2017-2019 & Lincoln MKX 2016-2018, Navigator 2020-2021 – V6 2.7L 3.0L 3.5L

A-Premium offers a popular choice utilizing a durable combination of Iridium and Platinum. This dual-precious metal construction is engineered for optimal engine performance and longevity, targeting service intervals between 80,000 to 100,000 miles. These spark plugs are designed to be an OE-spec replacement for many Ford EcoBoost applications, including the 2.7L F-150, offering a cost-effective alternative to genuine Ford parts without sacrificing core function.

Key features that stand out:
* Iridium/Platinum Combination: Maximizes longevity and stable performance.
* Wide Vehicle Compatibility: Fits a large range of 2.7L EcoBoost platforms.
* Long Replacement Interval: Recommended replacement mileage up to 100,000 miles.

Pros:
– Highly cost-effective option for quality precious metal plugs.
– Excellent longevity, reducing required maintenance frequency.
– Designed to match OE specifications for hassle-free replacement.

Cons:
– Quality control on pre-gapping might require checking before installation.

Best for:
Budget-conscious buyers seeking maximum lifespan and OE-level performance without the dealership price tag.

Expert Opinion: For high-mileage drivers who don’t want to compromise on the materials used in their F150 spark plugs, the Iridium/Platinum mix offers great value longevity.

AULINK Set of 6 UF646 Ignition Coil Pack & SP534 Spark Plug (3.5L V6 Only) For Ford F150 EcoBoost Flex Taurus Explorer Lincoln MKS MKT 2011 2012 2013 2014 2015 2016 2017

Note: While the title specifies 3.5L V6 only, this product is often cross-shopped for its inclusion of ignition coils. This AULINK bundle is primarily aimed at the 3.5L market but represents an appealing package deal for those whose issues might be broader than just spark plugs. If you are diagnosing misfires and your coils are original or aging, replacing the entire ignition circuit at once can be a huge time saver. The included SP534 plugs are standard replacements, paired with high-quality, high-temperature resistant ignition coils.

Key features that stand out:
* Complete Ignition Solution: Includes both coils (UF646) and spark plugs (SP534).
* Premium Coil Quality: Coils are designed with high-temperature and impact resistance.
* Strict Quality Control: Manufactured in TS16949 certified facilities.

Pros:
– Ideal for full ignition system overhauls, especially on older F150 models.
– Excellent value proposition for replacing both plugs and coils simultaneously.
– Coils are built tough for long-term reliability.

Cons:
– Spark plug fitment (SP534) must be rigorously double-checked for 2.7L compatibility, as the listing primarily targets 3.5L.

Best for:
F150 owners experiencing ignition system failure who need to replace coils and plugs together on a budget.

Expert Opinion: If your maintenance history is unknown, starting fresh with both coils and plugs dramatically reduces potential points of failure, though verify the plug heat range for the 2.7L.

6 pc E3 Spark Plugs compatible with Ford F-150 2.7L 3.3L 3.5L 3.7L V6 2011-2022

E3 spark plugs stand out due to their unique DiamondFIRE design, which deviates significantly from traditional electrodes. This edge-to-edge spark path aims to provide a quicker, more robust ignition by allowing the spark zone to replenish with a fresh air/fuel charge instantly. Owners report benefits like increased power and potential fuel economy improvements. They feature a durable diamond fine electrode and copper core for reliable, long-lasting performance in various V6 F150 applications.

Key features that out:
* DiamondFIRE Electrode: Unique design for an enhanced, powerful spark.
* Increased Power and Fuel Consumption Reduction: The claimed E3 advantage.
* Copper Core/Ceramic Top: Excellent heat transfer and durability.

Pros:
– Unique design reduces carbon deposits, extending plug life.
– Concentrates spark energy for quick and reliable starts.
– Compatible across a very wide range of F150 V6 engines.

Cons:
– Non-traditional design means performance results can vary significantly depending on the engine’s specific tuning.

Best for:
Truck owners looking to experiment with alternative spark plug designs to potentially optimize fuel efficiency and cold start behavior.

Expert Opinion: E3 plugs often generate strong opinions; while some drivers swear by the improved throttle response, others prefer the proven reliability of precious metal OEM designs for their 2.7 EcoBoost F150.

Yoshi Motors DG549 UF646 Ignition Coil Packs & NGK Iridium Spark Plugs Compatible With Ecoboost Ford F150 F-150 Explorer Expedition Navigator 3.5 3.5L V6 2011 2012 2013 2014 2015 2016 2017 Set of 6

Another excellent bundle option, Yoshi Motors pairs high-quality replacement ignition coils with trusted NGK Iridium spark plugs. NGK is a leader in ignition technology, known for durable plugs that deliver consistent performance under high heat and pressure—perfect for the EcoBoost environment. This set ensures that you are replacing both major components of the ignition system with reliable materials, avoiding damage caused by worn coils or aging spark plugs.

Key features that stand out:
* NGK Iridium Plugs: Trusted brand known for ignition reliability.
* High Electrical Resistance Coils: Built to withstand high temperatures and prevent cracks.
* Seamless Fit: Designed as a direct, quick replacement for easy DIY install.

Pros:
– Combines an industry-leading plug brand (NGK) with new coils.
– Offers high electrical resistance for cleaner spark delivery.
– Excellent choice for mitigating misfires caused by aging components.

Cons:
– Requires verification that the specific NGK plug heat range is correct for the 2.7L if running heavy boost.

Best for:
Owners needing a comprehensive ignition system refresh, prioritizing the proven quality of NGK spark plugs.

Expert Opinion: Pairing reliable coils with NGK Iridium plugs is a smart investment. You are not just addressing the spark but ensuring the entire circuit is robust enough for your turbocharged F150 2.7L.

REAXOAL M-12405-35T EcoBoost Cold Spark Plug Set Compatible with 2011-2020 Ford F150 Expedition Explorer Sport/ST Taurus Flex Edge Sport

This set is an aftermarket version of the highly popular M-12405-35T Ford Racing cold plug. Made of high-quality Iridium material, these plugs are explicitly marketed as one heat range lower than stock plugs, making them ideal for performance-minded 2.7 EcoBoost F150 owners. They are crucial for maintaining engine safety when running elevated cylinder combustion pressures often associated with aftermarket tuning, helping to prevent catastrophic engine failure due to excessive heat.

Key features that stand out:
* One Heat Range Colder: Necessary for aggressively tuned engines.
* High-Quality Iridium Material: Offers longevity and wear-resistance.
* Prevents Pre-Ignition: Specifically designed for higher cylinder pressures.

Pros:
– Cost-effective alternative to the official Ford Racing cold plugs.
– Enhances safety and performance reliability in tuned applications.
– Extremely wear-resistant and durable under high stress.

Cons:
– Requires professional installation or careful gapping adjustments for optimal performance.

Best for:
Tuned 2.7L F150s where increased boost pressure demands a colder plug heat range.

Expert Opinion: Never overlook the heat range when tuning. These “cold plugs” are essential insurance against detonation for serious performance seekers.

Iridium Platinum Spark Plugs 6 Pack 95927 ILTR6S8 Compatible with 2015-2021 Ford F150 2.7 Edge 2015 2016 2017 2018 2019 2020 2021, Fusion 2.7L 2017-2019 & Lincoln Navigator 2020 2021

This 6-pack of Iridium Platinum spark plugs focuses heavily on optimizing fuel efficiency. Featuring a 0.6mm fine-wire iridium center tip combined with advanced laser-welded technology, the goal is to provide a clean, powerful, and quick spark that minimizes fuel consumption while ensuring stability across the engine’s speed range. These are designed as a premium quality OE replacement, offering peace of mind through strict quality control testing against common ignition system issues like misfiring or poor idling.

Key features that stand out:
* 0.6mm Fine-Wire Iridium Tip: Designed for maximum ignitability and fuel efficiency.
* Laser Welded Technology: Ensures durability and precise placement.
* Addresses Common Misfire Issues: Rigorously tested for reliability.

Pros:
– Strong focus on improving gas mileage and stable idle performance.
– Excellent fitment and quality control for a direct replacement.
– Reliable replacement for factory OEM plugs (SP594 equivalents).

Cons:
– While focused on efficiency, they may not offer the extreme performance needed for race tunes.

Best for:
Everyday drivers of the 2.7L EcoBoost F150 who prioritize fuel economy and consistent, smooth running.

Expert Opinion: When replacing your F150 spark plugs, choosing a fine-wire design like this is a great step toward maximizing both engine responsiveness and fuel economy over the long haul.

6 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 2.7L V6 2015-2019

NGK’s Ruthenium HX technology is one of the newest advancements in spark plug design, engineered specifically for high-heat, high-pressure direct injection engines like the EcoBoost. Ruthenium is harder than both Iridium and Platinum, meaning these plugs offer superior durability and resistance to oxidation and wear under extreme conditions. They promise enhanced throttle response and better low-end performance compared to standard precious metal plugs, positioning them as a top-tier upgrade for the 2.7 EcoBoost F150.

Key features that stand out:
* Ruthenium HX Technology: Cutting-edge material for superior wear resistance.
* Enhanced Throttle Response: Designed for better ignitability and performance.
* Genuine NGK Quality: Trustworthy brand with direct replacement fitment.

Pros:
– Best-in-class durability and resistance to wear and heat.
– Delivers a noticeable improvement in overall engine performance and responsiveness.
– Guaranteed genuine NGK parts with confirmed F150 fitment.

Cons:
– Premium pricing due to the use of Ruthenium material.

Best for:
F150 enthusiasts seeking the absolute latest in spark plug technology for the best possible longevity and performance gains in stock or mildly tuned applications.

Expert Opinion: Ruthenium is the future of performance plugs. If you want a fit-it-and-forget-it solution that provides robust performance gains, these are worth the investment.

Comparison Insights on Best Spark Plugs For 2.7 Ecoboost F150

Choosing the right F150 spark plugs often comes down to your driving style and whether your truck is stock or tuned.

If you value OEM reliability and guaranteed fitment, the OverstockDirect Genuine OEM SP594 Iridium plugs are your best choice. They are specifically designed for the engine’s factory calibration, ensuring your maintenance is straightforward and reliable for high mileage.

For performance tuning, you must look at the colder heat range options. The Ford Racing M-12405-35T (or the REAXOAL equivalent) is the standard recommendation in the EcoBoost tuning community. These are essential safety components for any truck running higher than stock boost pressures to combat pre-ignition.

Regarding material technology and longevity, the NGK Ruthenium HX plugs represent the pinnacle. Ruthenium offers superior wear characteristics compared to standard Iridium/Platinum plugs, making them a fantastic premium upgrade for drivers seeking improved responsiveness and maximum plug life.

Finally, if you are looking for value-packed maintenance where you suspect the coils might also be failing, consider the bundle kits like those offered by Yoshi Motors or AULINK. Replacing the ignition coils and spark plugs together often resolves intermittent misfires completely and saves money in the long run.

Final Verdict

Making the best choice for your 2.7 EcoBoost F150 depends entirely on your specific needs:

For the Average Driver (Stock Tune, High Mileage): My top recommendation leans toward the reliability of genuine components. Go with the OverstockDirect Genuine OEM SP594 Iridium Spark Plugs. They offer the durability and consistency Ford designed the truck around, ensuring the easiest and most reliable 80,000+ mile replacement.

For the Enthusiast (Aggressively Tuned, High Boost): You absolutely must opt for the colder heat range plugs. The Ford Racing (M-12405-35T) Cold Spark Plug Set is the benchmark here. Sacrificing the proper heat range for a cheaper plug is a risk no tuner should take.

For the Upgrader (Seeking Premium Performance and Longevity): If budget allows and you want the latest technology available in your EcoBoost F150, choose the NGK Ruthenium HX Spark Plugs. Their advanced material composition offers a noticeable upgrade in throttle response and thermal durability without the extreme coldness penalty of performance-only plugs.

Best Spark Plugs For 2.7 Ecoboost F150 FAQ

What gap size should I use for my 2.7 EcoBoost F150 spark plugs?

For a completely stock 2.7L EcoBoost, the factory recommended gap is typically 0.030″ to 0.031″ (or 0.032″ depending on the model year and specific OEM plug). However, if your truck is running a performance tune, it is common practice to reduce the gap slightly, often down to 0.028″ or 0.026″. A tighter gap helps prevent spark blowout under high boost pressures. Always check and adjust the gap regardless of what the package claims.

How often should I replace the spark plugs in my 2.7 EcoBoost?

Ford recommends replacing the original F150 spark plugs around 60,000 to 100,000 miles, especially when using high-quality Iridium or Platinum plugs. However, EcoBoost engines, particularly those that are tuned or driven hard, generate significantly more heat and stress. Many performance shops recommend replacement intervals closer to 30,000 to 40,000 miles to maintain peak performance and avoid misfires caused by electrode wear.

What are “cold plugs” and why would I need them for my EcoBoost?

“Cold plugs” are spark plugs designed with shorter insulator noses, which means they transfer heat away from the combustion chamber and into the cylinder head faster than “hot plugs.” If you have a heavily modified or aggressively tuned 2.7 EcoBoost F150 running high boost pressure, the engine combustion temperatures increase dramatically. Using a colder plug (like the M-12405-35T) prevents the spark plug tip from becoming too hot, which could otherwise lead to pre-ignition or detonation—a critical issue that can severely damage your engine.

Can old spark plugs cause misfires in my turbocharged engine?

Yes, absolutely. Old, worn-out EcoBoost spark plugs increase the electrical resistance needed to jump the gap. As the electrode wears, the gap widens, making it harder for the coil pack to generate a strong, consistent spark, especially when the engine is under heavy load (like accelerating onto the highway or towing). This often results in noticeable engine misfires and a flashing check engine light.

Is it necessary to replace the ignition coils when replacing spark plugs?

It’s generally not mandatory, especially if your coils are relatively new (under 100,000 miles). However, since the high-pressure, high-heat environment of the EcoBoost can stress the coils, it’s highly recommended to replace the coils alongside the F150 spark plugs as preventative maintenance, especially if you are chasing intermittent misfires or if the coils are original and past 80,000 miles.

Does the material (Iridium, Platinum, Ruthenium) really matter?

Yes, the material significantly affects durability and performance in high-heat engines. Iridium offers the best balance of longevity and consistent performance. Ruthenium (the newest technology) provides superior resistance to wear and heat compared to Iridium, often resulting in slightly better low-end torque and responsiveness. Choosing a quality precious metal plug is essential for the long-term health of your 2.7 EcoBoost F150.