Best Spark Plugs for F150 EcoBoost [Buying Guide 2021]

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2. Bosch 9616 Double Iridium Spark Plug

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Copper plugs do well for your Ford, no arguing with that statement. But, if you just don’t want to settle for the average, go for iridium spark plugs.

Better yet, double iridium will promise better performance!

Iridium is the best you can get! It’s the newest technology and gives the highest performance when it comes to sparking plugs.

Therefore, the Bosch 9616 double iridium plug might just be the one for you.

The reason being, the firing pin is made of double iridium and comes with a ground inlay.

Together, they are engineered in such a way to boost the performance up to 4 times when compared with the normal copper plugs.

4 times, let that sink in!

Both of these give the car the performance boost it needs. Working together, they let current flow easily and quickly, hence firing up the car much sooner than the others.

The specifications are very precise. For instance, the firing pin is very fine, measuring only 0.6mm.

Additionally, the firing pin is welded to the base through 360-degree laser welding. As a result, breaking off or becoming loose is not a possibility.

This is the reason why it is durable and goes on when all other plugs die!

Equipped with the best OE spark plug technology, it can end up saving you fuel worth hundreds of dollars over a lifetime.

Not only this, the engine response is excellent.

The guarantee on it is the best:

You get a performance satisfaction guarantee. This means that if you are not satisfied with the performance of the plug and want to return it, you can do so within 7 years.

Interesting, isn’t it?

Moreover, it does not require any gapping.

Yes, it is true:

This is because it has a ribbed insulator design. It has been designed in a way to ensure there is no flashover. Therefore, increasing longevity.

As of now, all you need to do is open the hood and install the plug.

Anti-seize, what is that?

No more tension of applying anti-seizes. The rolled threads are encased in a nickel-plated shell.

The shell itself is corrosion-resistant and anti-seize, so no additional products are required.

The only downside we could find was that it is expensive as compared to the others.

That being said, the price does do justice to the exquisite quality and performance it provides.

Fit for:

It is vehicle-specific. But, the major brands it does with are many. For instance, Ford Escape, Buick, Chevrolet, Camaro, Malibu, Cadillac, GMC, Limited, Fusion F-150 Mustang, Lincoln Mazda Mercury, and many more.

Thus, making it versatile and highly compatible.

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3. E3.74 Automotive Spark Plug

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With the latest technology, the E3 spark plug plays its role in reducing dangerous gas emissions. It reduces hydrocarbon by 42% and CO emissions by 58%.

Those are some figures, aren’t they?

The only catch is that these numbers work for 2 and 4 stroke engines.

Moreover, the best thing about it is that it takes the best from the traditional spark plugs.

For instance, surface gaps and cutback electrodes.

Interestingly, it has a patented design that ensures performance and fuel-efficiency by combining the new DiamondFire electrode technology. Thus, it creates a better spark.

But, how does it happen?

It has an open section which works wonders for letting the current pass through.

Moreover, this terminal end is made of nickel. Thus, it is corrosion-resistant and protects the rest of the engine too.

Offering the deepest projections on the market, this plug protrudes inside the combustion chamber.

Consequently, it offers higher ignitability as compared to others. The reason being, the spark comes near to the most robust fuel/air mixture.

Therefore, making it easy and quick for the spark to pass through.

Firstly, the combustion wave ends up leaving the spark area at higher speeds. Now, the elevated edges come into play.

They provide a sort of chimney effect, which allows the next round of combust fuel/air to come in.

It is a domino effect:

The rule is simple. Just like a domino effect, higher ignitability leads to better performance by reducing fuel consumption.

Overall, it gives a 4% to 13% improvement in fuel efficiency.

One thing that makes it stand out from the rest is that E3 plugs don’t follow the common one size fits all strategy.

They have been carefully tailored with optimized gaps to give a power increase. Talking in numbers, you get a rough 6% – 12 % increase in total.

Edge to edge spark is the new thing:

Undoubtedly, it is the best way for a spark to go ahead. Moreover, the sharp edges initiate electron migrations.

Furthermore, these fast electrons and matter collide. As a result, the entire electrons come into play and create a plasma channel.

It makes the movement of the spark easier throughout the spark plug. This cycle continues and is the reason for the almost zero carbon footprint.

Uniquely designed, the two supporting legs on the plug allow for better heat dissipation. The middle, nickel alloy core also plays its role in heat dissipation.

It comes with a limited warranty of 5 years. You need to change and check the spark plugs after every 100,000 miles.

The only issue is that they give a sort of a jerk to the engine at times. It’s a slight one, but after every 10-15 times, the engine gives a jerk.

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4. Motorcraft SP-479 Spark – Better Engine Performance, No Misfires

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Is your car not giving you the fuel mileage it used to give before? Are you facing difficulty when it comes to starting your vehicle?

SP – 479 is the plug to have!

If optimum engine performance is the thing you are looking for, this will turn out to be a good purchase. Better yet, it is a direct replacement.

What does it mean?

It means that they are JUST THE SAME as the factory-installed ones, but at a lower price.

Moreover, it is compatible with both ignition systems: coil-on and distributor-equipped.

The most interesting feature is that it is recommended by Ford itself. The reason is simple, it offers all the features required, but at affordable prices.

Versatility is its forte:

It can be used as a direct replacement for not only Ford but also Lincoln and Mercury. With a chrome exterior and platinum interior, it is one power plug.

Platinum has a very high melting point. Therefore, it provides high resistance to erosion and keeps the engine safe.

Additionally, it has a gap of 0.054” when it comes out of the box. Due to high performance, you will need to get the plugs serviced at 60,000 miles and then 100,000 miles.

There is no more tension of misfires or any acceleration issues when you buy this plug.

The only downside to it is that it comes as a standalone plug. There is no installation hardware or complete kit.

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5. NGK # 6509 Iridium Spark Plug

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Who hasn’t heard of NGK? It is a big brand that has made a huge name in a little time.

NGK # 6509 is specially designed for people who value performance over anything else.

Got your attention, haven’t we?

The center electrode is made of fine wire iridium. Therefore, the sparks are consistent and the combustion cycle does not break.

As a result, they last longer and are durable. Best of all, the spark is consistent and does not go out. Hence, there are no misfires or jerks.

When compared to the platinum-centered spark plugs by Motorcraft reviewed above, we can see both have a very high melting point.

But, iridium takes the lead!

The iridium alloy has a melting point of 2,466 degrees Celsius. Seems almost impossible to melt, right?

Because of this, all the high-performance, top-of-the-line vehicles prefer iridium over the other materials.

So, it works for all the engines of today. After all, the engines require more power and torque when compared to the ones 50 years ago.

The exterior plating is made of trivalent metal. Thus, the plug exhibits anti-seize and anti-corrosion properties.

Higher longevity: a dream come true!

If you look closely, the insulator nose is longer than normal. Therefore, the structure limits fouling.

As there is less built-up of unwanted debris and dirt, the life of the spark plug is increased in the long run.

The trick for good performance lies in the life of the flame and how long does it expand.

For this, the electrode shape is tapered cut and made specially keeping in mind the nature of the flame. It encourages quicker flame expansion.

The flame travels faster and reaches the air/fuel mixture sooner.

Additionally, the plugs are pre-gapped and you don’t need to spend precious time trying to get the gap right.

Consequently, it makes the installation process easier. Lastly, it comes in a pack of 6.

The only downside is that the check engine light comes on very frequently. Yes, that is a hassle.

Once you switch the engine off and on again, it goes off and there is no issue.

You can get free shipping if you are living in the USA or the areas nearby.

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6. FilterTech SP580 Iridium Spark – The Best Your Vehicle Can Get

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Are you afraid that aftermarket spark plugs will not work well with your Ford? Don’t want to ruin the engine and lead to underperformance?

Looking for an affordable but high-quality spark plug that will do the trick?

What to do now?

The next best thing to the original is getting genuine OEM parts. These will lead to the best performance and higher durability.

Undoubtedly, Motorcraft is a well-known established brand that produces spark plugs.

Plus, you can be sure about the quality of the plugs by the fact that Ford officially backs the brand.

Yes, this means by buying these plugs, you can get the next thing to the original.

Pre-gaping does the trick: 

As you can see, all the plugs reviewed up till now are pre-gapped and don’t need any manual tweaking. So, how is this one different?

Well, the difference is that this comes as close to the perfect figure as possible.

Surprisingly, it is pre-gapped at 0.032” when it comes out of the best. However, the best range is 0.030” and 0.032”.

Once we installed it, one of the things that stood out was the excellent gas mileage we got from our truck. There was no misfiring, no compatibility issue, and no built-up.

The iridium has a very high melting point. Thus, it gives the torque and power required for the engine to perform well.

Lastly, you get a pack of 6 at a very affordable price. You get excellent service with Overstock Direct. All these features make it versatile.

The only downside is that if you don’t check the spark plug against your vehicle, it will not fit.

Apparently, your original plug and this plug can look exactly alike and still not fit. So, don’t go ahead and buy it only by looking at the picture, see if they fit or not.

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7. AD Auto Parts Spark Plug – High Strength, Extremely Reliable

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Looking for an extended tipped spark plug for your car or truck; this is exactly what you need!

It is one of the best spark plugs for the Ford F150 EcoBoost.

Needless to say, this plug provides you with fascinating performance. There is no compromise in performance if you choose this plug for your car.

Besides that, it is extremely reliable and that is what we all look for while buying a product for whatever use, reliability is the most important.

When you are driving a car, spark plugs play an important part in its performance.

Your engine’s performance depends on the plugs that you use and they need to be of the best quality.

No need to worry, these plugs, however, are strong enough so you do not have to worry about them breaking.

Worried about the applications?

Firstly, you can use this plug for any type of car. Doesn’t matter if your car is domestic or imported.

Other than that, it is also perfect to use for a truck if you have one, or if you are looking for a spark plug for your truck.

Moreover, it is included in the best spark plugs for the 2013 and 2014F150 EcoBoost.

Undoubtedly, these plugs prove to be perfect if you want to use them in your truck but it is also recommended to replace the plugs after 75,000 to 100,000 miles so it is important to keep a check.

Who doesn’t want that? You can use this plugin for your car as well as your truck.

Secondly, its extended tip can fit almost any automotive along with many special applications. Isn’t that fascinating?

The best part, you can use it for a truck of any size or make.

In addition to all this, it possesses enhanced electrode fine-wire with a double-platinum coating which makes it better than most plugs.

Last but not the least, it has a steel thread that offers extreme strength along with a fine design for the wire which is approximately 0.8 millimeters.

However, it might give a tick sound or stutter to your vehicle, if that happens, you need to change or replace the plugs as soon as you can.

It is the same with every kind of plugin every vehicle that is out there.

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8. NGK Iridium IX Spark Plug – Anti-Seizing and Anti-Corrosion

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Struggling to find a plug for your high-performance, high-tech engine?

Look no more. This is the right product for you and also among the ideal spark plugs for the Ford F150 EcoBoost.

Are you worried about reliability and quality?

Do not worry because it promises zero compromises when it comes to quality or its reliability.

Secondly, this is not a complicated product, so this plug requires no assembly.

For a good performance overall, the company uses durable and reliable material for the manufacturing of this plug.

Other than that, the company uses iridium to construct the plug’s tip offering extreme durability.

The best thing about it is that it offers anti-seizing and anti-corrosion properties. You can rely on this plug for your car without any worry.

It offers good performance without any compromise.

Needless to say, the worst part about car spark plugs is that they corrode after some time, which also messes up the performance of your vehicle.

After a few miles, the plug starts to get rusty. However, if you have this plug, you do not have to worry about efficiency.

Adding to this, they use an iridium alloy to construct this plug. It offers a very high melting point which boosts the performance of your engine.

This plug is ideal for a high-performance and high-tech engine in the contemporary world.

Besides all this, this plug is specially manufactured for perfect ignitability providing excellent performance.

Secondly, it is constructed with such a material that is highly abrasion and corrosion-resistant.

Thirdly, it has the smallest diameter of its tip.

Other than that, the iridium used for its manufacturing offers lower emissions, fuel efficiency, excellent anti-fouling, and a very slow wearing rate which provides good durability.

Lastly, you can easily install it without any hassle and it also ensures longevity.

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9. Denso (4719) ITV20TT Iridium TT Spark Plug

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Do you want a spark plug that proves to be economical but also provides more power to your engine? Here it is!

As might be expected, it is difficult to find a spark plug that is fuel-efficient and at the same time offers maximum performance for your engine, but it is possible.

Undoubtedly, this plug is manufactured in a way to provides more power and less fuel consumption.

Do not worry about the application!

It provides a wide range of applications for most models and makes today that you can find on the roads!

Also, one of the best spark plugs for 3.5 EcoBoost and 2.3 EcoBoost.

Moreover, its center electrode is made of iridium with a diameter as small as 0.4 millimeters.

And platinum is used to construct its ground electrode having a diameter of 0.7 millimeters.

Other than that, it has a larger spark compared to other spark plugs that provide more power to the engine, but the plus point is that it is extremely fuel-efficient.

So, you get more power with enhanced performance.

This plug’s striking features include its spark energy, of course, making it ideal for enhanced performance and improved acceleration.

Secondly, it has the smallest diameter of its electrode. Its electrodes (center and ground) maximize the ignitability and lessens the spark interference as much as possible.

It provides better torque and power and also makes it economical.

Thirdly, it is highly durable due to its iridium alloy (patented) which offers a maximum iridium concentration which makes it much more reliable and durable.

It also improves the spark and the plug life.

Another amazing feature: the threads of the plug are machine-rolled that also prevents cross-threading or seizing when you install the plug or remove the plug.

Everything is so easy with this one, isn’t it?

Adding to this, it is also pre-fired, which means it is the best quality product. Who wouldn’t want something like this?

Inter alia, its insulator is constructed using an alumina powder (purified) that offers outstanding strength as well as thermal conductivity.

Its insulator has five ribs that also stop flashovers.

To sum it all up, there is no compromise in the quality of this spark plug as well as no compromise in its performance.

And it offers a warranty of about 12 months along with a 100,000 miles longevity. Its resistor value is 5,000 Ohm and its heat range is 20.

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10. ACDelco 41-988 Iridium Spark Plug

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If you are looking for extremely smooth engine performance and high idle stability for your vehicle, this is the plug that you need.

The best thing about it is that:

This plug will restore your engine’s ignition. It is going to provide you with a perfect fit. Along with that, it is highly resistant, does not wear or tear.

You get everything you need to be packed in this one product.

It is manufactured in a specific way that is going to meet your expectations for its form, function, and fit. Besides that, it offers great value and high quality.

Secondly, it enhances your vehicle’s performance to the maximum including the police vehicles as well.

This plug offers excellent and smooth performance for your vehicle. Along with that, it provides perfect idle stability for your engine.

Also, it has efficient, small designs for the electrode which offers quick acceleration and reliable ignition or cold starting.

Besides, its fine-wire iridium electrode burns away the carbon on its own as it starts to form on the plug’s tip.

Isn’t it amazing?

Unless it is time to replace it, your plug will never wear out or become rusty.

Additionally, the radio frequencies that might harm your vehicle or its electronics are also blocked by the suppressor seal in this plug.

It is amazing and helpful. You need to stop worrying about a lot of things if you choose to use this plugin in your car.

Another striking feature:

It also prevents combustion leakage and its seal meters spark maximum energy for a long and durable electrode life.

Adding to all this, it is engineered for and focuses on extreme durability and rigorous standards.

Last but not the least, it offers a wide range of applications to a wide range of cars, whether domestic or imported.

Plus, you get a 7-year warranty for this plug with unlimited miles.