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Best Replacement Spark Plugs For 5.4 Triton: Top Picks & In-Depth Analysis


We know what you’re looking for: the best replacement spark plugs for 5.4 tritons. There are 12 top-rated goods to choose from here, all of which will allow you to start your engine at full throttle.

To get the engine going, gasoline is ignited using spark plugs. While the system is vulnerable to several factors, this is a fundamental feature. You’re well aware that each and every plug has a limited lifespan. And you’ll need to change it regularly. Even with your 5.4 tritons, this holds.

Look for distressed components all over the internet? Plugs that last a long time can be found here.

For 5.4 tritons, we describe only those plugs that can be used as replacements for OEMs and show you how to do so. Plugs made by genuine aftermarket manufacturers will do the trick! 

In a Hurry? Why Not Check Our Top 3 Picks?

HERKO 8 OEM Motorcraft Platinum SP546 Spark Plugs
HERKO 8 OEM Motorcraft Platinum SP546 Spark Plugs

Brand: Herko Automotive
Weight: 14.9 ounces
Dimensions: 4.61 x 4.02 x 2.44 inches

ENA Set of 8 Platinum Spark Plugs
ENA Set of 8 Platinum Spark Plugs

Brand: ENA
Weight: 1.05 pounds
Dimensions: 4.3 x 3.9 x 1.9 inches

AD AUTO New OEM Replacement Platinum Spark Plug
AD AUTO New OEM Replacement Platinum Spark Plug

Brand: AD Auto Parts
Weight: 11.2 ounces
Dimensions: 4 x 3.8 x 2 inches

What Occurs If You Don’t Replace Your Spark Plugs?

Every spark plug eventually loses the ability to generate significant bursts of energy over time. Increased internal heat, deposits, and exposure to various factors reduce the device’s efficiency.

When your car begins to offer you early warning signs, you’ll know something is wrong. There is a lack of responsive acceleration, unstable idling, and frequent misfires.

How to Choose Spark Plugs for 5.4 Triton?

It’s easy to become disoriented and unable to decide these days because there are so many options accessible. For additional details, please continue reading:

Make sure you choose a spark plug with an iridium or platinum tip. Because the other materials may not last as long, these two are the best options at this time. If properly cared for, they may endure for up to 100,000 kilometers.

The melting point should also be considered—platinum spark plugs, which can tolerate extremely high temperatures, win this competition. Pre-gapped plugs and OE replacements are the most straightforward plugs to install.

If you buy the wrong spark plugs for 5.4 triton 3v and try to shove them in, the engine will have many problems.

When Should You Change Your Spark Plugs?

Change Spark Plugs

A motorist can pick up on a plethora of warning indicators just by paying attention to, touching, or even listening to their spark plugs. Spark plugs that are too old or defective are to blame. 

Most work is done by this little section, even though it’s so tiny. If you want to know when to replace anything, look for the following sign:

In the opinion of most mechanics, the check engine light comes on as a result of failing spark plugs.

If it’s terrible, you’ll notice that your automobile has difficulty starting. This gadget is telling you to get a new one right away.

Your car’s gas mileage will gradually drop if your spark plugs are defective. It implies that you may have to fill up the petrol tank more frequently than you usually.

An annoying sound is produced when the spark plugs in your vehicle are not working correctly. Replace your old spark plugs when you hear the engine making a squealing sound.

Buying Guide for the Best Replacement Spark Plugs for 5.4 Triton

A working spark plug is an absolute necessity if you want your engine to run correctly. Engines that cannot start due to faulty plugs will not run at all.

The best spark plugs for 5.4 tritons are challenging to find all at once. However, the following information can help you make a decision.

Materials for Constructing:

Construction quality has a direct impact on total performance. Metal is a part of the framework, but you can’t obtain anything other than recommended.

5.4 triton spark plugs with platinum or iridium tips are widely available. To guarantee enough strength, you’d best scrutinize the electrode.

Changing the Intervals:

Spark plugs are not meant to endure indefinitely. The anticipated servicing interval is where you need to pay attention.

Spark plugs with a 60000 – 100000 mile interval are preferred. You may, of course, acquire more intervals based on your driving style.

The melting point:

There is a significant amount of heat stress on the engine system as it is starting up. Platinum tips have a higher melting point and can better tolerate a burst of air pressure.

Heat resistance lessens the likelihood of internal component corrosion. It is possible to estimate the melting point using several established methods.

Installation Ease:

Many folks have difficulty putting in the plug. First-time users, not intermediate or advanced users, are most likely to encounter this issue. Something that doesn’t require skill or experience is best for you.

Compatibility between vehicles:

Even though it’s the last step, it’s unquestionably the most important when making a decision. No matter how good a substitute could be, it won’t help.

Almost all automakers allow customers to verify compatibility by entering their vehicle’s model number. Unwanted holes in a poorly-fitting garment might lead to problems in the future.


Excellent Plugs are of exceptional quality and will last a long time. Spark plugs must be of high quality if you want to get the most out of your vehicle’s performance and coverage.

Using any plugs described in this post will provide you with a long-lasting and high-quality experience.


Prices for spark plugs vary widely. The price of a plug is often the first thing consumers think about when deciding whether or not to buy a product. However, this isn’t how things should be. You will lose if you do this.

Before you buy, take into account all of the other important considerations. Some of the less expensive spark plugs might wind up costing you a lot of money in the long run. 

Furthermore, just because a plug costs a lot doesn’t guarantee excellent performance. Some plugs are nothing more than a gimmick to boost sales.

Before purchasing a plug, make sure you have all of the characteristics and standards that you need.

Motorcraft SP546 vs. SP515

I think you heard about the Motorcraft spark plugs for 5.4 tritons. Motorcraft’s SP546 and SP515 give good performance for engines that can use them. 

The car plug system SP515 is a dated one from the 1960s. However, compared to SP507, SP546 has several enhancements. 

Many would choose SP515 over SP507, of course. It’s true that in terms of applicability, they have a lot in common.

The prognosis is very consistent from top to bottom. Socket sizes and seat measurements are nearly identical. Both sockets are 9/16″ in diameter. In addition, the seat is 16mm thick, which is equivalent to 3/8″.

There is a noticeable change in the compressed spring’s length. In addition, the structure’s spring seat depth is a consideration. SP546 is 0.10″ shorter in length than SP515.

The bottom ground electrode of the current model is wieldable. However, from a technical standpoint, SP515 is deficient in this respect. An internal magnet in the SP515 plug socket allows it to travel the whole length of the plug. 

Nevertheless, SP546 frequently exhibits a strange variance in this particular area. The construction exposes roughly half of the hexagonal proportion.

To tell the two models apart, there are a few key differences. Any new consumer will find it challenging. Not to add, there are several SP546/SP515-labeled models out there. Remain cautious if you don’t want the trouble of product replacements.

1. HERKO 8 OEM Motorcraft Platinum SP546 Spark Plugs – Best Overall


  • Brand‎: Herko Automotive
  • Weight‎: 14.9 ounces
  • Dimensions: ‎4.61 x 4.02 x 2.44 inches
  • Manufacturer Number‎: SP515

Here comes our best overall pick for the spark plug 5.4 TritonIt is produced by the famous brand Motorcraft. 

It’s already Amazon’s top recommendation, and we think you’ll agree that it’s the best of the plugs we’ll show you. You won’t find a plug like this anyplace else.

A package of eight Motorcraft spark plugs is included. You can count on all of them to function up to OEM specifications because they’ve been thoroughly tested.

When you think about it, these plugs will fit flawlessly over your 5.4 Triton.

The nickel-ally electrodes accompanying these plugs are another feature you’ll like because it enhances their performance.

You can anticipate the plugs to arrive in good shape if you get them from Amazon. To ensure that the plugs arrive in perfect condition, Motorcraft has placed the plugs in the appropriate shipping boxes.

A one-year guarantee backs the plug for further peace of mind.


  • Made by high-quality materials.
  • Powerful and long-lasting.
  • Exceptional heat and misfire resistance.
  • This vehicle has a very long service life expectancy.
  • The engine can self-clean itself.


  • It may appear that gaps are insufficient.

2. ENA Set of 8 Platinum Spark Plugs – Runner Up


  • Brand: ‎ENA
  • Weight‎: 1.05 pounds
  • Package Dimensions‎: 4.3 x 3.9 x 1.9 inches
  • Exterior‎: Textured

The vehicle’s outstanding performance is made possible by the engine fuel being ignited smoothly. Every facet of the 8-piece plug bundle is satisfied. Users can easily change it thanks to its innovative design.

When a system is designed practically, it may be included in the mechanism immediately. And the compatibility with most 2004 to 2008 Fords is still adequate.

Durable materials and a well-balanced design make it handy. High shock and vibration resistance makes the plug ideal for harsh environments.

Additional firing pins are included on the OE equivalent electrode. It removes the possibility of an accidental misfire. Smooth operation is made possible by the addition of supporting thread and shell.

Installation is a breeze thanks to pin-to-pin adjustability. And the compatibility here is incredible. It’s a good fit for various Ford, Lincoln, and Mercury cars.


  • The OE standard design is superior.
  • The heat dissipation is excellent.
  • The ability to start the engine has been improved.
  • Engine maintenance lasts for years.


  • There are some compatibility problems.

3. AD AUTO New OEM Replacement Platinum Spark Plug – Also Great


  • Brand‎: AD Auto Parts
  • Item Weight‎: 11.2 ounces
  • Dimensions‎: 4 x 3.8 x 2 inches

If you’re looking for the best aftermarket spark plugs for 5.4 tritons, go no further than the Motorcraft SP509 eight-plug set. This set of eight spark plugs is appropriate for your Ford 150s v8 triton engine.

Put these on the 2001 Ford F150 Super crew, and it’s clear to see how much of a difference they make. 

The engine fires up more quickly, thanks to the small platinum wire tips. The better performance of the plugs can also be attributed to the nickel alloy electrodes. You can expect these plugs to last for a long time. 

Despite the fact that these plugs are straightforward to install once you’ve done so, they advised that you give yourself plenty of time to do so.


  • Designed to withstand rust.
  • Prevents inaccurate misfires.
  • The process is straightforward.
  • It gets off to a faster start than most others.


  • Unfortunately, compatibility isn’t great.

4. Autolite HT15-4PK Platinum Spark Plug


  • Brand: Autolite
  • Core Material: Platinum
  • Vehicle Service Type: Car

Autolite is a well-known producer of ‘Platinum High Thread Spark Plugs,’ which have an OE design that is unique and patented. With the plugs, you’ll receive more sturdiness and more power.

In addition, the HT15-4PK Spark Plug ensures that your car’s engine operates at its best. You may get a pack of four spark plugs from Fram. For the third time, Autolite Spark Plugs have shown to be the ideal choice.

Motorcraft 546 are excellent at what they do, performing better at high RPMs. There is no question that Fram spark plugs have recently been rated as the hotter plugs.

Ford’s 4.6L, 5.4L, and 6.8L 3-valve engines benefit from increased horsepower and High Strength Steel technology. It’s the best spark plugs for 5.4 triton 2 valve.


  • Affordable.
  • Durable plug.
  • Improved horsepower.
  • No gap erosion.
  • It delivers improved fuel efficiency.


  • Complicated installation for beginners.

5. MAS Ignition Coil DG508 & Motorcraft Spark Plug SP479


  • Manufacturer‎: King Auto Parts
  • Brand‎: MAS
  • Item Weight‎: 4.1 pounds
  • Package Dimensions‎: 11.5 x 9.88 x 3.82 inches

You can’t neglect this spark plug combination. It’s on our list because we can’t think of anything better. 

For those who require both an ignition coil and a spark plug, this is the best option. There are eight of these, and they’re great value for the money. Let’s take a quick look at the qualities that make it unique:

The system is designed to enhance engine performance, reduce radio frequency interference (RFI) emissions, improve fuel efficiency, and reduce emissions from the exhaust pipe.

Since the gap has been a problem for so many people, we recommend checking with the manufacturer before purchasing. As soon as you purchase the product, you’re on your own.

It’s possible to get a replacement under guarantee for this product.


  • MAS Ignition is a great value multi-pack.
  • Excellent resilience to heat.
  • The OE standard ensures the highest level of performance possible.
  • It’s easy to install.


  • Expensive.

6. NGK 3186 G-Power Platinum Spark Plugs TR5GP


  • Brand‎: NGK
  • Package Dimensions: ‎7.72 x 4.92 x 1.06 inches
  • Item model number‎TR5GP

Ngk spark plugs for 5.4 tritons is one of the world’s leading spark plug manufacturers, with a reputation for manufacturing high-quality spark plugs at a competitive price.

By putting your vehicle’s details into the search query, you can ensure that these are the correct spark plugs for your engine.

NGK’s spark plugs and coils are of the highest caliber, and they are designed to last a lifetime. Smoothness and long-term dependability are the hallmarks of this vehicle. There is no better value in the market for reliability, simplicity, and affordability than this!


  • G-Power Platinum.
  • Affordable.
  • Excellent value for the money.
  • Extraordinary heat resistance.


  • No OEM.

7. Autolite AP5325-4PK Platinum Spark Plug


  • Brand‎: Autolite
  • Model‎: AP5325-4PK
  • Item Weight‎: 8.4 ounces
  • Product Dimensions‎: 3.38 x 1 x 1 inches

The Autolite Platinum AP5325-4PK Spark Plugs are designed to last longer than copper plugs of the same size and shape. Faster acceleration and better fuel efficiency are advantages of using Autolite Platinum Spark Plugs.

All makes and models of foreign and domestic vehicles can benefit from Autolite spark plugs, which are the most cost-effective alternative to OE spark plugs. Aftermarket and OEM companies rely on Autolite for high-quality ignition devices, and the company is a top source for spark plug replacements.


  • Cheap.
  • No gap erosion.
  • Platinum alloy pad.
  • Electrode ignites more quickly and more efficiently.


  • Not that durable.

8. Champion 7989 Double Platinum Spark Plug


  • Brand‎: Champion
  • Model: ‎7989
  • Item Weight‎: 5.6 ounces
  • Product Dimensions: ‎0.5 x 0.25 x 0.1 inches

However, despite stiff competition from brands like Motor Craft, Champion Spark Plugs have managed to hold on to their position as one of the most popular.

In the same way, we’ve included them on our list as well. No matter which Ford 5.4 Triton model you own, you can count on the Champion Spark Plugs 79894 pack to do the job right every time. What are some of the benefits? Continue reading to learn more!

The outside of the spark plugs has been machined. Those who have used these spark plugs claim that they are more durable than their rivals. Why, despite their high price tag, are they more popular than the rest?

The core electrode of these devices has a platinum tip, making it of the highest caliber. It’s also possible that this is why they’re so expensive. After a few thousand kilometers, it has been reported that these spark plugs break.

Instead of taking a chance, you might go with one of the many other low-cost and dependable alternatives.


  • Affordable Price.
  • Platinum tipped center electrode.
  • Reliable options.
  • Resistance to Heat Stress.


  • Not that enduring.

9. Motorcraft SP-515 Spark Plug


  • Brand‎: Motorcraft
  • Model‎: SP515
  • Weight: ‎3 pounds
  • Product Dimensions‎: 6 x 3 x 3 inches

A comprehensive laboratory feature boosts the engine’s performance. SP 515 will work with any 5.4 tritons with a 3-valve system just well. This model is strongly suggested for a successful outcome. 

The central electrode is identifiable in the construction. During cold starting, its carefully wired architecture reduces the voltage. As a result, getting your car started is now more convenient than ever.


  • Affordable.
  • Despite significant progress, inefficiency has persisted.
  • The engine of the car has been strengthened.
  • Enhanced security throughout the initialization process.


  • For the untrained, this is a complex installation.

10. Autolite HT15 Platinum High Thread Spark Plug


  • Brand: Autolite
  • Core Material: Platinum
  • Top Material Type: Alloy Steel

The Autolite Spark Plug is an additional option worth investigating. Autolite products are of the highest quality and cheaply priced so that you can expect nothing but the best.

They stick to the original equipment specifications for dependable and high-quality performance. 

All spark plugs come with a ground shield strap made of a single component. This is critical because it improves the efficiency of heat transfer.

In their construction, nickel alloy side electrodes are employed. Because of the design and high-strength steel technology, they are replacing the spark plug is a simple task. 

In addition to the 5.4 Triton engine, the spark plugs are also compatible with the 4.6 and 6.8 three-valve engines.


  • Exceptional OE-standard design.
  • An increase in the power of the ignition.
  • It dissipates heat quite well.
  • Long-lasting engine servicing.


  • Installation is a lengthy process.

11. E3 Automotive E3.70 Spark Plug


  • Brand: E3 Spark Plugs
  • Gap Size: 0.04 Inches
  • Top Material Type: Alloy Steel

If you have a 5.4 Triton, you may be in the market for a performance plug. E3 could be a good option.

You may expect improved performance at higher RPMs with the help of these American-made spark plugs.

They have a diamond-shaped ground electrode with three legs connected to the shell for better heat transfer and combustion chamber turbulence.


  • Reduces the amount of fuel used.
  • Designed to withstand lower temperatures
  • Five-year/100,000-mile warranty.


  • Spark plug failures were a common complaint from certain consumers.

12. MAS Ignition Coils DG511 with Motorcraft SP515 & SP546 Spark Plugs


  • Brand: MAS
  • Item Dimensions: 10.2 x 2.1 x 7.4 inches
  • Item Weight: 3.3 Pounds

For more than two decades, customers have relied on MAS as a source for high-performance fuel and ignition systems.

If you’re seeking the greatest triton v10 spark plugs, go no further than MAS Ignition DG511! This eight-piece kit of ignition coils and spark plugs has been engineered to guarantee reliable operation for a range of vehicles.

Make sure you use the model checker to see if the plug is compatible with your car! Instant results are available by entering your vehicle’s year, make, and model. The coils are made with thick copper wire, which increases the ignition’s power.

Aside from their heat-resistant properties, they also promote low emissions. A smooth start in engines is made possible by utilizing the proper ignition coil and spark plug.


  • This is an excellent value multi-pack.
  • Excellent resilience to heat.
  • The OE standard ensures the highest level of performance possible.
  • It’s easy to put together.


  • Incompatibility is a problem.

Final Verdict

In this post, we spoke about the “Best Spark Plugs for 5.4 Triton.” In order to guarantee an effective replacement and totally cleanse the engine’s start and fuel efficiency, spark plugs are essential. To guarantee a smooth start, the new plugs will fit all of your vehicle’s specifications.

Hammer and Coop recommends the HERKO 8 OEM Motorcraft Platinum SP546 as the best overall pick. 

Note: You can click here to read our recent review about the Best Spark Plugs For Mustang V6.

Spark Plugs


What If The Old Spark Plugs Break Off?

The original spark plugs have a design flaw that causes this problem.

Don’t worry if you locate a damaged spark plug. It’s a manufacturing flaw. Please contact your local Ford dealer to see what they can do to assist you with your refund request.

How often should you change spark plugs on 5.4 Triton?

The plugs should be changed at 100,000 miles if there are no difficulties. If you experience frequent misfires, rough handling, low fuel efficiency, or other issues, you should examine and replace the spark plugs before this number.

Do spark plugs last?

Spark plugs should last 100,000-120,000 miles under typical operating circumstances and specified service intervals. The material utilized to produce a spark plug might affect its longevity.

Why a spark plug?

A spark plug is a vehicle component that ignites gasoline by heating it. It connects the ignition coil to the cylinder head.

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