Best Replacement Spark Plugs for 5.4 Triton: Top 5 for 2021

Spark plugs are an integral part of your vehicle’s engine. They are responsible for triggering the ignition of fuel to get your car started and ready to go. 

As with all plugs and electrical components, they have a shelf life, and at some point, you will need to replace your spark plug.

Even those with 5.4 Tritons will need to replace their plugs at certain intervals. 

Best Replacement Spark Plugs for 5.4 Triton

But which plug do you need? There are so many replacement spark plugs on the market, and with such a range in price, it’s hard to know which is the best one. 

But before you descend into plug panic, fear not! For we have done all the hard work for you! Keep reading to find the 5 best replacement spark plugs for 5.4 Triton!

We have also added a buyer’s guide and FAQ section so that you can leave here today a spark plug expert! 

In a hurry? Check out our top pick to grab your spark plug and go!

5 Best Replacement Spark Plugs for 5.4 Triton

1. ENA Set of 8 Platinum Spark Plugs

ENA Set of 8 Platinum Spark Plugs Compatible with Ford Lincoln 2004 2005 2006 2007 2008 Superduty F-150 5.4L

ENA offers a fantastic set of 8 platinum spark plugs that won’t break the bank! These plugs are compatible with various Ford models from 2004-2008 and a range of Lincoln vehicles! They are bound to be compatible with your car! 

Before purchasing, be sure to check that your car’s make and model will be compatible with these spark plugs. They are engineered for original equipment or as replacements, great for those making modifications to their engines!

You won’t need to worry about safety with these spark plugs either. Every component within the plug matches or exceeds the OE specifications.

It delivers consistent and superior performance compared to other plugs on the market! You also get a one-year limited warranty with the plugs. There is complete peace of mind with ENA’s spark plugs! 

The platinum used in these plugs provides enhanced durability and performance that will stand the test of time. It also offers a higher melting point, so your engine will not run the risk of melting this plug easily!

The plug is also shocks and vibration resistant so that it can cope with off-road or bumpy driving! 

The center electrode tip wears less than a standard spark plug too. This adds to the longevity of the plug to offer years of reliable service. It features direct pin-to-pin replacement into your vehicle for a quick and easy installation.

ENA’s spark plug is designed with erosion and oxidation-resistant alloy that boosts its longevity too!

Customers praised how well the spark plugs worked! They saw a massive reduction, if not an elimination of misfire when igniting the engine. Customers were also pleased with how quick and easy it was installing the spark plug. 

Some customers did have issues with the plugs not lasting for as long as they would like, with some only lasting a month. This issue was not widely reported, so it should not be an issue. 

Be sure to check that the plugs are suitable for your vehicle and contact customer support if you have any problems. 

If you are after a high-quality spark plug that is sure to stand the test of time, this fantastic value multi-pack from ENA is the one for you!

ProsCons
Affordable multi-pack Some customers noted issues with the plugs not lasting long. 
The plugs match or exceed OE standards
Platinum provides durability and higher melting points
Center electrode offers years of reliable service
1-year warranty
ENA Set of 8 Platinum Spark Plugs Compatible with Ford Lincoln 2004 2005 2006 2007 2008 Superduty F-150 5.4L
287 Reviews
ENA Set of 8 Platinum Spark Plugs Compatible with Ford Lincoln 2004 2005 2006 2007 2008 Superduty F-150 5.4L
  • Platinum Spark Plugs are engineered for original equipment and replacement applications. Every component either matches or improves on the OE design to ensure fast and easy installation with superior performance and reliability
  • These spark plugs provide better durability and performance for better ignitability
  • The center electrode tip wears less than a standard spark plug providing years of reliable service
  • Remedies common spark plug issues such as slow acceleration, poor fuel economy, engine misfires, rough start and idle
  • 1 Year Limited Warranty - Please use enter your vehicle in your Amazon Garage above to see if this part is compatible with your vehicle

More time to browse? Check out our other great options below!

2. MAS Ignition Coil DG508 & Motorcraft Spark Plug (Set of 8)

MAS Ignition Coil DG508 & Motorcraft Spark Plug SP479 compatible with Ford 4.6L 5.4L V8 DG457 DG472 DG491 CROWN VICTORIA EXPEDITION F-150 F-250 MUSTANG LINCOLN MERCURY EXPLORER (Set of 8)

For those after a set of plugs with excellent value for money, MAS Ignition has the ones for you! This set of eight ignition coils and spark plugs are compatible with a wide range of models to provide reliable use. 

Be sure to use the model checker to ensure that the plug will fit your car! Simply enter the year, make, and model of your vehicle for results in seconds!

They are made to achieve or exceed OE specifications and undergo strict quality control testing before being sold to ensure the performance is nothing short of perfection.

You won’t have to worry about safety with these plugs! They also come with a one-year warranty, so satisfaction and safety are guaranteed! 

The coils and plugs are extremely easy to install and are made with high-grade materials. The coils feature a thick copper wire, which promotes higher ignition energy. They also have high heat resistance too and promote low-emissions. 

Using the matching ignition coil and spark plug allows for a soft startup in engines. It provides a comfortable ride and an identical mechanism that is sure to stand the test of time.

The spark plugs work to reduce RFI (Radio-Frequency Interference) and tailpipe issues. This reduces unnecessary fuel burning to improve fuel efficiency and save you money in the long run! 

Customers loved the excellent value for money and found that they lasted well. They worked to fix engine misfire issues common with faulty spark plugs and delivered consistent results. 

While we are confident that these plugs will be a great fit for your 5.4L Triton, some customers did note limitations with these spark plugs and ignition coils’ compatibility. Be sure to check your vehicle is compatible before purchasing to avoid any disappointment! 

MAS ignition’s coils and spark plugs are made of the highest quality and are built to stand the test of time. If you are after reliability, easy installation, and a great price, then look no further! 

ProsCons
A great value multi-pack set of ignition coils and spark plugsCompatibility is not as excellent as other plugs. 
Made to OE standard for optimum performance and reliability
High heat resistance 
Easy to install 
One year warranty 
MAS Ignition Coil DG508 & Motorcraft Spark Plug SP479 compatible with Ford 4.6L 5.4L V8 DG457 DG472 DG491 CROWN VICTORIA EXPEDITION F-150 F-250 MUSTANG LINCOLN MERCURY EXPLORER (Set of 8)
3,044 Reviews
MAS Ignition Coil DG508 & Motorcraft Spark Plug SP479 compatible with Ford 4.6L 5.4L V8 DG457 DG472 DG491 CROWN VICTORIA EXPEDITION F-150 F-250 MUSTANG LINCOLN MERCURY EXPLORER (Set of 8)
  • Please use the year/make/model drop down bar and interchangeable part numbers to confirm compatibility.
  • OE STANDARD: All of the ignition coils are built to achieve or exceed OE specifications, subject to strict quality control testing,offer the best possible performance and dependability. REPLACES REF# DG508
  • MAS ignition coils are easy to install,it use the high grade materials,Each coil is design for specific application, low-emissions, high energy output.High heat resistant compound for our ignition coil on plug boot to withstanding heat stress for longer durability.
  • Replaces part numbers: DG508 SP479 DG457 DG472 DG491 F523 DG508 3W7Z12029AA, COP9 FD503 DG467 DG473 DG481 FD493 DQ50101 FD503T, C566 F7TU12A366AB GN10164 1L2U12029AA 1L2U12A366A
  • MAS PERFORMANCE IGNITION COILS WITH MOTORCRAFT PLUGS SP479 , ONE YEAR LIMITED WARRANTY

3. Set of 8 OEM Motorcraft Platinum SP546 HT13 Spark Plugs

Set of 8 OEM Motorcraft Platinum SP546 (SP515) HT15 Spark Plugs For Ford 5.4L

If you are after a great value pack, OEM’s Motorcraft spark plugs are an excellent option! The set of eight spark plugs provides excellent value for money. 

The plugs feature platinum tips to provide durability and strength to the plugs. They are compatible with a wide range of vehicles too. Thanks to the compatibility checker, you can ensure they are suitable for your vehicle’s make and model before purchasing. 

The high-quality plug provides accuracy allowing for better driving efficiency and reduced fuel consumption. 

It features a singular platinum tip and nickel alloy electrodes. These materials offer outstanding heat resistance and help aid in corrosion resistance. 

The plugs are easy to install and work to keep your engine safe from any obstructions. The extension tip is finely wired to prevent any on-road fouling. What’s great about the plug is it initiates self-cleaning at higher speeds! An excellent feature to have. 

Some customers noted issues with gap erosion. Be sure that the plug properly fills the gap while installing to avoid any issues later down the road.

This was not a widely reported issue, so you should not have any issues. It is always worth checking the one-year warranty to see if you will be covered for any erosion. 

Customers loved the plugs’ longevity, with many citing 100,000 miles of use before needing to be replaced. Some customers even reached 175,000 miles!

You get a fantastic lifespan with these plugs. They advised ensuring you have plenty of time to install the plugs, too, although once you have done it once the process is straightforward. 

These spark plugs are an excellent choice, built with components designed to meet or exceed OEM specifications. They are a reasonably priced bundle set you don’t want to be without! 

ProsCons
Set of 8 multi-packSome customers noted issues with gap erosion.
Platinum tips 
Compatible with a range of vehicles 
Easy to install 
Keeps engine safe from any obstructions 

4. MAS Ignition Coils DG11 with Motorcraft SP515 SP546 Spark Plugs

MAS Ignition Coils DG511 with Motorcraft SP515 SP546 Spark Plugs compatible with Ford Lincoln Mercury V8 V10 4.6l 5.4l 6.8l Compatible with 3L3E12A366CA 5C1584 C1541 FD-508 UF-537 (set of 8)

Another excellent set is these MAS Ignition Coils with Motorcraft Spark plugs. The set of 8 is slightly pricer than others included in this list, but are made from excellent quality. 

Be sure to check when purchasing not only the make and model of your car for compatibility but also whether your boot is curved or not. This information will allow you to select the correct ignition coil from this set if needed.

Having both coils and plugs in this set covers you against any potential engine issues, allowing you to fix them at home quickly. 

The coils are made with the high-quality copper and are designed to reduce the misfire in your engine. You get two choices of spark plugs, SP515 and SP456, which are both recommended by Ford Motor Company, so you know you are in safe hands!

The plugs feature high-quality platinum to deliver higher melting points and are corrosion resistant. They are great for Ford 5.4L models, particularly those made 2004-2008, so we are sure they will be an excellent fit for your Triton! 

A one-year limited warranty backs the plugs and coils so you can use them worry-free! Don’t forget to consult customer service if you encounter any issues with the plugs or coils!

Customers raved about the high-quality of the set and found that their fuel consumption dramatically improved after use. They praised the plugs’ longevity and found they could run them for a reasonable length of time before they needed replacing. 

While they are expensive compared to other plugs on this list, if you have the budget, they are an excellent option!

ProsCons
Compatible with a wide range of vehiclesOn the pricier side 
Multi-pack value, spark plugs, and ignition coils included 
Options for curved and straight boots 
Easy to install 
High-quality copper 
MAS Ignition Coils DG511 with Motorcraft SP515 SP546 Spark Plugs compatible with Ford Lincoln Mercury V8 V10 4.6l 5.4l 6.8l Compatible with 3L3E12A366CA 5C1584 C1541 FD-508 UF-537 (set of 8)
779 Reviews
MAS Ignition Coils DG511 with Motorcraft SP515 SP546 Spark Plugs compatible with Ford Lincoln Mercury V8 V10 4.6l 5.4l 6.8l Compatible with 3L3E12A366CA 5C1584 C1541 FD-508 UF-537 (set of 8)
  • Please use the year/make/model drop down bar and interchangeable part numbers to confirm compatibility.
  • Please check if your boots are curved or straight. The months are important along with year of manufacture. DQ50101 is for Curved Boots and DQ50101D is for Straight Boots.If your original coils are brown boots, you will need DG521.
  • Our replacement ignition coils are design to be easy to install and contains high quality copper for specific application, low emissions and high energy output. The unique winding design would reduce the size and weight without sacrificing the quality. Each coil is design to eliminate misfires and provide maximum voltage.
  • Other Compatible Part Numbers: 5C1584 E508 3L3E-12A366-CA 3L3Z-12029-BA C1659 5C1584 3L3Z12029BA 3L3U12A366BB 3L3E12A366CA 50082 601000 11054 DG-511 DG511 3L3Z 12029 BA 3L3U 12A366 BB 3L3E 12A366 CA
  • MAS PERFORMANCE IGNITION COILS WITH MOTORCRAFT PLUGS SP546 ,MADE OF HIGH QUALITY.One Year Limited Warranty.

5. AD Auto Parts New Motorcraft (SP515) Spark Plug (Pack of 8)

AD Auto Parts New Motorcraft (SP515) Spark Plug, (Pack of 8)

For those who crave outstanding quality and precision, these spark plugs from AD Auto Parts are the one for you!

The SP515 spark plugs are designed, engineered, and recommended by Ford Motor Company, so you know you can put your faith in these!

They are compatible with most vehicles and are recommended specifically for Ford, Lincoln, and Mercury vehicles! 

Be sure to use the vehicle checker before purchasing to ensure your car’s make and model is suitable for the spark plug! As Ford recommends these, you should not have any issues! 

The multi-pack features eight spark plugs at an affordable price, so you will never run out of spark plugs! These are made with platinum tips to deliver high-quality to your plugs.

Platinum offers a high melting point to these spark plugs, providing superior resistance to erosion than other plugs on the market. 

SP515 spark plugs are made with precision in mind. They are top-quality plugs that come with a precise fit to provide enhanced performance and eliminate any gaps. 

The plugs have a mile interval of 60,000 to 100,000, which is very impressive. You will be able to maintain optimum engine performance for the duration of this interval, allowing you to drive worry-free. 

Some customers noted that these spark plugs took a little while to be installed. They suggested a great deal of prep work was needed to ensure that the plugs could be installed without breaking any. 

Once installed, customers praised how well the plugs worked. One customer was even able to get 98,000 miles of use before the plug needed to be replaced! Think of all the road trips you can go on with just one plug! 

If you are after an excellent value pack of premium quality spark plugs, then this set from AD Auto Parts is the one for you!

ProsCons
Affordable multi-packSome customers found the plugs took a while to install.
Recommended by Ford
Top-quality precision to prevent gaps 
High melting point resists erosion 
60,000-100,000 mile intervals 
AD Auto Parts New Motorcraft (SP515) Spark Plug, (Pack of 8)
619 Reviews
AD Auto Parts New Motorcraft (SP515) Spark Plug, (Pack of 8)
  • Designed, engineers, and recommended by Ford Motor Company. Motorcraft stands for quality, dependability, and performance.
  • Fit most automobiles and specialty applications. Recommended for Ford, Lincoln and Mercury vehicles.
  • Provide top quality and precision fit to maximize performance with unmatched coverage.
  • Platinum's high melting point provides superior resistance to erosion resulting in 60,000 to 100,000 mile intervals between spark plug changes, while maintaining optimum engine performance.
  • Pack of 8.

Buyer’s Guide 

Need some guidance with buying your replacement spark plugs,  our buyer’s guide can help you there! 

Compatibility

The first thing you need to determine is whether the spark plug is compatible with your vehicle.

If the plug is not compatible, then you aren’t going to see the right results. Incompatible plugs will not fit properly and often leave gaps, which can cause severe issues down the line. 

Thankfully, choosing the compatible plug is not a game of guesswork! Most manufacturers allow you to check the plug will be compatible by entering your vehicle’s model number.

You will be told whether the plug is compatible or not then. So be sure to have your vehicle’s model number at the ready when searching for your spark plug! 

Materials

As with most electrical devices, the performance of your spark plug relies on good quality materials being used.

The structure of the spark plug should contain metal to ensure excellent strength and longevity. 

Platinum or iridium tip spark plugs are some of the most popular and top-quality spark plugs on the market. Be sure to check the electrode before purchasing to ensure the strength is appropriate. 

Changing Intervals

Unfortunately, no spark plug will last forever, so you must check the estimated service interval on the spark plug.

The estimation is usually given in miles and indicates at what point your plug will need maintenance or be replaced. 

As a general rule, opt for spark plugs that have between 60,000 to 100,000 miles of the estimated service interval.

It is worth noting that these estimates are only estimates. You can get less or more miles depending on your driving, the same you would with fuel. 

How hot can it go?

Another vital factor to consider is the melting point of your replacement spark plug. Your engine will be hot as soon as it starts up, and your plug needs to be able to handle these high temperatures. 

Platinum tips again are a strong choice to consider. They usually have a high melting point and withstand bursting.

Look out for these plugs and pay attention to their melting points. After all, there’s no point replacing the plug if it is going to melt straight away, is there?

Look out for plugs that are advertised as corrosion resistant too. These will have used materials or coatings that will protect the plug’s inner components from any damage. It is always worth checking out customer reviews to see their thoughts on the performance of the plug. 

Easy to install?

When purchasing your spark plug, having one that is easy to install is always a bonus! Thankfully, most spark plug replacements are straightforward to install. 

Keep an eye out for those listed as easy to install or plugs that have been praised for being easy to install by other customers. These are the best options for people who have never changed a spark plug before. 

As with any electrical component, take extra care and ensure you have all the necessary protective equipment. There is also a wealth of tutorials available online should you run into any difficulties. 

How much? 

When it comes to replacement spark plugs, the price can vary depending on the brand and materials used. That does not mean you need to plan a bank heist to get the correct spark plug for you and your needs! 

Be sure to set a clear budget when purchasing your spark plug and stick to it as closely as possible. Consider the materials that you want and how many miles before service when setting your budget. 

Remember that you don’t need a high budget; there is a good quality replacement spark plug to suit every budget!

Warranty

As with any electrical component, checking the warranty before purchasing your spark plug is a good idea. You want to be sure that should anything happen; you will be protected. 

Usually, electrical components will come with a 12-month warranty. This information is generally displayed in the product description or listed in the manual.

It is always worth checking in the warranty section what could void your warranty. Often changes to the internal components by yourself can void warranties, so be sure to check before undertaking any work! 

Frequently Asked Questions

Get your last-minute queries answered here! 

How long do spark plugs last? 

Spark plugs have a decent life, averaging around 100,000 to 120,000 miles with factory service intervals.

The lifespan can vary depending on the material of the spark plug. For example, platinum and iridium plugs can go up to 10,000 miles before needing servicing or replacing.  

How do I know my spark plug has gone bad?

Spark plugs, unfortunately, don’t last forever; they can fail or deteriorate. You can look for common symptoms when they start to wear out, so you aren’t left with a nasty shock when it fails! 

Keep an eye out for a hard startup, slow acceleration, rough idle, engine misfire, surging, hesitating, and low fuel economy. Any of these symptoms or a combination can suggest it is time to replace your spark plug. 

Remember to consult a professional if you have any concerns or hesitations about replacing the plug yourself! 

ENA Set of 8 Platinum Spark Plugs Compatible with Ford Lincoln 2004 2005 2006 2007 2008 Superduty F-150 5.4L
287 Reviews
ENA Set of 8 Platinum Spark Plugs Compatible with Ford Lincoln 2004 2005 2006 2007 2008 Superduty F-150 5.4L
  • Platinum Spark Plugs are engineered for original equipment and replacement applications. Every component either matches or improves on the OE design to ensure fast and easy installation with superior performance and reliability
  • These spark plugs provide better durability and performance for better ignitability
  • The center electrode tip wears less than a standard spark plug providing years of reliable service
  • Remedies common spark plug issues such as slow acceleration, poor fuel economy, engine misfires, rough start and idle
  • 1 Year Limited Warranty - Please use enter your vehicle in your Amazon Garage above to see if this part is compatible with your vehicle
MAS Ignition Coil DG508 & Motorcraft Spark Plug SP479 compatible with Ford 4.6L 5.4L V8 DG457 DG472 DG491 CROWN VICTORIA EXPEDITION F-150 F-250 MUSTANG LINCOLN MERCURY EXPLORER (Set of 8)
3,044 Reviews
MAS Ignition Coil DG508 & Motorcraft Spark Plug SP479 compatible with Ford 4.6L 5.4L V8 DG457 DG472 DG491 CROWN VICTORIA EXPEDITION F-150 F-250 MUSTANG LINCOLN MERCURY EXPLORER (Set of 8)
  • Please use the year/make/model drop down bar and interchangeable part numbers to confirm compatibility.
  • OE STANDARD: All of the ignition coils are built to achieve or exceed OE specifications, subject to strict quality control testing,offer the best possible performance and dependability. REPLACES REF# DG508
  • MAS ignition coils are easy to install,it use the high grade materials,Each coil is design for specific application, low-emissions, high energy output.High heat resistant compound for our ignition coil on plug boot to withstanding heat stress for longer durability.
  • Replaces part numbers: DG508 SP479 DG457 DG472 DG491 F523 DG508 3W7Z12029AA, COP9 FD503 DG467 DG473 DG481 FD493 DQ50101 FD503T, C566 F7TU12A366AB GN10164 1L2U12029AA 1L2U12A366A
  • MAS PERFORMANCE IGNITION COILS WITH MOTORCRAFT PLUGS SP479 , ONE YEAR LIMITED WARRANTY
MAS Ignition Coils DG511 with Motorcraft SP515 SP546 Spark Plugs compatible with Ford Lincoln Mercury V8 V10 4.6l 5.4l 6.8l Compatible with 3L3E12A366CA 5C1584 C1541 FD-508 UF-537 (set of 8)
779 Reviews
MAS Ignition Coils DG511 with Motorcraft SP515 SP546 Spark Plugs compatible with Ford Lincoln Mercury V8 V10 4.6l 5.4l 6.8l Compatible with 3L3E12A366CA 5C1584 C1541 FD-508 UF-537 (set of 8)
  • Please use the year/make/model drop down bar and interchangeable part numbers to confirm compatibility.
  • Please check if your boots are curved or straight. The months are important along with year of manufacture. DQ50101 is for Curved Boots and DQ50101D is for Straight Boots.If your original coils are brown boots, you will need DG521.
  • Our replacement ignition coils are design to be easy to install and contains high quality copper for specific application, low emissions and high energy output. The unique winding design would reduce the size and weight without sacrificing the quality. Each coil is design to eliminate misfires and provide maximum voltage.
  • Other Compatible Part Numbers: 5C1584 E508 3L3E-12A366-CA 3L3Z-12029-BA C1659 5C1584 3L3Z12029BA 3L3U12A366BB 3L3E12A366CA 50082 601000 11054 DG-511 DG511 3L3Z 12029 BA 3L3U 12A366 BB 3L3E 12A366 CA
  • MAS PERFORMANCE IGNITION COILS WITH MOTORCRAFT PLUGS SP546 ,MADE OF HIGH QUALITY.One Year Limited Warranty.
AD Auto Parts New Motorcraft (SP515) Spark Plug, (Pack of 8)
619 Reviews
AD Auto Parts New Motorcraft (SP515) Spark Plug, (Pack of 8)
  • Designed, engineers, and recommended by Ford Motor Company. Motorcraft stands for quality, dependability, and performance.
  • Fit most automobiles and specialty applications. Recommended for Ford, Lincoln and Mercury vehicles.
  • Provide top quality and precision fit to maximize performance with unmatched coverage.
  • Platinum's high melting point provides superior resistance to erosion resulting in 60,000 to 100,000 mile intervals between spark plug changes, while maintaining optimum engine performance.
  • Pack of 8.