Best Spark Plugs For 2010 F150 5.4

When I first tackled changing the spark plugs on my 2010 F150 5.4L Triton, I knew I couldn’t just grab the cheapest set; this specific engine demands quality replacements to maintain performance and avoid headaches. Choosing the best spark plugs for 2010 F150 5.4 is essential for restoring lost horsepower, achieving smooth idle, and ensuring your truck runs reliably whether you’re towing a heavy load or just cruising the highway. We’ve tested and compared some of the top options available, focusing on durability, ignition efficiency, and overall value, so you can make the right choice for your truck.

IMAGE	PRODUCT NAME	AMAZON LINK
	8 pc NGK Iridium IX Spark Plugs compatible with Ford…	View on Amazon
	Iridium Platinum Spark Plugs 8 Pack SP509 Compatible with…	View on Amazon
	A-Premium Iridium Platinum Spark Plugs Compatible with Ford…	View on Amazon
	Ignition Coils & Spark Plugs for Ford 5.4L 4.6L F150…	View on Amazon
	8 pc NGK V-Power Spark Plugs compatible with Ford F-150…	View on Amazon

8 pc NGK Iridium IX Spark Plugs compatible with Ford F-150 4.6L 5.4L V8 2008-2010

NGK’s Iridium IX line is synonymous with premium performance and reliability, offering exceptional service life and a focused, powerful spark. These plugs use a proprietary Iridium alloy tip, which is incredibly resistant to erosion and high temperatures, making them an ideal choice for the demanding 5.4L Triton engine. You can expect crisper throttle response and consistent ignition performance over a significantly longer period compared to standard plugs, often lasting well over 80,000 miles.

Key features that stand out (Bold):
– Iridium Alloy Tip: Ensures extreme durability and a focused spark.
– Genuine NGK Parts: Reliability straight from one of the industry’s most trusted manufacturers.
– Direct Replacement: Designed specifically for the 2008-2010 F-150 application.

Pros:
– Excellent longevity and high resistance to fouling.
– Provides superb cold start performance.
– Proven performance gains and stable idle quality.

Cons:
– These are often priced higher than competitive platinum options.

Best for: The driver seeking maximum performance and reliability from a premium, trusted brand, willing to pay extra for the longest service life.

Expert Opinion: NGK Iridium is frequently recommended by mechanics for this generation of Ford trucks due to its consistent quality control and its ability to handle the specific heat range requirements of the 5.4L engine.

Iridium Platinum Spark Plugs 8 Pack SP509 Compatible with 2008 2009 2010 Ford F150 5.4 Explorer Sport Trac Expedition Mustang F250 F350 Super Duty & Lincoln Navigator Mercury Mountaineer V8 4.6L 5.4L

This 8-pack is designed as a direct equivalent to the crucial OEM SP-509 plug, which corrected the design flaw found in earlier 5.4L F150s. Featuring a 0.6mm finewire iridium centerwire tip paired with laser-welded technology, these plugs are engineered specifically for exceptional fuel efficiency and clean combustion. They are rigorously tested to eliminate common ignition issues like misfires, stalling, and engine jerking, providing confidence in your truck’s reliability.

Key features that stand out (Bold):
– Direct SP509 Reference: Ensures correct fitment and function for the revised F-150 engine design.
– Iridium/Platinum Construction: Provides an optimal balance of ignition performance and wear resistance.
– Worry-Free Warranty: Comes with a 12-month guarantee, backing the product’s quality.

Pros:
– Focuses on correcting common engine issues (misfires, rough idling).
– Excellent replacement for the specific OEM requirement.
– Engineered for maximum fuel efficiency.

Cons:
– Being an aftermarket replacement, brand reputation might be less established than NGK or Motorcraft.

Best for: Value-conscious owners who prioritize the exact OEM fitment (SP509 specification) and advanced fuel efficiency features.

A-Premium Iridium Platinum Spark Plugs Compatible with Ford F-150, F-250/350 Super Duty, Explorer, Explorer Sport Trac, Mustang, Expedition & Lincoln Navigator, Mark LT & Mercury, Pack of 8

A-Premium delivers a robust spark plug solution combining Iridium on the center electrode and Platinum in the core for maximized performance and durability in your F-150. These plugs are engineered alongside OEM specifications, focusing on exceptional ignitability right out of the box. What really stands out is their specified longevity: they are designed to last between 80,000 to 100,000 miles, meaning you won’t have to worry about this difficult job again for a long time.

Key features that stand out (Bold):
– Dual-Material Design: Iridium tip for spark intensity and Platinum core for overall strength.
– High Mileage Interval: Recommended replacement at 80,000 to 100,000 miles.
– Detailed Specifications Provided: Full data on gap size (0.044 IN) and thread dimensions helps verify compatibility.

Pros:
– Highly reliable lifespan, minimizing maintenance frequency.
– Engineered for maximum ignition performance.
– Excellent compatibility across multiple Ford V8 platforms.

Cons:
– The required 0.044 gap size should be double-checked before installation.

Best for: Drivers looking for maximum lifespan and a balanced performance plug that meets or exceeds OEM specifications without the highest brand markup.

Ignition Coils & Spark Plugs for Ford 5.4L 4.6L F150 09-10 Expedition 09-14 Explorer F250 F350 Super Duty Mustang GT 08-10 for Lincoln 5.4 Navigator 08-14 for Mercury 4.6 Mountaineer 08-10 DG521 FD509

If your 2010 F150 is suffering from misfires, it’s often smart to replace the ignition coils alongside the spark plugs—and this kit makes it easy. This package provides eight high-quality replacement ignition coils (DG521/FD509 reference) and eight SP509 equivalent spark plugs. This comprehensive approach ensures that the entire ignition system is refreshed, eliminating guesswork and providing optimal spark energy delivery to the cylinders. Be sure to confirm the coil boots are brown if your vehicle is a 2008 build, as specified in the fitment notes.

Key features that stand out (Bold):
– Complete Ignition System Overhaul: Includes both spark plugs and coils in one kit.
– Excellent Value Proposition: Significantly cheaper than buying OEM plugs and coils separately.
– OEM Part Cross-Reference: Coils and plugs match crucial factory reference numbers (DG521 and SP509).

Pros:
– Eliminates secondary ignition system failures (bad coils).
– Simplifies the ordering process for a full tune-up.
– Restores powerful, consistent ignition across all cylinders.

Cons:
– The quality of the included ignition coils might not match the durability of higher-end brands like Motorcraft or Denso.

Best for: Owners needing a full, budget-friendly tune-up solution who suspect their existing coils are worn out.

Expert Opinion: While we always prioritize the highest quality plugs, replacing plugs and coils together in a high-mileage 5.4L F150 is the smartest maintenance move. This kit offers fantastic peace of mind for one price.

8 pc NGK V-Power Spark Plugs compatible with Ford F-150 4.6L 5.4L 5.8L V8 1993-2010

For the truck owner who needs a reliable replacement without breaking the bank, or who performs more frequent engine maintenance, the NGK V-Power plugs are a classic choice. These are copper-core plugs featuring NGK’s V-Groove center electrode, which directs the spark for faster, more powerful ignition. While copper plugs require replacement more frequently than iridium or platinum (typically every 30,000 miles), they offer excellent conductivity and reliable performance when new.

Key features that stand out (Bold):
– Copper Core: Provides superior conductivity for a strong, reliable spark.
– V-Groove Design: Enhances ignitability by reducing quenching and concentrating the spark.
– Broad Compatibility: Covers a massive range of F-150 years and engine sizes.

Pros:
– The most affordable option for a full set of quality plugs.
– Excellent conductivity ensures immediate, strong ignition.
– Trusted NGK reliability in a conventional plug design.

Cons:
– Requires significantly more frequent replacement intervals than precious metal alternatives.

Best for: Budget-focused maintenance, older trucks, or applications where plugs are frequently inspected or changed (like forced induction, though OEM standards apply).

Expert Opinion: These are workhorses. They aren’t fancy, but they are incredibly efficient, reliable copper plugs. Just remember that if you install these, you’ll need to mark your calendar for the next change much sooner than you would with Iridium.

Comparison Insights: Choosing the Right Plug Material

When selecting the Best Spark Plugs For 2010 F150 5.4, the primary difference comes down to the electrode material, which dictates both cost and lifespan.

The NGK Iridium IX and the A-Premium Iridium Platinum options offer the maximum peace of mind. Iridium is the hardest, most resistant material, allowing for thinner center electrodes which produce a more concentrated spark. This directly translates to longevity—you install them and forget about them for nearly 100,000 miles.

If you are looking for the exact factory performance feel, options referencing the SP509 number (like the Iridium Platinum 8 Pack SP509) are often manufactured to strict specifications that match the original equipment that came with the 2010 truck.

However, if money is tight or you prefer traditional tune-ups, the NGK V-Power (Copper) plug is a stellar performer in terms of raw conductivity. Just be prepared for the shorter replacement cycle; they might need replacing three times before an iridium plug needs it once.

Finally, consider the condition of your coil packs. If your truck is approaching 150,000 miles, investing in the Ignition Coils & Spark Plugs kit saves time and money by refreshing the entire system at once, guaranteeing maximum combustion efficiency.

Final Verdict

Making the right choice for the 2010 F150 5.4L engine is a balance of initial cost versus maintenance frequency.

If you prioritize the longest interval and premium performance: We highly recommend the 8 pc NGK Iridium IX Spark Plugs. NGK’s quality control is unmatched, and Iridium is the superior material for demanding modern engines like the Triton. It’s the closest thing to an install-and-forget solution.

If you need the best overall value and a full ignition refresh: Go with the Ignition Coils & Spark Plugs kit. Getting both high-quality SP509 equivalent plugs and new coil packs for one price dramatically reduces future misfire potential caused by weak coils.

If budget is the primary concern but quality is still required: The 8 pc NGK V-Power Spark Plugs offer the trusted NGK brand and excellent initial spark delivery at the lowest price point, provided you commit to a 30,000-mile replacement schedule.

Best Spark Plugs For 2010 F150 5.4: Frequently Asked Questions

Why is changing the spark plugs on the 5.4L Triton engine notoriously difficult?

The 5.4L engine (specifically the 3-valve version) built before late 2007 often had a two-piece spark plug design that notoriously broke off in the cylinder head during removal. Fortunately, by the 2010 model year, Ford had switched to a revised, one-piece spark plug design (SP509). While removal is now much simpler, it’s still a time-consuming job due to the tight space around the cylinders, particularly the rear passenger side.

Do I need anti-seize when installing new spark plugs?

Generally, no, and in fact, applying anti-seize can sometimes be detrimental. Modern spark plugs, especially those from NGK and other major manufacturers, use a special plated shell finish (like nickel plating) that acts as an excellent anti-seize agent. Adding a traditional anti-seize compound can actually interfere with the proper torque reading, leading to over-tightening and potential damage to the aluminum cylinder head threads.

What is the correct gap size for the 2010 F150 5.4L?

For most modern replacement plugs compatible with the 2010 F-150 5.4L (which typically replace the SP509 or SP515 plug), the standard gap specification is 0.044 inches. While many precious metal plugs come pre-gapped, it is always crucial to double-check and adjust the gap using a wire-style gapping tool before installation to ensure optimal performance.

Should I choose Iridium, Platinum, or Copper spark plugs?

• Iridium and Platinum are recommended for the 5.4L Triton engine as they offer extreme durability and can last 80,000 to 100,000 miles. They are better suited for the high voltage and heat of this engine.
• Copper (like V-Power) provides superior electrical conductivity but wears out faster, requiring replacement every 30,000 miles. While cheaper upfront, the labor involved in frequent changes usually makes Iridium the better value over the lifespan of the truck.

Do I need to replace the ignition coils when I change the spark plugs?

It is highly recommended, especially if your truck has over 100,000 miles or if you are already experiencing a noticeable misfire. The coil-on-plug (COP) system relies on the coils to deliver high voltage. Since you are already removing the coils to access the plugs, replacing the coils prevents the hassle of revisiting the job later when a coil inevitably fails.

What torque specification should I use for the spark plugs?

Using the correct torque is vital to prevent plugs from backing out or damaging the sensitive aluminum threads. Consult your service manual, but typically, the recommended torque for SP509 replacement plugs (12mm thread) in the 5.4L Triton engine is around 11 ft-lbs (or 132 in-lbs). Always use a calibrated torque wrench for this job.