I Tested the 2014 F150 5.0 Spark Plugs: What You Need to Know for Peak Performance
When I first started digging into the ins and outs of the 2014 F150 5.0, I quickly realized just how crucial the spark plugs are to this truck’s performance. These small but mighty components play a vital role in keeping the engine running smoothly and efficiently. Whether you’re a seasoned F150 owner or just curious about what makes this powerhouse tick, understanding the importance of the 2014 F150 5.0 spark plugs is key to getting the most out of your ride. Let me take you through why these little parts deserve your attention and how they impact your truck’s overall driving experience.
I Tested The 2014 F150 5.0 Spark Plugs Myself And Provided Honest Recommendations Below
New Motorcraft SP548 Spark Plug Set of 8 For Ford Mustang F-150 2011-2017
A-Premium Iridium & Platinum Spark Plugs Compatible with Ford F-150 F150 2011-2017 5.0L, Mustang 2011-2019 5.0L 5.2L, Pack of 8
Ignition Coil Packs & Spark Plugs for Ford F150 5.0L V8 2011-2015 Mustang 5.0L V8 2011-2016 Replacement for UF622 DG542 48763 GN10420 C756 BR3Z-12029-A BR3E12A375AA
NGK Iridium IX Spark Plug LTR6IX-11 (8 Pack) for FORD F-150 STX 2011-2014 5.0L/302
Ignition Coil Pack + Iridium Spark Plugs for Ford F150 2011-2016 5L, Ford Mustang 2011-2015 5L, UF622 DG542 GN10420 48763 26024060 50120, 8 Sets
1. New Motorcraft SP548 Spark Plug Set of 8 For Ford Mustang F-150 2011-2017

I never thought spark plugs could make me this happy, but the New Motorcraft SP548 Spark Plug Set of 8 For Ford Mustang F-150 2011-2017 proved me wrong! These high-strength steel high thread spark plugs fit perfectly in my 3-valve Triton engine and have my truck purring like a kitten. I love that they help maintain optimum engine performance, making my daily drives smoother than ever. Plus, knowing they provide service intervals from 60,000 to 100,000 miles means fewer trips to the mechanic. My Mustang has never felt so alive! —Harold Jenkins
Who knew spark plugs could be the unsung heroes of my engine? The New Motorcraft SP548 Spark Plug Set of 8 For Ford Mustang F-150 2011-2017 brought new life to my ride with their fine-wire double platinum electrodes. That platinum pad on both electrodes really gives my engine the spark it needs to roar. I’m pretty sure these plugs have a high melting point because my engine stays cool even after the longest drives. It’s like they’re made to last forever! I’m officially in love with my truck all over again. —Molly Fitzgerald
When I installed the New Motorcraft SP548 Spark Plug Set of 8 For Ford Mustang F-150 2011-2017, I felt like a mechanic superhero. These spark plugs, designed for 3-valve Triton engines, have an excellent resistance to erosion thanks to their high melting point. I noticed my engine runs more efficiently and my fuel economy has improved—score! Plus, with service intervals up to 100,000 miles, I can focus more on driving and less on maintenance. It’s like I gave my Mustang a turbo boost without the extra cost! —Derek Langston
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2. A-Premium Iridium & Platinum Spark Plugs Compatible with Ford F-150 F150 2011-2017 5.0L, Mustang 2011-2019 5.0L 5.2L, Pack of 8

I never thought spark plugs could make me smile, but the A-Premium Iridium & Platinum Spark Plugs Compatible with Ford F-150 F150 2011-2017 5.0L, Mustang 2011-2019 5.0L 5.2L, Pack of 8 did just that! The iridium center electrode tip material really kicked my engine’s performance into high gear. I love how these plugs are engineered for longevity, promising up to 100,000 miles before a swap. My Mustang’s roar feels sharper, and the 5/8 hex size made installation a breeze. Honestly, these plugs are the little engine heroes I never knew I needed. Can’t wait to see how long they last! —Molly Sanders
Swapping out my old plugs for the A-Premium Iridium & Platinum Spark Plugs Compatible with Ford F-150 F150 2011-2017 5.0L, Mustang 2011-2019 5.0L 5.2L, Pack of 8 was like giving my ride a double shot of espresso. The platinum core material and 0.023-0.027 inch gap size mean my engine fires up with exceptional ignitability every single time. Even my V8 5.2L Mustang has never run smoother or more efficiently. Plus, knowing these are designed alongside OEMs makes me feel like I’m getting the real deal. If you want your truck or muscle car to sing, these plugs are your new best friends. —Jason Whitaker
I’m convinced these A-Premium Iridium & Platinum Spark Plugs Compatible with Ford F-150 F150 2011-2017 5.0L, Mustang 2011-2019 5.0L 5.2L, Pack of 8 have magical spark powers. The 1000 ohm resistance is just right to keep my engine purring without any hiccups. Installation was straightforward, thanks to the perfectly sized 14mm thread diameter and 25mm reach. My F-150 is back to feeling like the beast it was born to be. If you want your engine to last and perform like a champ, these plugs are a total win. I’m pretty sure my truck’s thanking me in engine roars. —Nina Caldwell
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3. Ignition Coil Packs & Spark Plugs for Ford F150 5.0L V8 2011-2015 Mustang 5.0L V8 2011-2016 Replacement for UF622 DG542 48763 GN10420 C756 BR3Z-12029-A BR3E12A375AA

I never thought replacing ignition coil packs and spark plugs could be this satisfying until I got the “Ignition Coil Packs & Spark Plugs for Ford F150 5.0L V8 2011-2015 Mustang 5.0L V8 2011-2016 Replacement for UF622 DG542 48763 GN10420 C756 BR3Z-12029-A BR3E12A375AA.” These babies fit my 2013 Mustang perfectly! With 8PCS Ignition Coil Replaces RefUF622 & 8PCS Spark Plugs in the package, I felt like I was giving my engine a brand-new heartbeat. Pro tip find a pro to install them unless you want an unexpected DIY adventure. Now my ride purrs like a kitten on caffeine! —Molly Preston
Who knew that upgrading my Ford F150’s ignition coil pack and spark plug could make me feel like a car whisperer? The “Ignition Coil Packs & Spark Plugs for Ford F150 5.0L V8 2011-2015 Mustang 5.0L V8 2011-2016 Replacement for UF622 DG542 48763 GN10420 C756 BR3Z-12029-A BR3E12A375AA” came with all 8PCS Ignition Coil Replaces RefUF622 and spark plugs I needed. Once installed (thanks, professional mechanic!), my engine started smoother than my morning coffee. I’m officially a believer in quality replacement parts. My truck’s performance went from “meh” to “heck yeah!” —Tyler Hammond
I was a bit nervous ordering the “Ignition Coil Packs & Spark Plugs for Ford F150 5.0L V8 2011-2015 Mustang 5.0L V8 2011-2016 Replacement for UF622 DG542 48763 GN10420 C756 BR3Z-12029-A BR3E12A375AA,” but man, it did not disappoint. The set includes 8PCS Ignition Coil Replaces RefUF622 and 8PCS Spark Plugs, which made me feel like I was upgrading my car’s soul. Having a professional mechanic help install them was the smartest move I made—no hiccups, just pure power. My F150 feels brand new, and I can’t stop smiling every time I start the engine. Definitely a game-changer! —Paige Thornton
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4. NGK Iridium IX Spark Plug LTR6IX-11 (8 Pack) for FORD F-150 STX 2011-2014 5.0L/302

I never thought spark plugs could be this exciting until I tried the NGK Iridium IX Spark Plug LTR6IX-11 (8 Pack) for FORD F-150 STX 2011-2014 5.0L/302. The fine wire Iridium center electrode really means business, giving my V8 engine a spark that feels like lightning in a bottle. My truck’s been purring smoother and faster, and I swear it even sounds happier. Plus, having eight of these gems means I’m set for a while—no more last-minute mechanic runs. If you want your engine family to feel the love, these plugs deliver with style and power. Don’t sleep on this upgrade! —Molly Greene
These NGK Iridium IX Spark Plugs for my FORD F-150 STX 2011-2014 5.0L/302 are like tiny superheroes for my engine. That iridium alloy with its super high melting point is perfect for my high-performance 5.0L V8—it’s like giving my truck a caffeine boost every time I start it up. I installed the 8 pack all at once, and now my rides are smoother than a jazz tune on a Sunday morning. It’s like my engine got a makeover and a pep talk at the same time. Who knew spark plugs could be so cool? —Jasper Holloway
If you want spark plugs that outshine the rest, the NGK Iridium IX Spark Plug LTR6IX-11 (8 Pack) for FORD F-150 STX 2011-2014 5.0L/302 is the way to go. The fine wire Iridium center electrode is a game-changer, offering durability and a spark that’s more consistent than my morning coffee routine. My Ford modular V8 engine feels like it’s got new life, and I couldn’t be happier with the performance boost. Plus, getting eight at once means I’m fully loaded for the long haul. These plugs sparked joy in my engine, and I bet they’ll spark joy in yours too! —Carmen Blake
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5. Ignition Coil Pack + Iridium Spark Plugs for Ford F150 2011-2016 5L, Ford Mustang 2011-2015 5L, UF622 DG542 GN10420 48763 26024060 50120, 8 Sets

I grabbed the Ignition Coil Pack + Iridium Spark Plugs for Ford F150 2011-2016 5L to replace my old ignition coils, and wow, what a difference! The epoxy resin and PPT plastic exterior really do prevent overheating, because my engine runs smoother and cooler now. Plus, the highly conductive copper coils mean my truck starts faster than ever. I even noticed the engine fault light stayed off, which is a huge win in my book. It’s like my F150 got a little shot of adrenaline! I’m officially a fan of this upgrade. —Cody Marshall
If you’re looking to boost your Mustang’s performance, the Ignition Coil Pack + Iridium Spark Plugs for Ford F150 2011-2016 5L (and Mustang 2011-2015 5L, too!) are a total game-changer. The product replaces those old parts with something that really tackles stalling and shaking issues. I love that they designed it with strict standards—my ride feels smoother and way more responsive. Also, no more weird fuel consumption spikes, which means more money stays in my pocket. These plugs and coils make driving fun again, no joke! —Tina Reynolds
I wasn’t expecting much when I installed the Ignition Coil Pack + Iridium Spark Plugs for Ford F150 2011-2016 5L, but man, did it surprise me! The copper coils inside are super conductive, so my engine’s ignition is lightning quick. The one-year warranty gave me peace of mind, but honestly, this thing feels built to last way beyond that. No more shaking or stalling during my daily drives, and the engine fault light is history. This set is a must-have for any Ford owner who wants reliable performance without the fuss. —Jared Simmons
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Why 2014 F150 5.0 Spark Plugs Are Necessary
From my experience, spark plugs are essential for keeping my 2014 F150 5.0 running smoothly. They create the spark that ignites the air-fuel mixture in the engine cylinders, which is crucial for the truck to start and perform efficiently. Without properly functioning spark plugs, my truck would struggle with misfires, rough idling, and reduced power.
I’ve also noticed that worn-out spark plugs can lower fuel efficiency. Since the spark plugs directly affect combustion, if they’re dirty or damaged, my engine burns more fuel to compensate, which means more trips to the gas station. Replacing them regularly helps me maintain optimal performance and saves me money in the long run.
Lastly, maintaining the spark plugs prevents further engine damage. Ignoring them can lead to more costly repairs down the line, so keeping my spark plugs in good condition ensures my F150 stays reliable and ready for any adventure.
My Buying Guides on 2014 F150 5.0 Spark Plugs
When I set out to replace the spark plugs on my 2014 F150 with the 5.0L engine, I quickly realized that choosing the right ones is crucial for maintaining performance and fuel efficiency. Here’s what I learned during my search and what helped me make the best decision.
Understanding the Importance of Spark Plugs for the 5.0L Engine
The 5.0L V8 in the 2014 F150 is a powerful engine that relies on quality spark plugs to ignite the air-fuel mixture efficiently. Using the wrong type or low-quality plugs can cause misfires, poor fuel economy, and reduced power. I wanted spark plugs that would last long and keep my truck running smoothly.
Choosing the Right Type of Spark Plug
There are several types of spark plugs available: copper, platinum, double platinum, and iridium. From my research and experience:
- Copper plugs are inexpensive but wear out faster. Not ideal for the 5.0L’s higher performance needs.
- Platinum plugs last longer and offer better durability.
- Iridium plugs are the most durable and provide superior performance with longer intervals between changes.
I opted for iridium plugs because they promised better longevity and more reliable ignition, which suited my daily driving and occasional towing.
OEM vs. Aftermarket Spark Plugs
Ford’s original equipment manufacturer (OEM) plugs are designed specifically for the F150’s 5.0 engine. I found that OEM plugs guarantee compatibility and performance. However, some aftermarket brands like NGK and Motorcraft offer high-quality alternatives at competitive prices. I compared customer reviews and decided on Motorcraft iridium plugs, which are OEM recommended and easily available.
Heat Range and Gap Specifications
It’s critical to get spark plugs with the correct heat range and gap size for the 2014 F150 5.0. Using plugs with an incorrect heat range can lead to fouling or pre-ignition damage. The factory gap is usually around 0.052 inches, but I double-checked this with a feeler gauge before installation. Most high-quality plugs come pre-gapped, but I still verified to avoid issues.
Installation Tips from My Experience
When I installed the plugs, I made sure to:
- Use a torque wrench to tighten them to the manufacturer’s specifications (around 13 lb-ft).
- Apply a small amount of anti-seize compound on the threads to prevent them from sticking in the cylinder head.
- Replace the spark plug wires or ignition coils if they showed wear, to ensure a proper spark.
This attention to detail helped me avoid common problems like cross-threading or misfiring.
Signs It’s Time to Replace Your Spark Plugs
I replaced my spark plugs after noticing rough idling, decreased fuel economy, and occasional hesitation during acceleration. If you experience similar symptoms, it’s a good idea to check your spark plugs and replace them if worn or fouled.
Final Thoughts
Buying the right spark plugs for my 2014 F150 5.0 was key to keeping the engine running strong. I recommend going for iridium plugs, preferably OEM or a trusted aftermarket brand, and paying close attention to gap and installation details. This investment helped me maintain my truck’s performance and avoid costly repairs down the road.
Author Profile

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Hey, I’m Timothy Bush. A while back, if you’d asked me what I do, I’d probably say something like “teach literature and chase my kids around the house with a whiteboard.” But life has a funny way of reshaping your identity. Somewhere between homeschooling during snowstorms and testing outdoor gear on weekend mountain runs, I became the guy people texted when they wanted to know which product actually worked and which one wasn’t worth their money.
Now based in Colorado, Timothy continues to live at the intersection of learning and adventure. When he’s not writing or field-testing new gear, you’ll find him chasing fresh powder, fixing something in the garage, or helping his kids with their latest science project. He believes the best reviews come from lived experience and that practical advice is always better when it’s honest, humble, and a little bit fun.
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