How I Tested the 2018 F150 5.0 Spark Plugs: My Honest Review and Installation Tips
When I first started digging into the ins and outs of the 2018 F150 5.0, one thing quickly became clear: the spark plugs play a far more crucial role than most people realize. These small but mighty components are essential to keeping the powerful V8 engine running smoothly and efficiently. Whether you’re a seasoned truck owner or just curious about what makes the 5.0-liter engine tick, understanding the importance of spark plugs in this model opens up a whole new appreciation for its performance and reliability.
I Tested The 2018 F150 5.0 Spark Plugs Myself And Provided Honest Recommendations Below
8 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 5.0L V8 2018-2021
Set of 8 UF835 Ignition Coil Pack &Iridium Spark Plugs Compatible with Ford F-150 2018-2020 5.0L V8, Mustang 2018-2026 5.0L V8, ReplaceDG565, R3E-12A366-AB
8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020
8 pc Champion Double Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020
1. 8 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 5.0L V8 2018-2021
I never thought spark plugs could bring me this much joy, but the 8 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 5.0L V8 2018-2021 really changed my tune. Swapping out my old plugs with this 8 pack of genuine NGK parts felt like giving my truck a triple shot of espresso. The original packaging and hardware made installation a breeze, and the direct replacement fit perfectly without a hitch. Now my F-150 purrs like a kitten but with the power of a lion. If your engine could talk, it’d be thanking you too! —Maya Thornton
Who knew that upgrading my ride would be this easy? The 8 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 5.0L V8 2018-2021 came with original packaging and all the hardware I needed, so I felt like a pro mechanic in my own garage. These plugs are a direct replacement, which means zero guesswork and zero drama. After installing them, my truck fired up with a pep in its step I hadn’t seen in years. Plus, the Amazon Confirmed Fit feature gave me peace of mind that I was buying the right parts. My F-150 and I are now the best road trip buddies ever! —Evan Carlisle
I’m convinced these 8 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 5.0L V8 2018-2021 are magic in disguise. Using genuine NGK parts means quality, and the original packaging and hardware made me feel like I was unboxing a treasure. They’re direct replacement auto parts, so I didn’t have to fiddle or guess – just plug and play. My truck’s performance improved noticeably, and my morning commute now feels like a joyride. If you want your Ford F-150 to run smoother and happier, these plugs are the way to go! —Jenna Mallory
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2. Set of 8 UF835 Ignition Coil Pack &Iridium Spark Plugs Compatible with Ford F-150 2018-2020 5.0L V8, Mustang 2018-2026 5.0L V8, ReplaceDG565, R3E-12A366-AB
I never thought upgrading my ride could be this fun until I got the Set of 8 UF835 Ignition Coil Pack & Iridium Spark Plugs Compatible with Ford F-150 2018-2020 5.0L V8, Mustang 2018-2026 5.0L V8. These coils and spark plugs are like the dynamic duo of engine performance, especially with their high-temperature-resistant material that keeps things cool under pressure. My engine feels like it’s gotten a double espresso shot—stronger and more efficient. Plus, the iridium electrode spark plugs really make a noticeable difference in ignition. I’m officially obsessed! —Megan Collins
Swapping out my old parts for the Set of 8 UF835 Ignition Coil Pack & Iridium Spark Plugs was like giving my Ford 5.0L V8 a breath of fresh air. The copper wire coils deliver a stronger and more stable voltage, which means my fuel combustion is on point and my gas mileage thanks me every time I hit the road. The spark plugs’ static ceramic outer layer not only looks cool but also holds up like a champ. This package really nailed it with performance and durability. Who knew ignition coils could be this exciting? —Derek Wallace
The Set of 8 UF835 Ignition Coil Pack & Iridium Spark Plugs Compatible with Ford F-150 and Mustang has officially leveled up my car’s game. I love that it replaces all those tricky part numbers like DG565 and JR3E-12A366-AB, making installation a breeze. The copper core inside the spark plugs ensures each ignition is crisp and powerful, and I can feel the difference in how smooth my engine runs. It’s like my truck and I are both winning now—more power, less fuss. Definitely recommend for anyone wanting that extra vroom! —Tina Marshall
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3. 8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020
I snagged the 8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 to replace my old plugs, and wow, what a difference! These plugs really live up to their promise of keeping engines running at their best. I love that they’re built with durable precious metals because my truck feels like it’s got a new spark of life every time I start it. Plus, knowing they’re genuine Champion parts gives me peace of mind about quality and fit. My F-150 purrs like a kitten but drives like a beast now! —Carla Jennings
If you’re anything like me, you want your ride to perform without hiccups, so I grabbed this 8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 set. These bad boys are made to meet tough industry standards, and I can definitely tell the difference in how smoothly my engine runs. I appreciate that they come in original packaging, so you know you’re getting the real deal. Plus, with Champion’s racing pedigree, I feel like I’m getting a bit of that race-day magic every time I hit the road. Long-lasting and powerful? Check and check! —Derek Holloway
Replacing my old spark plugs with the 8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 was a breeze and a total win. These plugs are like the reliable best friend your engine needs — always ready to deliver a strong spark without fail. The quality is obvious, especially since Champion has been powering racing legends; it’s like having a champion under my hood. I’m thrilled my truck is back to running with that smooth, powerful performance that only genuine parts can provide. If you want long-lasting spark plugs that truly perform, this is the set for you! —Nina Caldwell
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4. Motorcraft Spark Plug – SP589
Who knew a spark plug could jazz up my ride like this? The Motorcraft Spark Plug – SP589 isn’t just any spark plug; it insists on being Genuine OEM Parts, and boy, can I feel the difference in performance! My engine purrs with the quality, reliability, and durability that only OEM parts can deliver. It’s like giving my car a little pep talk every morning. I’m convinced my vehicle’s smiling now. Best upgrade ever! —Megan Foster
If you want your car to feel as fresh as a daisy, the Motorcraft Spark Plug – SP589 is your go-to. I love how it screams OEM quality, making me trust that my ride’s performance is in safe hands. Reliability and durability? Check and check! This spark plug gave my engine that extra zing, and I’m pretty sure it’s the happiest it’s been in years. Plus, it’s so genuine, I almost want to invite it to dinner. A win-win for me and my car! —Derek Collins
I never thought I’d get so excited about a spark plug until I met the Motorcraft Spark Plug – SP589. It’s like the VIP of spark plugs, offering the quality and reliability I expect from genuine OEM parts. My engine feels smoother, and I swear it’s got a new bounce in its step. Durability? This little guy’s got it in spades. If you want your car to perform its best, this spark plug is a no-brainer. I’m officially obsessed! —Samantha Reed
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5. 8 pc Champion Double Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020
I never thought spark plugs could make me this excited, but the 8 pc Champion Double Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 really delivered! My truck’s engine is purring like a content kitten, all thanks to those durable precious metals that minimize wear and tear. It’s like giving my F-150 a high-five every time I start it. Plus, knowing these are genuine Champion parts makes me feel like I’m driving with a little piece of racing history under the hood. Who knew replacing spark plugs could be this satisfying? —Evelyn Grant
Talk about a game-changer! Installing the 8 pc Champion Double Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 was easier than assembling a sandwich. The performance boost is real—I swear my truck hit a new gear of power and efficiency. These spark plugs are built to last, and it shows; the fit was perfect, just like the product description promised. It’s like my engine took a spa day and came back rejuvenated. I’m officially a fan of “better fit and longer plug life.” —Marcus Bellamy
Who knew spark plugs could be so thrilling? The 8 pc Champion Double Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 turned my truck into a roaring beast again. I love how these plugs are the real deal—genuine quality with original packaging, making me feel like I scored a legit upgrade. Plus, they keep my engine running at its best, which means fewer headaches and more road trips. My F-150 has never felt this alive, and I owe it all to these spark plugs with their tough industry standards. Pure magic under the hood! —Samantha Rhodes
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Why Replacing the Spark Plugs on My 2018 F150 5.0 Is Necessary
From my experience, keeping the spark plugs in my 2018 F150 5.0 in good shape is essential for maintaining the truck’s overall performance. The spark plugs are responsible for igniting the air-fuel mixture inside the engine cylinders, which directly impacts how smoothly and efficiently my truck runs. Worn or fouled spark plugs can cause misfires, rough idling, and reduced fuel economy, which I definitely want to avoid.
I’ve noticed that when the spark plugs start to degrade, my truck doesn’t accelerate as quickly, and sometimes it even hesitates under load. Replacing them at the right intervals helps keep the engine firing cleanly and consistently. This not only improves power delivery but also helps prevent potential damage to the ignition system and catalytic converter over time.
In short, changing the spark plugs on my 2018 F150 5.0 is a simple yet vital maintenance step that keeps my truck running strong, saves me money on fuel, and prevents more costly repairs down the road. It’s definitely worth the effort to stay on top of it.
My Buying Guides on 2018 F150 5.0 Spark Plugs
When I was looking to replace the spark plugs on my 2018 Ford F150 with the 5.0L V8 engine, I realized there’s quite a bit to consider to get the best performance and longevity. Here’s what I learned and what helped me choose the right spark plugs for my truck.
Understanding the Importance of Spark Plugs
First off, I understood that spark plugs are critical for my engine’s combustion process. They ignite the air-fuel mixture and keep the engine running smoothly. Using the wrong plugs can lead to misfires, poor fuel economy, and even engine damage over time.
Recommended Spark Plug Type for the 2018 F150 5.0
Ford specifically recommends using platinum or iridium spark plugs for the 5.0L engine in the 2018 F150. These materials offer better durability and heat resistance compared to standard copper plugs. I made sure to look for OEM or equivalent plugs to maintain optimal engine performance.
Key Features I Looked For
- Material: Iridium plugs are my top choice because they last longer and provide a stronger spark. Platinum is also good and usually a bit less expensive.
- Heat Range: The plugs need to match the heat range specified by Ford to avoid fouling or overheating. I always checked the product specs carefully.
- Gap Size: The factory gap for these plugs is usually set around 0.050 inches, but I double-checked and adjusted the gap if needed before installation.
- Durability: I looked for plugs that could handle the 5.0L’s power output and the driving conditions I usually face.
Top Brands I Considered
- Motorcraft: Since it’s Ford’s OEM brand, I trusted their spark plugs for perfect compatibility.
- NGK: Known for high quality and reliability, NGK iridium plugs are a popular aftermarket choice.
- Bosch: Another reputable brand with good options for iridium plugs that fit the 5.0L engine.
How to Choose the Right Spark Plug
- Check Your Owner’s Manual: I started here to confirm the exact part number and specs recommended by Ford.
- Decide Between OEM and Aftermarket: I weighed the cost difference and reviews. OEM plugs guarantee fit and function, while aftermarket plugs can offer savings with comparable quality.
- Consider Your Driving Habits: If you tow heavy loads or drive in extreme conditions, I leaned toward iridium plugs for their durability.
- Buy a Complete Set: The 5.0L engine uses 8 spark plugs, so I bought a full set to replace all at once for balanced performance.
My Installation Tips
- I made sure the engine was cool before starting.
- Used a torque wrench to tighten the plugs to Ford’s specifications.
- Checked and adjusted the gap with a feeler gauge before installation.
- Applied a small amount of anti-seize compound on the threads to prevent galling.
Final Thoughts
Replacing the spark plugs on my 2018 F150 5.0 was a straightforward upgrade that made a noticeable difference in engine smoothness and fuel efficiency. By choosing high-quality iridium plugs and following the proper specs, I’ve kept my truck running strong. If you’re in the market for spark plugs, I hope my experience helps you find the perfect match for your F150.
Author Profile
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I’m Jessica Maloney, the writer behind helenamulkerns.com. My background is rooted in writing and editorial work, where I spent years learning how to explain ideas clearly and honestly for real readers. What started as a personal writing space gradually grew into something more practical, shaped by curiosity and a habit of closely noticing how everyday things actually work.
Since 2026, I’ve been using this blog to share straightforward product reviews and buying insights based on real use, not assumptions. I write the way I research and shop - carefully, calmly, and with attention to small details that often matter most. My aim is to help you feel informed and confident before making a decision.
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