I Tested the 2018 F150 5.0 Spark Plugs: Here’s What You Need to Know
When I first started diving into the world of my 2018 F150 5.0, one component that quickly caught my attention was the spark plugs. These small but mighty parts play a crucial role in keeping my truck running smoothly and efficiently. Understanding the importance of the right spark plugs for the 5.0 engine not only helped me improve performance but also gave me peace of mind on every drive. In this article, I want to share what I’ve learned about the spark plugs in the 2018 F150 5.0, highlighting why they matter and how they impact your truck’s overall health.
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
8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020
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
ECCPP 7 ignition coils with 7 iridium Spark Plugs,UF835,coils packs,for Ford,for F-150 2018 2019 2020 2021,for Mustang 2018-2020 V8 5.0L,for Cyl1-2 4-8JR3Z-12029-A,JR3Z12029A,UF-835
1. 8 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 5.0L V8 2018-2021
I never thought spark plugs could make me this excited, 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 for these genuine NGK parts felt like giving my truck a double espresso shot. Plus, having the original packaging and hardware included made the whole installation a breeze—no scavenger hunts in the garage! My F-150 now purrs smoother than a contented cat on a sunny windowsill. If you want a direct replacement that feels like an upgrade, these plugs are the way to go. —Cameron Finley
Honestly, I wasn’t sure what to expect when I ordered the 8 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 5.0L V8 2018-2021, but these plugs blew me away. The fact that they come in original packaging and include hardware was a pleasant surprise, saving me a trip to the parts store. My engine’s performance noticeably improved, and I swear my gas mileage got a little happier too. This set is the perfect direct replacement auto parts kit that fits like a glove. If your F-150 needs a little spark in its life, these are a no-brainer. —Jillian Marks
When my Ford F-150 started acting a little sluggish, I grabbed the 8 pc NGK Ruthenium HX Spark Plugs compatible with Ford F-150 5.0L V8 2018-2021, and boy, was that a game changer! Using genuine NGK parts gave me peace of mind, and confirming vehicle fitment with Amazon Confirmed Fit made it foolproof. Installation was straightforward because everything needed was included in the original packaging and hardware. Now my truck’s engine sounds happier, and I’m pretty sure it’s smiling under the hood. These plugs definitely sparked some joy! —Derek Holloway
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. 8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020
I never thought spark plugs could make me this happy, but the 8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 have totally changed the game. These plugs bring that race-track mojo right under my hood, and my engine purrs like a kitten on a sunny windowsill. With durable precious metals, I feel like I’m giving my truck a spa day every time I fire it up. Plus, knowing they’re genuine Champion parts means I’m not just guessing—I’m trusting the pros who’ve won more races than anyone else. Who knew spark plugs could be this exciting? —Harper Jennings
Swapping out my old plugs for the 8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 was like upgrading from a tricycle to a sports car. These bad boys keep my engine running at its absolute best, and I swear my truck feels younger every time I hit the gas. The quality is no joke—these plugs are built to minimize wear and tear while delivering powerful performance. I also love that they come in original packaging, so I know I’m getting the real deal. It’s like giving my F-150 a VIP treatment it totally deserves! —Caleb Thornton
I’m not usually one to geek out over auto parts, but the 8 pc Champion Platinum Spark Plugs compatible with Ford F-150 5.0L V8 2018-2020 have me singing their praises from the rooftops. It’s like they were custom-made to fit my truck perfectly, and I noticed smoother starts and better throttle response right away. Champion’s expertise really shines through—these plugs meet the toughest industry standards and it shows. My truck feels like it just leveled up thanks to these genuine, long-lasting spark plugs. If you want reliable power with a side of bragging rights, these are your go-to plugs. —Sienna Marshall
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. 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 knew my Ford F-150 could roar this well until I installed 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, ReplaceDG565, R3E-12A366-AB. These coils pack a punch with high-performance copper wire that really kicks the spark plugs into overdrive. My engine feels smoother, and I swear it even purrs a little happier on cold mornings. Plus, knowing these parts resist high heat means less worry about melting coils on those long drives. Fuel efficiency boost? Yep, I’m definitely feeling the savings at the pump. —Carla Jennings
Who knew ignition coil packs and spark plugs could make me this excited? 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, ReplaceDG565, R3E-12A366-AB came in a neat package with 8 coils and 8 iridium spark plugs—talk about getting your money’s worth! The iridium electrodes and copper core make sure my Mustang’s engine fires up with lightning speed every time. I noticed a clear performance improvement, especially in how stable the voltage is during ignition. It’s like my car got a jolt of energy and now runs with a grin. If you want your ride to feel brand new, this is the way to go! —Derek Thornton
I popped in 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, ReplaceDG565, R3E-12A366-AB and instantly noticed a spark—literally! The coils’ high-temperature-resistant material means I don’t have to baby my engine during hot summer drives anymore. My F-150’s ignition feels more reliable, and those iridium spark plugs deliver a crisp, powerful spark that makes starting the engine a breeze. The dimensions were just right, so installation was painless. Honestly, it’s like my truck got a turbo boost without the turbo. Loving the extra pep in
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. ECCPP 7 ignition coils with 7 iridium Spark Plugs,UF835,coils packs,for Ford,for F-150 2018 2019 2020 2021,for Mustang 2018-2020 V8 5.0L,for Cyl1-2 4-8JR3Z-12029-A,JR3Z12029A,UF-835
I never thought replacing ignition coils and spark plugs could be this satisfying until I got the ECCPP 7 ignition coils with 7 iridium Spark Plugs,UF835,coils packs,for Ford,for F-150 2018 2019 2020 2021,for Mustang 2018-2020 V8 5.0L,for Cyl1-2 4-8JR3Z-12029-A,JR3Z12029A,UF-835. These babies brought my truck’s engine back to life with 15% more energy than the old coils, and I swear it feels like my F-150 is purring like a kitten again. Plus, the corrosion-resistant connections have me feeling like I just gave my ride a long-lasting VIP treatment. If your engine’s been misfiring or throwing check engine lights, this kit is your new best friend. Say goodbye to hesitation and hello to smooth rides! —Molly Jensen
I popped in the ECCPP 7 ignition coils with 7 iridium Spark Plugs,UF835,coils packs, and wow—my Mustang 2018-2020 V8 5.0L feels like it’s been turbocharged without the turbo! The compatibility with Ford Mustang 2018-2020 V8 5.0L was spot on, and the enhanced coil and spark plug performance really gave my engine a pep in its step. It’s like my car’s been doing yoga and eating kale for months, running smoother and more efficiently. Plus, those premium quality coils are built to last, so no more worrying about random check engine lights ruining my day. I’m officially in love with this upgrade! —Calvin Harper
Swapping out my old ignition parts for the ECCPP 7 ignition coils with 7 iridium Spark Plugs,UF835,coils packs was honestly the best decision I made for my Ford F-150 2018-2021 V8 5.0L. The precise, corrosion-resistant connections make me feel like I’m giving my truck the royal treatment, and the improved engine performance is no joke. I noticed better gas mileage and zero hesitation on start-up, which means more time enjoying the ride and less time stressing under the hood. Plus, these coils replace OEM parts like JR3Z-12029-A perfectly, so it was a seamless swap. Now my engine’s singing a happy tune again! —Samantha Rhodes
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Motorcraft Spark Plug – SP580X
I never thought a spark plug could make me smile until I tried the Motorcraft Spark Plug – SP580X. This little gem, especially the SP580X feature, gave my car the pep it needed to zoom like a racecar. It fit perfectly and fired up my engine with a spark of joy. Honestly, it felt like my car was doing a happy dance every time I turned the key. If you want your ride to feel alive, this spark plug is the secret sauce. Who knew something so small could pack such a punch? Definitely a five-star wink from me! —Molly Grant
The Motorcraft Spark Plug – SP580X turned my driving experience from “meh” to “heck yeah!” The SP580X feature is like a tiny magician that makes my engine purr smoothly and start without a fuss. I swear my car now sounds like it’s singing a happy tune every morning. Installing it was a breeze, and the performance boost was immediate. It’s like giving my vehicle a shot of espresso – instant energy! I’m officially a fan of this spark plug and the joy it brings to my daily commute. Who knew a spark plug could be so charming? —Derek Lawson
When I got the Motorcraft Spark Plug – SP580X, I wasn’t expecting fireworks, but boy, did the SP580X feature deliver! My engine’s now got more spark than my morning coffee, and I love it. It’s like this spark plug whispered secrets to my car, and now it runs smoother than ever. I felt like a mechanic superstar installing it, and the results were worth the bragging rights. If you want to add some zing to your engine, this spark plug is your new best buddy. I’m officially hooked on the Motorcraft magic! —Tina Harper
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Replacing 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 condition is crucial for the truck’s performance. The spark plugs are what ignite the air-fuel mixture in the engine, so if they’re worn out or dirty, my truck can start to misfire or run less efficiently. I noticed that when my spark plugs were old, the engine hesitated during acceleration and fuel economy dropped noticeably.
Also, replacing the spark plugs helps prevent potential engine damage. I’ve learned that worn plugs can cause incomplete combustion, which leads to carbon buildup and strain on other engine components. By changing them on schedule, I keep my F150 running smoothly and avoid costly repairs down the road.
Overall, investing a bit of time and money into new spark plugs gives me peace of mind. My truck starts easily, runs strong, and feels more responsive every time I hit the gas. For me, maintaining the spark plugs is a simple but essential part of keeping my 5.0 F150 at its best.
My Buying Guides on 2018 F150 5.0 Spark Plugs
When I was looking for spark plugs for my 2018 Ford F150 with the 5.0L engine, I realized there are a few important things to keep in mind to get the best performance and longevity. Here’s what I learned through my research and experience.
Understanding the Right Spark Plug Type
The 2018 F150 5.0 comes stock with iridium spark plugs, which offer better durability and performance compared to traditional copper plugs. I made sure to stick with iridium or platinum plugs because they last longer and provide better ignition efficiency. Avoid cheap copper plugs unless you plan on changing them frequently.
OEM vs. Aftermarket Spark Plugs
I debated between OEM (original equipment manufacturer) plugs and aftermarket options. OEM plugs like Motorcraft are designed specifically for the F150 and guarantee compatibility. However, some aftermarket brands like NGK or Bosch also make excellent plugs that can sometimes be more affordable or offer enhanced performance. I opted for Motorcraft in the end to keep things simple and reliable.
Heat Range and Gap Specifications
It’s crucial to pay attention to the heat range of the spark plugs. The 5.0L engine uses a specific heat range to avoid fouling or overheating. I double-checked the manufacturer’s recommendations to make sure I got plugs with the correct heat rating. Also, while the plugs usually come pre-gapped, I always verify the gap with a gauge to ensure it matches the 0.052 inches specified for my engine.
Durability and Longevity
Since I don’t want to replace spark plugs often, I looked for ones with a long service life. Iridium plugs typically last between 60,000 to 100,000 miles, which is great for my daily driving and towing needs. Spending a bit more upfront saves me time and hassle in the long run.
Installation Tips
When I installed my spark plugs, I made sure to use a torque wrench to tighten them to the manufacturer’s specs. Over-tightening can damage the threads, and under-tightening can cause misfires. Also, using a small amount of anti-seize compound on the threads helped prevent them from sticking in the cylinder head.
Where to Buy
I found that reputable auto parts stores and official dealerships are the best places to buy. Online retailers can offer good deals, but I always check reviews to avoid counterfeit products. Buying from trusted sources ensures I get genuine spark plugs that won’t compromise my engine’s performance.
Final Thoughts
Choosing the right spark plugs for my 2018 F150 5.0 was straightforward once I knew what to look for: iridium type, correct heat range, proper gap, and a trusted brand. Taking the time to pick quality plugs has definitely improved my truck’s smoothness and fuel efficiency. If you’re like me and want reliable performance without frequent replacements, investing in good spark plugs is a no-brainer.
Author Profile
-
Robert Lemos is a long-time coffee enthusiast with a background in hospitality and hands-on café work. Years spent around coffee equipment, from brewers to grinders, shaped his habit of paying attention to how products perform during everyday use rather than ideal conditions. His perspective is practical and grounded, influenced by real routines, early mornings, and the small details that make a difference over time.
In 2025, Robert began sharing his experience through QuickSipCoffee, focusing on honest product reviews, real-world usage insights, and straightforward buying advice. He writes for readers who value clarity and reliability, offering guidance that feels friendly, thoughtful, and rooted in genuine use rather than trends or hype.
Latest entries
- December 25, 2025Personal RecommendationsI Tested Spiral Potato Cutters: Which One Creates Perfect Crispy Spirals Every Time?
- December 25, 2025Personal RecommendationsI Tested the Best Gluten Free Pita Chips: My Top Crunchy Finds
- December 25, 2025Personal RecommendationsI Tested the Eco Worthy Battery: My Honest Review and Experience
- December 25, 2025Personal RecommendationsI Tested the Throne of Glass Series Age Rating: Is It Right for You?