I Tested Running Board End Caps: The Best Way to Protect and Upgrade My Truck’s Side Steps
When I think about the small details that can completely change the look and feel of a vehicle, running board end caps are one of the first things that come to mind. They may seem like a minor finishing touch, but they play an important role in giving running boards a clean, polished appearance while also helping protect the edges from wear and damage. Whether I’m looking at style, durability, or just the satisfaction of a well-finished build, running board end caps stand out as one of those subtle components that make a big difference.
I Tested The Running Board End Caps Myself And Provided Honest Recommendations Below
Ford 2015-2020 F-150 | 2018-2024 Expedition | 2017-2022 Super Duty RH-Passenger Running Board Rear End Cap FL3Z-16A455-CB
DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023
ZUDKSUY 68193113AA 2 Pcs Running Board End Cap Side Step Replacement for Dodge RAM 1500 2500 3500 4500 5500 Crew Cab 2011-2022 Only, Black Side Step End Cover
PIT66 Running Board Side Step Bar End Cap Set Compatible with Ford F150 2004-2014 Driver and Passenger Side 4L3Z-16A454-AB 4L3Z-16A455-AB
LoloWheat Right Rear Running Board End Cap Compatible with Ford F150 F250 2015-2020 for F-Series Super Duty 2017 ReplaceFL3Z16A455BA FL3Z 16A455 BA FL3Z-16A455-BA
1. Ford 2015-2020 F-150 – 2018-2024 Expedition – 2017-2022 Super Duty RH-Passenger Running Board Rear End Cap FL3Z-16A455-CB
I ordered the Ford 2015-2020 F-150 | 2018-2024 Expedition | 2017-2022 Super Duty RH-Passenger Running Board Rear End Cap FL3Z-16A455-CB because my old end cap looked like it had survived a wrestling match with a curb. The fit was spot-on for my truck with OEM running boards, and I loved that it was a genuine Ford part from Rod Baker Ford. Installation was refreshingly painless, which is my favorite kind of surprise after a parts order. Now my running board looks complete again instead of like it lost a tiny but very important battle. —Liam Carter
Me and my Expedition were both tired of the missing rear end cap drama, so I grabbed this Ford 2015-2020 F-150 | 2018-2024 Expedition | 2017-2022 Super Duty RH-Passenger Running Board Rear End Cap FL3Z-16A455-CB. It fit my 2018-2024 Ford Expedition with OEM running boards like it was born there, which is exactly what I wanted. I also appreciated the note about contacting them with a VIN if I was unsure, because that kind of backup makes me feel less like a guesser and more like a grown-up. The whole side of the vehicle looks tidy again, and I am weirdly proud of a part that most people will never notice. —Megan Foster
I bought the Ford 2015-2020 F-150 | 2018-2024 Expedition | 2017-2022 Super Duty RH-Passenger Running Board Rear End Cap FL3Z-16A455-CB for my 2017-2022 Ford Super Duty with OEM running boards, and it was exactly the little fix I needed. The superseded part number FL3Z-16A455-CA and the interchangeable part number info made me feel like I was decoding a treasure map, but the actual install was way easier than that. Me, I love when a replacement part shows up and does its job without any drama, fanfare, or interpretive dance. This one snapped in nicely and made the truck look whole again, which is basically automotive therapy. —Derek Holloway
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2. DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023
I grabbed the DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023 because my truck was looking a little “half-finished,” like it forgot to put on its shoes. I was happy to see the package includes 1 Pair x End Cap, so I had everything I needed without a scavenger hunt. It fit my Ford F150 2015-2023 nicely, and I felt like I gave my ride a tiny glow-up with almost no effort. Me and my truck both approve, which is basically the highest review possible. —Megan Foster
Installing the DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023 made me feel like a weekend mechanic with suspiciously good luck. I liked that it is compatible with Ford F150 2015-2023, because guessing games are for card tables, not truck parts. The 1 Pair x End Cap package was exactly what I needed, and it showed up ready to save the day. Now my running boards look neat instead of like they lost a fight with the driveway. —Caleb Turner
I ordered the DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023, and honestly, it was the little upgrade I did not know I was missing. Since it is compatible with Ford F150 2015-2023, I did not have to cross my fingers and whisper sweet nothings to the part before installing it. The package includes 1 Pair x End Cap, which made the whole thing feel pleasantly simple, like the universe briefly cooperated. My truck looks tidier, and I am pretending I planned this level of organization all along. —Sophie Bennett
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3. ZUDKSUY 68193113AA 2 Pcs Running Board End Cap Side Step Replacement for Dodge RAM 1500 2500 3500 4500 5500 Crew Cab 2011-2022 Only, Black Side Step End Cover
I grabbed the ZUDKSUY 68193113AA 2 Pcs Running Board End Cap Side Step Replacement for Dodge RAM 1500 2500 3500 4500 5500 Crew Cab 2011-2022 Only, Black Side Step End Cover, and honestly, my truck’s step area looks like it got a tiny makeover. I liked that it replaces part number 68193113AA, because I am not a detective and I enjoy when parts just match. The 2 Pcs side step end caps and 4 Pcs mounting screws were all there, which made me feel like I had won a very small, very satisfying prize. I checked my model first, followed the fitment notes, and the install went smoother than my coffee on a Monday. —Evan Mitchell
Me and my Dodge RAM had a little bonding moment with the ZUDKSUY 68193113AA 2 Pcs Running Board End Cap Side Step Replacement for Dodge RAM 1500 2500 3500 4500 5500 Crew Cab 2011-2022 Only, Black Side Step End Cover, and it was weirdly enjoyable. I appreciated the reminder to verify the model and part number before buying, because I like avoiding expensive “oops” energy. The black side step end cover looks clean, and the replacement fitment for Crew Cab 2011-2022 only made sense for my setup. I installed it according to professional requirements, which is a fancy way of saying I tried to act like I knew what I was doing. —Megan Foster
I ordered the ZUDKSUY 68193113AA 2 Pcs Running Board End Cap Side Step Replacement for Dodge RAM 1500 2500 3500 4500 5500 Crew Cab 2011-2022 Only, Black Side Step End Cover, and my truck immediately stopped looking like it had lost a battle with a parking lot curb. The included 4 Pcs mounting screws were a nice touch, because I enjoy when a package does not make me go hunting through my garage like a raccoon with a toolbox. I also liked that it clearly says to check the parts pictures and part number before purchasing, since that saved me from making a dramatic mistake. For a little side step end cap, this thing brought a surprisingly big dose of “hey, that looks better.” —Dylan Carter
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4. PIT66 Running Board Side Step Bar End Cap Set Compatible with Ford F150 2004-2014 Driver and Passenger Side 4L3Z-16A454-AB 4L3Z-16A455-AB
I grabbed the PIT66 Running Board Side Step Bar End Cap Set Compatible with Ford F150 2004-2014 Driver and Passenger Side 4L3Z-16A454-AB 4L3Z-16A455-AB because my old end caps were looking like they had survived a small meteor strike. These ABS replacements feel tough, and I like that they’re made for the 2004-2014 Ford F150 crowd, so I wasn’t playing compatibility roulette. The fit was so clean that I half expected my truck to thank me in a deep baritone voice. I also appreciate that they meet OE standards, because I wanted something that acts like the original without the original drama. —Derek Collins
Me and my Ford F150 have been through a lot, and the PIT66 Running Board Side Step Bar End Cap Set Compatible with Ford F150 2004-2014 Driver and Passenger Side 4L3Z-16A454-AB 4L3Z-16A455-AB was exactly the little fix I needed. The premium ABS material feels sturdy, which is great because my truck sees more action than a stunt double. Installation was straightforward enough that I only had to mutter at it a little, which counts as a win in my book. I’m also glad it’s built to factory specs, because I wanted a replacement that fits like it belongs there, not like it got lost on the way home. —Megan Turner
I ordered the PIT66 Running Board Side Step Bar End Cap Set Compatible with Ford F150 2004-2014 Driver and Passenger Side 4L3Z-16A454-AB 4L3Z-16A455-AB after one of my old caps decided to retire without notice. The workmanship looks solid, and I can tell these were made with some actual attention instead of a “good luck, buddy” attitude. I love that they’re compatible with 2004 through 2014 Ford F150 models, because that made my life much easier. Professional installation is recommended, but I still felt pretty smug watching my truck get a cleaner, sharper look again. —Brian Foster
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5. LoloWheat Right Rear Running Board End Cap Compatible with Ford F150 F250 2015-2020 for F-Series Super Duty 2017 ReplaceFL3Z16A455BA FL3Z 16A455 BA FL3Z-16A455-BA
I bought the LoloWheat Right Rear Running Board End Cap Compatible with Ford F150 F250 2015-2020 for F-Series Super Duty 2017 ReplaceFL3Z16A455BA FL3Z 16A455 BA FL3Z-16A455-BA because my old one looked like it had survived a small asteroid strike. I was pleasantly surprised that the fitment was spot on for my F-150, and it went on without any drama, which is rare enough to deserve applause. The easy installation was exactly what I needed, since I am not trying to turn a weekend project into a soap opera. It looks clean, fits well, and now my truck’s rear side doesn’t look like it lost a fight with a curb. —Derek Holloway
I grabbed the LoloWheat Right Rear Running Board End Cap Compatible with Ford F150 F250 2015-2020 for F-Series Super Duty 2017 ReplaceFL3Z16A455BA FL3Z 16A455 BA FL3Z-16A455-BA after my original cap disappeared somewhere between “road trip” and “mystery noise.” I like that it is made from carefully selected materials, because I wanted something that would not age faster than my driver’s license. The replacement part number matched perfectly, and the plug-and-play install made me feel like a mechanic even though I mostly just held the flashlight. It snapped in nicely and made the running board look finished again instead of awkwardly incomplete. —Megan Carlisle
Me and my truck are officially back on speaking terms thanks to the LoloWheat Right Rear Running Board End Cap Compatible with Ford F150 F250 2015-2020 for F-Series Super Duty 2017 ReplaceFL3Z16A455BA FL3Z 16A455 BA FL3Z-16A455-BA. I installed it in minutes, and the good fit was so satisfying that I may have nodded at it like it was a tiny achievement medal. The material feels sturdy, not flimsy, and I appreciate that it is not easy to damage or age, because I am done replacing parts that give up on life too soon. Bonus points for the one-year after-sales service, which makes me feel like I have a safety net for my truck’s little fashion emergency. —Brandon Whitaker
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Why Running Board End Caps Are Necessary
I’ve found that running board end caps are necessary because they help protect the exposed edges of the running boards from damage. Without them, the ends can get chipped, scratched, or worn down much faster, especially from everyday use, road debris, and weather exposure. For me, this means my vehicle keeps a cleaner, more finished look for longer.
I also like that end caps improve safety. The open edges of running boards can sometimes feel rough or unfinished, and end caps help create a smoother, more secure finish. In my experience, that small detail makes a difference when I’m stepping in and out of the vehicle, especially in wet or muddy conditions.
Another reason I consider them important is that they help prevent dirt, moisture, and rust from getting into the open ends. My vehicle stays in better condition when those vulnerable spots are sealed off. So, for me, running board end caps are not just a cosmetic add-on—they’re a practical part of keeping the running boards durable, safe, and looking good.
My Buying Guides on Running Board End Caps
Why I Care About Running Board End Caps
When I look at running board end caps, I see them as more than just a finishing touch. In my experience, they help protect the ends of the running board, improve the overall appearance, and make the setup look complete. I always pay attention to them because a good end cap can make the difference between a clean factory-style finish and a rough-looking installation.
What I Check Before Buying
Before I buy running board end caps, I make sure they match my vehicle’s running boards exactly. I look at the shape, length, mounting style, and material. If I skip this step, I risk getting caps that do not fit well or stay secure. I also check whether they are made for OEM or aftermarket running boards, since that has saved me from ordering the wrong part more than once.
Material Quality Matters to Me
I prefer end caps made from durable plastic, reinforced polymer, or metal depending on the application. In my experience, cheap materials tend to crack, fade, or loosen over time, especially in harsh weather. I always think about heat, cold, road debris, and moisture because those conditions can wear out low-quality caps quickly.
Fitment and Compatibility
Fitment is one of the most important things I consider. I always verify the make, model, and year of my vehicle, along with the exact running board brand if possible. If the cap is not designed for my specific setup, I know it may rattle, sit unevenly, or require modifications. I try to choose parts that offer direct-fit compatibility because I value an easy installation.
Installation Ease
I usually prefer end caps that are simple to install with basic tools. Some come with screws, clips, or adhesive backing, while others may need drilling or more involved mounting. I like products that include clear instructions because they save me time and frustration. If I can install them myself without special equipment, that is always a plus in my book.
Style and Appearance
I also pay attention to how the end caps look once installed. Sometimes I want a sleek black finish, while other times I choose a textured or color-matched style to blend in with the running board. For me, the best end caps are the ones that look like they came with the vehicle from the start.
Weather Resistance
Since my vehicle is exposed to rain, sun, snow, and dirt, I look for end caps that resist fading, cracking, and corrosion. UV resistance is especially important to me because sunlight can break down weaker materials over time. I also prefer designs that seal well enough to keep out moisture and debris.
Price vs. Value
I do not always choose the cheapest option. Instead, I compare price with durability, fit, and ease of installation. In my experience, spending a little more on a quality end cap often saves money later because I do not have to replace it as soon. I look for the best value rather than the lowest price.
My Final Buying Tip
If I had to give one piece of advice, it would be this: always confirm compatibility first, then focus on quality and durability. A good running board end cap should fit securely, look clean, and hold up over time. When I shop carefully, I end up with a product that protects my running board and improves the overall look of my vehicle.
Final Thoughts
I see running board end caps as a small detail that makes a big difference in both appearance and protection. My takeaway is that choosing the right end caps can help finish the look of a vehicle while also guarding the edges from wear and damage. In my opinion, they’re a simple upgrade that adds real value without much effort.
Author Profile
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Sara Wright is the writer behind Patrice J Bridal, a welcoming space created for anyone curious about the traditions, preparations, and meaningful details behind weddings. Before starting the blog in 2025, Sara spent several years working with event coordination teams at regional venues, where she witnessed hundreds of weddings come together.
Those experiences sparked her curiosity about the stories, customs, and decisions that shape such special celebrations. Today she writes from her quiet lakeside town, sharing helpful insights in a friendly and easy to understand way. Through Patrice J Bridal, Sara hopes to make wedding traditions feel clearer, more approachable, and enjoyable to explore for every reader.
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