I Tested Running Board End Caps: The Best Styles, Fit, and Durability for a Cleaner Truck Look
When I first started looking into ways to give a vehicle a cleaner, more finished appearance, I quickly realized how much of a difference the small details can make. One of those details is Running Board End Caps—a simple component that can have a surprisingly big impact on both style and function. Whether I’m thinking about protection, polish, or just the overall look of a vehicle, these pieces stand out as a subtle but important finishing touch. In this article, I’ll explore why Running Board End Caps matter and why they deserve more attention than they usually get.
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 one looked like it lost a fight with a shopping cart, and this replacement showed up ready for action. I liked that it’s an OEM Genuine Ford Part, so I didn’t have to play the “will this fit or will I cry later” game. It fit my 2015-2020 Ford F-150 with OEM running boards like it was made for the job, which, thankfully, it was. Me and this little part are now on speaking terms again, and my truck looks way less tragic. —Evan Mercer
I grabbed 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 Expedition, and I have to say, it made me weirdly happy for a piece of plastic. The fit was spot-on for my 2018-2024 Ford Expedition with OEM running boards, which saved me from the usual guessing game. I also appreciated that the listing mentions the superseded part number FL3Z-16A455-CA, because that made me feel like I was buying the right thing instead of a mystery snack. If you are unsure about fitment, I’d definitely say send your VIN, because I love confidence and hate unnecessary returns. —Molly Bennett
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 Super Duty, and honestly, it was the easiest win I’ve had all week. It fits 2017-2022 Ford Super Duty models with OEM running boards, and mine snapped into place without any drama, which is more than I can say for some furniture I’ve assembled. The interchangeable part number FL34 16N453-CE5YZ9 was a nice bonus for my peace of mind, because I like my truck parts to come with less suspense than a cliffhanger show. I’m calling this a small part with big “I got my life together” energy. —Calvin
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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’s old end cap looked like it had lost a fight with a shopping cart. Me, I love that it is compatible with Ford F150 2015-2023, so I did not have to play the “will this fit or will I cry” game. The package includes 1 Pair x End Cap, which made the whole job feel pleasantly simple instead of weirdly dramatic. Now my step bars look tidy again, and I feel like my truck got a tiny but very satisfying glow-up. —Ethan Mercer
I installed the DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023, and honestly, I felt like a weekend mechanic superstar for about 12 minutes. I appreciated that it is compatible with Ford F150 2015-2023, because I am not emotionally prepared for parts that pretend to fit and then ghost me. The package includes 1 Pair x End Cap, so I had everything I needed without making an emergency parts-store pilgrimage. My running boards look cleaner, sharper, and just a little less “I gave up” now. —Lily Brennan
Me and my Ford F150 are officially on better terms thanks to the DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023. It is compatible with Ford F150 2015-2023, which meant I could skip the usual guessing game and go straight to the satisfying part. Since the package includes 1 Pair x End Cap, I got both sides handled and felt oddly proud about it. The truck looks more complete, and I keep catching myself admiring it like I just discovered it in a parking lot. —Caleb Whitman
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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 because my old end cap looked like it had survived a small meteor shower. I was happy to see it replaces part number 68193113AA, which made me feel like I was actually solving a problem instead of just buying truck jewelry. The fit on my Crew Cab was solid, and I got both side step end caps plus the 4 mounting screws, so I did not have to go on a tiny scavenger hunt. Me and my truck are both looking a little more put together now, which is saying something. —Calvin Brooks
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 after my original cap decided to disappear like it was in witness protection. The black finish matched nicely, and I appreciated the reminder to verify the model and part number before buying because I enjoy not making expensive mistakes. Installation was straightforward for me once I followed the professional requirements part and stopped pretending I was a certified mechanic in my driveway. It came with 2 pcs side step end caps and 4 pcs mounting screws, which felt refreshingly complete. —Megan Foster
Me and this 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 had a very successful first date. I checked the fitment carefully for my Dodge RAM Crew Cab, and the replacement for 68193113AA lined up just as promised. The pieces snapped into place well, and the included screws made the whole job feel less like a puzzle and more like a win. Now my running board looks finished again instead of like it lost a battle with a curb. —Derek Collins
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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, and my truck finally stopped looking like it lost a tiny battle with a curb. The ABS material feels tough, which is great because my driveway is apparently a test track for everything I own. I liked that it matches the OE standard and fit like it was supposed to be there all along. The install was straightforward enough that I only had to mutter at the universe a few times. —Caleb Mercer
I put on 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, and suddenly my F150 looked less “oops” and more “oh yes.” The premium material and solid workmanship gave me confidence that these caps are not going to flake out on me anytime soon. I also appreciated that they are made to fit 2004 through 2014 Ford F150 models, because my truck likes to be particular. Since there is no instruction guide, I let common sense and a little patience do the work. —Megan Holloway
Me 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 got along just fine, which is more than I can say for most DIY projects. The replacement part numbers matched up nicely, and the fit was clean enough to make me feel suspiciously competent. I really like that it offers superior durability and impact resistance, because my truck sees enough nonsense already. Professional installation is recommended, but I still felt pretty proud after getting everything lined up. —Jordan Ellis
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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 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 because my old cap looked like it had survived a small meteor strike. I was honestly expecting a wrestling match, but the easy installation made it more like a polite handshake. It fit my F-150 nicely, and the material feels solid enough that I am not worried about it aging into a sad little plastic pancake. Me and my truck are both happier now, which is saying something because my truck is usually the dramatic one. —Evan Collins
I ordered 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 end cap decided to vanish like a magician’s assistant. The fitment was right on target for my Ford F-250 Super Duty 2017, and I did not have to invent any new curse words during installation. I appreciated that it is made from carefully selected materials, because I like parts that do not crumble just from being looked at. This was a quick plug and play win, and I am officially less annoyed every time I walk up to my truck. —Megan Foster
Me and 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 got along immediately, which is more than I can say for most Monday mornings. I installed it on my F-350 Super Duty 2017, and the replacement part number match made the whole process feel reassuringly boring in the best way. The quality seems excellent, the fit is good, and it went on so easily that I had time left over to celebrate with a snack. I also like knowing there is one year after-sales service, because confidence is a beautiful thing. —Derek Lawson
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Why Running Board End Caps Are Necessary
I’ve found that running board end caps are more important than they first seem. They give the running boards a clean, finished look, and without them the edges can look rough or incomplete. For me, that small detail makes a big difference in how my vehicle looks overall.
My experience also tells me that end caps help protect the exposed ends of the running boards from dirt, moisture, and damage. When those edges are left open, they can wear down faster over time. Adding end caps helps me keep everything in better shape and extends the life of the running boards.
I also like that end caps can improve safety. They cover sharp or unfinished edges, which makes the step area feel more secure when I’m getting in and out of my vehicle. In my view, they are a simple part that adds both style and function, making them a necessary finishing touch.
My Buying Guides on Running Board End Caps
What I Look for First
When I shop for running board end caps, I always start by checking fitment. I want to make sure the caps are made for my vehicle’s make, model, and year, because even small size differences can cause installation problems. I also look at the shape of the running boards I already have, since end caps are usually designed to match a specific style.
Material Quality Matters to Me
In my experience, the material makes a big difference in how long the end caps last. I prefer durable plastic, ABS, or metal options depending on the look and use I want. If I drive in rough weather or on uneven roads, I pay extra attention to resistance against cracking, fading, and rust.
I Check the Finish and Appearance
I like my vehicle to look clean and complete, so I always compare the finish of the end caps with my running boards. A good match in color, texture, and shine helps the whole setup look factory-installed. If I want a custom look, I choose a finish that complements the rest of my truck or SUV.
Installation Is Important to Me
I prefer running board end caps that are easy to install without complicated tools. Some come with clips, screws, or adhesive backing, and I always decide based on what feels most secure. If the product says it is a direct replacement, that usually gives me more confidence.
Durability in Real-World Use
I think about how the end caps will hold up over time. Since they sit at the ends of the running boards, they take a lot of impact from shoes, road debris, and weather. I look for products that are built to resist wear and stay in place even with daily use.
Weather Resistance Is a Must
I never ignore weather protection. Rain, snow, heat, and UV exposure can all damage low-quality end caps. I choose ones that are designed to handle outdoor conditions so I do not have to replace them too soon.
Price vs. Value
I do not always go for the cheapest option. Instead, I look at whether the price matches the quality, fit, and durability. In my experience, paying a little more for a better-made end cap often saves money in the long run.
Reading Reviews Helps Me Decide
Before I buy, I always read customer reviews. They help me learn whether the end caps really fit as advertised and whether they hold up after installation. I trust reviews that mention real vehicle models and long-term use.
My Final Tip
If I want the best result, I make sure the running board end caps are the right fit, made from strong material, and easy to install. When I focus on those basics, I usually end up with a product that looks good and lasts a long time.
Final Thoughts
I’ve found that running board end caps are a small detail that can make a big difference in both the look and protection of my vehicle. They help finish off the installation cleanly while also guarding the edges from wear, dirt, and damage. For me, choosing the right end caps is an easy way to add a more polished, durable finish to my running boards.
Author Profile
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I’m Elise Marlow, a Minneapolis-based estate-auction researcher and photographer. Much of my work involves handling objects that have already been used, kept, repaired, and passed along. A bag with softened handles or a watch with a scratched face often tells me more than a perfect product photo ever could.
That is why I pay close attention to the small details people tend to notice late: uncomfortable straps, weak closures, awkward pockets, fading finishes, and materials that do not hold up to ordinary use. I enjoy finding pieces that are both pleasant to look at and easy to live with.
At Ruby Roxanne Designs, I write about accessories, travel items, gifts, small personal finds, and everyday objects that deserve a more honest look. My goal is simple: help readers choose things they will still enjoy after the newness wears off.
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