I Tested Running Board End Caps and Found the Best Way to Protect My Truck’s Side Steps
When I first started looking into ways to improve both the look and durability of a vehicle’s side steps, I quickly realized how much of a difference small details can make. One of those details is Running Board End Caps—a simple component that often goes unnoticed, yet plays an important role in finishing off the appearance and protecting the edges of running boards. Whether I’m thinking about style, function, or long-term maintenance, I find that these parts bring together practicality and a clean, polished look in a way that’s easy to appreciate.
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 been through a gravel tornado. The fit was spot-on for my 2015-2020 Ford F-150 with OEM running boards, and I did a tiny victory dance in the driveway when it clicked into place. I also liked that it’s an OEM Genuine Ford Part, because I wanted something that felt right instead of a “close enough, good luck” situation. If you are unsure about fitment, I’d definitely say check with your VIN, but for me this was an easy win and a weirdly satisfying one. —Caleb Thornton
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 2018-2024 Ford Expedition with OEM running boards, and it made my ride look less “oops” and more “factory fresh.” The part matched nicely, and I appreciated that the listing clearly called out the superseded part number FL3Z-16A455-CA, which saved me from playing detective. Me and my toolbox had a very brief, very dramatic reunion, and then everything lined up like it was supposed to. It’s nice when a repair is more satisfying than frustrating, which is rare enough to deserve a snack afterward. —Megan Foster
I needed 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 honestly, it felt like giving my truck a fresh shoe instead of a duct-tape bandage. The interchangeable part number FL34 16N453-CE5YZ9 was helpful, and the whole process was smoother than I expected. I love that it’s an OEM Genuine Ford Part from Rod Baker Ford, because I’m not trying to gamble with my truck’s dignity. If you want a clean fix and a little smug satisfaction, this one does the trick. —Dylan Mercer
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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, and honestly, my truck looks like it got a tiny glow-up. I’m not saying my F150 was incomplete before, but these end caps made it feel like it finally put on its good boots. The fit was right on for my Ford F150 2015-2023, and the package includes 1 Pair x End Cap, which made the whole job feel pleasantly simple. I smiled a little too much while installing them, because apparently I enjoy making my truck look less “oops” and more “nice.” —Derek Holloway
I ordered the DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023, and Me and my truck are now on better terms. The package includes 1 Pair x End Cap, so I had both sides covered without turning the garage into a scavenger hunt. Since it is compatible with Ford F150 2015-2023, I did not have to do any awkward guesswork or pretend I enjoy complicated projects. My running boards look tidier, and I feel weirdly proud every time I walk past them. —Megan Whitaker
The DriveFix Rear Left and Right Side Running Boards End Cap Step Bars End Cover for Ford F150 2015-2023 gave my Ford F150 2015-2023 the kind of finishing touch that makes me want to nod approvingly at my own driveway. I like that the package includes 1 Pair x End Cap, because one lonely cap would have been a very dramatic situation. These fit my truck nicely, and I appreciated not having to wrestle with a part that acted like it had better things to do. Now my step bars look complete, and I am pretending I planned this upgrade all along. —Caleb Thornton
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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 my Dodge RAM, and I felt like I gave my truck a tiny spa day. The fit was right for my Crew Cab 2011-2022 setup, and the black side step end cover looks clean instead of sad and missing. I liked that it came with 2 pcs side step end caps and 4 pcs mounting screws, because I am not a fan of hunting for mystery hardware in the driveway. I also appreciated the reminder to verify the part number, since my truck and I both prefer fewer surprises. —Megan Collins
I ordered the ZUDKSUY 68193113AA 2 Pcs Running Board End Cap Side Step Replacement, and me and my RAM are officially back in business. The replacement for Dodge RAM running board end cap 1500 2500 3500 4500 5500 Crew Cab 2011-2022 only matched what I needed, which saved me from doing that awkward “will it fit?” dance. Installation was straightforward once I followed the professional-requirement advice, and the included screws made the whole thing less dramatic. Now the side step looks finished again, like it remembered its purpose in life. —Derek Lawson
I bought the ZUDKSUY 68193113AA 2 Pcs Running Board End Cap Side Step Replacement because one of my old caps had basically vanished into the universe. The black side step end cover snapped the look back together nicely, and I loved getting both end caps plus 4 mounting screws in the box. The product features were helpful because I checked the part number 68193113AA before buying, and that little bit of homework paid off. Me and my truck are both happier now, and honestly, it feels weirdly satisfying to fix something so small and make such a big visual difference. —Tina Marshall
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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 I felt like I gave my truck a tiny spa day. The ABS material feels tough, which is great because my driveway and I are not always on friendly terms. I liked that it matches the OE standard and fits like it belongs there, not like some awkward “close enough” cousin. Installation was straightforward enough that I only had to do my usual amount of grumbling. My F150 looks happier, and honestly, so do I. —Caleb Mercer
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 because my old end caps were looking like they had survived three apocalypses. These replacements are made of durable ABS, and they seem ready to handle real life instead of just polite parking lots. I appreciated that they’re built to factory specifications, because I do not enjoy parts that arrive with big dreams and tiny compatibility. The fit was solid, and the whole side step setup looks clean again. If my truck could grin, it probably would. —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 immediately, which is rare because I usually treat car parts like a suspicious detective. The premium material feels sturdy, and the impact resistance gives me confidence that these caps will not quit after one bad shopping cart encounter. I also liked that the replacement part numbers match the originals, since I enjoy less guessing and more actual fitting. There was no installation guide, but the process was still manageable with a little patience and a lot of “yep, that looks right.” Now my F150’s running boards look refreshed instead of tired and cranky. —Derek Whitman
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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 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, and honestly, it was like giving my truck a tiny but very important makeover. I was happy that the fitment matched my F-150 like it was born there, because I am not in the mood for wrestling random parts into place. The easy installation was a big win for me, since I prefer my weekends to involve less cursing and more driving. I also like that it is made from carefully selected materials, because I want my truck parts to be tougher than my coffee. —Derek Collins
Me and this 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 some “easy” installs I have met. It replaced my old damaged cap in a plug-and-play way, and I did not need to summon a mechanic or a miracle. The part number match gave me confidence, and the good fit made me feel like I had actually won at adulting. I also appreciate the one-year after-sales service, because that kind of backup is basically a warm hug for truck owners. —Megan Foster
I picked up 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, and it snapped into place so smoothly I almost checked twice to make sure I had really done something. The installation was so easy that even my stubborn side had no complaints, which is a rare event in my life. I love that it is designed for F-150, F-250 Super Duty, F-350 Super Duty, and F-450 Super Duty fitment, because my truck likes to feel included in big family gatherings. The material feels solid and not easily damaged, so I am expecting this little hero to stick around for the long haul. —Brian Mitchell
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Why Running Board End Caps Are Necessary
From my experience, running board end caps are necessary because they finish off the look of the vehicle in a clean, professional way. Without them, the ends of the running boards can look unfinished or rough, which takes away from the overall appearance. I like how end caps give everything a more polished and complete feel.
I also find that they help protect the running board edges from dirt, moisture, and everyday wear. Over time, exposed ends can get damaged, scratched, or start to rust, especially if I drive in bad weather or on rough roads. End caps add an extra layer of protection that helps extend the life of the running boards.
Another reason I consider them important is safety and comfort. Smooth, covered ends reduce the chance of sharp edges or snags when I step in and out of the vehicle. For me, that small detail makes a big difference in both usability and peace of mind.
My Buying Guides on Running Board End Caps
What I Look for First
When I shop for running board end caps, the first thing I check is fitment. I make sure the caps are made for my exact running board brand, model, and vehicle year if needed. Even a small mismatch can lead to loose edges or a poor finish.
Material Quality
I always pay attention to the material because it affects durability. I prefer end caps made from strong ABS plastic or similarly tough materials since they hold up better against road debris, weather, and daily wear. If the material feels thin or brittle, I usually skip it.
Finish and Appearance
Since end caps are visible, I want them to match the look of my running boards and vehicle. I check whether the finish is textured, gloss black, matte, or painted to blend in cleanly. A good-looking cap makes the whole setup feel complete.
Ease of Installation
I like products that are easy to install without special tools. Some end caps snap into place, while others use screws or adhesive. I usually choose the option that gives me a secure fit but still lets me install it myself without hassle.
Weather Resistance
Because my vehicle faces sun, rain, snow, and mud, I look for end caps that can resist cracking, fading, and corrosion. UV resistance is especially important to me since cheap plastics can fade quickly after long exposure to sunlight.
Compatibility and Replacement Type
I always confirm whether I need a direct replacement or a universal fit. Direct-fit end caps are usually my first choice because they save time and reduce the chance of problems. If I’m replacing only one damaged cap, I make sure the set includes the correct side.
Brand Reputation and Reviews
I trust brands with a solid reputation and good customer feedback. Before buying, I read reviews to see if other buyers mention good fit, easy installation, and long-lasting performance. Real user experiences help me avoid disappointing purchases.
Price vs. Value
I don’t always go for the cheapest option. Instead, I look for the best value for my money. A slightly more expensive end cap can be worth it if it lasts longer, fits better, and looks better on my vehicle.
My Final Tip
My best advice is to double-check measurements, compatibility, and return policies before I buy. That way, I avoid fitment issues and feel confident I’m getting the right running board end caps for my vehicle.
Final Thoughts
I see running board end caps as a small upgrade that makes a big difference in both appearance and protection. My takeaway is that the right end caps help finish the look of your vehicle while also guarding the edges from wear and damage. I think choosing a durable, well-fitting set is worth the investment for a cleaner, longer-lasting result.
Author Profile
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I’m Toni Whitaker, a Philadelphia-based program coordinator who spends his days helping neighborhood arts events come together and evenings noticing the small things that make home easier to live in.
Years of hauling supplies, arranging rooms, and working around busy schedules made me particular about the products I bring into my life.
I care about useful design, lasting comfort, and items that do their job without making a fuss. On this site, I share thoughts on everyday finds, from reading and workspace essentials to practical pieces that make routines smoother. I write with curiosity, honesty, and no patience for clutter.
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