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RealTruck

RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448126 | Fits 2015-2022 Chevy/GMC Colorado/Canyon 5' 3" Bed (62.7")

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Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Mar 24
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Style: BAKFlip MX4


Size: 5' 3" Bed


Features

  • Fits 2015 - 2022 Chevy/GMC Colorado/Canyon 5' 3" Bed (62.7")
  • Made in the USA with Global Materials
  • ULTIMATE SECURITY | The BAKFlip MX4 tonneau cover has durable aluminum panels that automatically latch as the cover is partially or fully closed, and is fully locked once your tailgate is closed
  • STYLISH MATTE FINISH | Featuring matte-finished aluminum panels, protecting against marks, scratches and UV damage; as well as premium upgrades to the perimeter seals and hardware
  • 100% BED ACCESS | Operate this cover closed, folded or flipped up, all without covering the 3rd brake light. Paired with a dual action tailgate seal for tailgate operation open or closed

Description

America’s best-selling truck bed cover just got even better.Introducing the BAKFlip MX4 Gen 3—the latest evolution of RealTruck’s most popular tonneau cover. Now better than ever, the BAK has redesigned the for improved strength, security, and all-weather performance. The Gen 3 MX4 features alloy-based construction, including heavy-duty aluminum side rails and top panels, reinforced with high-density polymer cores. This updated design delivers a 22 percent increase in strength over the previous generation, making it even more capable of handling daily use, heavy loads, and harsh environments. Security has also been upgraded. BAK’s patented auto-latching system secures the cover automatically when closed. Newly engineered lock components provide added resistance to tampering and forced entry, allowing you to transport your gear with confidence. In rough weather, the Gen 3 MX4 holds strong. Revised EPDM perimeter seals and tight-fit clamps offer the best seal yet, helping prevent water intrusion along the bed rails. A longer dual-action tailgate seal weatherproofs the tailgate while preserving full functionality, whether the cover is open or closed. While the MX4 is built tough, it doesn’t compromise on looks. The flush-mount design gives it a sleek, low-profile appearance, while a textured matte-black finish across all surfaces delivers a clean, subtle aesthetic. Installation is easier than ever with a new click-in rail system that cuts install time by up to 12 percent. Day-to-day use is just as simple—drop the tailgate, unlatch, and fold the cover forward. For complete bed access, fold the cover against the cab without blocking your third brake light. The BAKFlip MX4 Gen 3 is proudly assembled in Missouri using globally sourced materials and backed by a 5-year warranty.

Brand: RealTruck


Style: BAKFlip MX4


Exterior Finish: Aluminum


Lock Type: Tailgate


Manufacturer: BAK


Brand: ‎RealTruck


Style: ‎BAKFlip MX4


Exterior Finish: ‎Aluminum


Lock Type: ‎Tailgate


Manufacturer: ‎BAK


UPC: ‎819275042055


Automotive Fit Type: ‎Vehicle Specific Fit


OEM Part Number: ‎448126


Global Trade Identification Number: ‎55


Model: ‎BAK448126


Item Weight: ‎71 pounds


Item model number: ‎448126


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎448126


Date First Available: March 15, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Mar 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Craftsman of this product.
Style: Revolver X4s Size: 5' 3" Bed
Great product. Enjoying the look and craftsmanship of this product. Fits exactly as needed. Used a friend to help install. Possibly to install alone if needed. Would buy again
Reviewed in the United States on August 11, 2025 by jaidee
    • Great functionality at a great price!
Style: BAKFlip G2 Size: 5' 3" Bed
I bought this this tonneau cover after doing much research. I decided that a tonneau cover that allowed me to partition the bed would work best. This bed cover does everything I want. I can use as much or as little of the bed as I'd like. Installation was easy and the instruction manual kept things very straight forward. I watched several videos on the installation prior to my purchase. Positives: - relatively easy installation - allows me to utilize all of the bed when open. - ability to lock with the tailgate - sleek design that sits flat - appears to be solid and sturdy - price (relatively mid-range) Negatives: So far I don't have any complaints. The one minut issue I have found is that it's not completely water tight. However, this is not really a problem for me. I did not expect it to keep out 100% of the rain. We had several days off heavy rain and there was a little water that trickled in near the corners but everything that I store in the bed is completely dry. This has easily been one of my best purchases from Amazon. ... show more
Reviewed in the United States on July 16, 2019 by Amazon Customer
    • Easy install, great fit, some issues given the price
Style: Revolver X4ts Size: 5' 3" Bed
Great fit and look. Excited to add my elevate rack. There are some parts that are strangely flimsy/poorly designed for a system this expensive. 1. Particularly the plastic pieces on the corners are ridiculously flimsy. Opening and closing the cover makes me feel like I will break them. 2. The Latch system sticks and cable gets caught in the holes. Pulling the cable only unlatches one side most of the time. Again for a system this expensive nothing should feel cheap and the latch cable release system feels cheap and flimsy. 3. While the cover fits well in almost every place there are some gaps between the cover and the tailgate that seem easy to solve, but problematic on a system this expensive. This is particularly apparent where the plastic corners meet the corner of the tailgate. Others have mentioned this as well. ... show more
Reviewed in the United States on May 30, 2024 by ART
    • Totally Love this cover
Style: Revolver X4s Size: 5' 3" Bed
I danced around getting this cover for too long. Installation is as easy as one of these covers gets. It is very strong and looks great. Locks securely as long as your tailgate locks, and no need to keep track of a key...like the one I lost from my last cover. So easy to open and close and even totally remove if you have to. previously I sacrificed some space to my tri-fold, but since getting this I have never looked back, unless to say..why did i wait so long =) I get a drip or two near the tail end in heavy rain or the car wash, but I haven't taken the time to see why as it has not been enough to bother me. ... show more
Reviewed in the United States on January 14, 2025 by zanetsu
    • Good quality & fit for 2018 Chevy Colorado
Style: BAKFlip G2 Size: 5' 3" Bed
Review Image by Peter Ablanczy Peter Ablanczy
Review Image by Peter Ablanczy Peter Ablanczy
Review Image by Peter Ablanczy Peter Ablanczy
Purchased and installed both the BakFlip G2 cover and the BakBox2. It took a little over three hours to install both by myself. The BakFlip replaced a modestly priced brand x which was certified to fit but turned out to only “kinda fit”: Promptly returned brand x and bought the BakFlip. The superior quality and fit were immediately noticeable. Nice rubber seals all around the tonneau cover where it contacts the truck rails and tailgate. Looks great, and only the next car wash or hard downpour will determine its weather resistance. The only issue I had was the elevator bolts that secure the cover to the front of the rails were a tad bit short to engage the threads on the Star Knobs when the included lock washers were added. So far, it seems to be holding fine with just the rubber and steel washers. The star knobs do pull the bracket up some, so my guess is once that bracket settles into its current position, I will be able to add the lock washers as well. My Colorado replaced my aging Avalanche, which had had two large side compartments to hold bulky, dirty accessories (receiver hitch, booster cables, tied owns & buggies, and more). The Colorado only had a shallow compartment under the rear seats, which didn’t hold much. The BakBox solves this issue nicely, and if emptied, can even be flipped back completely under the BakFlip cover to make more room for large items that require more cargo space. ... show more
Reviewed in the United States on May 18, 2022 by Peter Ablanczy Peter Ablanczy
    • Awesome cover! Love it
Style: BAKFlip MX4 Size: 5' 3" Bed
After I got a few quotes for a camper shell for my truck that would cost about as much as some used cars, I opted to buy a cover like this instead. I actually ordered the Gator brand FX first directly from the Gator website. I received a previous customers incomplete and busted return. So it took a while to return it and the company itself is pretty hard to work with. I’m pretty sure Bakflip and Gator are the same company, if you look at the websites they look identical. Because of the difficulty working with the company I decided to purchase from Amazon who will take any return back if you have a problem. Went with the bakflip so I could close the tailgate without opening the last panel, other than that they are pretty much identical to the Gators. I got a good new one in a nice box and it installed really easy and quick. You’re going to need a friend to hold the top of the bolt that connects the cover to the rails so you can push from underneath and tighten the star knobs. I don’t expect it to be waterproof, some water will surely leak in but the drain tubes went in really easy (zip tie the top section that connects to the rails!) and seem to work. Stick a little piece of the foam bulkhead stripping on the ends of the rail gutters at the tailgate end to keep water from dumping out that side. I don’t see why they left one side open like that. If you have a lot of pine straw and leaves then these gutters will probably need to be cleaned somewhat regularly. The whole cover could be another inch long to have better overlap at the front and tail ends but it works. If they could build in some battery powered motion lights to the underside of the panels would be really cool. I like it a lot but be careful ordering direct from the manufacture site prepare to talk with several people if you have issues. ... show more
Reviewed in the United States on October 3, 2021 by review
    • It’s okay. Wouldn’t call it secure though
Style: BAKFlip G2 Size: 5' 3" Bed
Definitely not the most secure. I’d break into this with a flat bar in seconds.
Reviewed in the United States on January 2, 2026 by B Johnson

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