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RealTruck

RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448327 | Fits 2015-2020 Ford F-150 6' 7" Bed (78.9")

  • Based on 2,073 reviews
Condition: New
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Availability: Only 3 left in stock, order soon!
Fulfilled by Sparkfish
Arrives Sep 10 – Sep 15
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Style: BAKFlip MX4


Size: 6' 7" Bed


Features

  • Fits 2015 - 2020 Ford F-150 6' 7" Bed (78.9")
  • 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


Material: Aluminum


Lock Type: Tailgate


Brand: ‎RealTruck


Style: ‎BAKFlip MX4


Exterior Finish: ‎Aluminum


Material: ‎Aluminum


Lock Type: ‎Tailgate


Manufacturer: ‎BAK Industries


UPC: ‎819275042345 819275030359


Automotive Fit Type: ‎Vehicle Specific Fit


OEM Part Number: ‎448327


Global Trade Identification Number: ‎59, 45


Model: ‎BAK448327


Item Weight: ‎61.9 pounds


Product Dimensions: ‎69 x 23 x 8.5 inches


Item model number: ‎448327


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎448327


Date First Available: June 2, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 10 – Sep 15

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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Similar Products

Top Amazon Reviews

    • Good cover - but not as durable as hoped
About as good as it gets in tonneau covers- durable, attractive, nearly watertight, and easy to install. Working solo and very carefully it took me under 40 minutes to install the Bakflip F1 on a 2015 F-150 with 5.5ft short box. Helpful hint: most installations route the drain hoses to the plastic plugs near the bottom of the bed. I cut the drain tubes down to about 4 inches long and used the holes in the sides of the stake pockets instead. No drilling required and a perfect fit. Update after 1 year: Trouble with this product. Not as durable as hoped. The panels are made from thin aluminum sheet metal bonded to a foam core. After about 9 months the aluminum started coming unglued from the foam and bowed out. It's completely loose on the underside of the tail section and about half loose on the mid panel. It's bowed out to the point you cannot even press it flat as if it has stretched or pulled out from the sides. Probably letting the panels fall closed eventually works the metal loose from the foam. The coating on the aluminum sheets is turning to powder and wipes off rather easily so it's turning from black to silver. The latch bar on the tail section just fell off one day! It was held on with a 1/2in wide strip of adhesive foam tape and seven small rivets. One day I closed the panel and it just fell right off. Warranty service has not been forthcoming. They said they would repeatedly send a kit to repair the latch but never have after months of pretending they didn't have my shipping address (when it was present prominently on every single message I sent them.) Rather frustrating so be prepared to not get any help from the manufacturer. I gave up on them and managed to reattach the latch bar with an ample amount of flexible marine glue and larger rivets. Drilled out the old rivets to slightly larger 3/16 size, cleaned, sanded, and cleaned the surfaces again. Took quite a bit of solvent and scraping to get off the old adhesive tape. I injected a generous amount of glue into the panel through the old rivet holes, put a solid bead of glue enough to squeeze out from the edges of the latch bar, clamped it all together along the whole length and put in about 11 3/16 aluminum rivets. It's there to stay now. Some of the other rubber trim is falling off now and needs to be glued on again. If you want this product I suggest you close the panels gently since they are not very durable. I do not plan to buy another bak cover unless they make improvements. I'm thinking a single piece hard cover is probably a better option now. It will look better longer and be a lot less frustrating. Warranty update: Amazingly Bak Industries does seem to honor their warranty and stand behind their product. After sending them a final message advising that I was giving up on their service they sent me a replacement cover. I was amazed. Buy with confidence. ... show more
Reviewed in the United States on September 8, 2015 by Best Byte
    • Very easy to install!!!
Style: Revolver X4s Size: 6' 7" Bed
Easy installation! Looks fantastic. A bit pricey but well worth the price. I would buy it again. Love the way it looks and fits on my truck. Great product and again very easy to install, love it!!
Reviewed in the United States on April 26, 2025 by Amazon Customer
    • Dry and secure bed!
Style: BAKFlip MX4 Size: 5' 7" Bed
Review Image by Scott Laing Scott Laing
Review Image by Scott Laing Scott Laing
Review Image by Scott Laing Scott Laing
Review Image by Scott Laing Scott Laing
We just got a new truck a few months ago and on our first camping trip with it we quickly learned how much of a pain it is to feel like you have to move things like child carrier backpacks etc into the cab of the truck to secure it if you stop somewhere for lunch. We had a three week road trip to Utah and Canada planned and I knew we’d want a good tonneau cover to secure our cargo in the bed of the truck and keep it dry. After a lot of research on tonneau covers I settled on getting this one and can honestly say I couldn’t be much happier. While on our 5,000 mile round trip we drove through wind and torrential rain at times and everything in the bed stayed dry. Even after raining for two days straight in Canada. I did use the included drain tubes and had them drain out the holes drilled in the plastic plugs they tell you to drill through in the instructions. With getting up to 85 mph on some roads and with crosswinds I never had any problems with the cover rattling in the wind like I had heard one reviewer talk about. I think it may have been a fluke or possibly a different method of installation that may have given them the problem. Having the BackFlip Tonneau cover was a game changer for us and my wife and I were both so glad I had insisted on getting it before our trip. It was pretty easy to install on my 2020 Ford F150 and I had it installed within about an hour and a half including the time it took to find tools etc. It looks really clean and sleek and really serves its purpose quite well. I’d recommend it to my friends and anyone of you who might be looking for a tonneau cover. ... show more
Reviewed in the United States on July 18, 2023 by Scott Laing Scott Laing
    • Broken on arrival
Style: Revolver X4s Size: 5' 7" Bed
Review Image by Grant Grant
Review Image by Grant Grant
Review Image by Grant Grant
Review Image by Grant Grant
Review Image by Grant Grant
Review Image by Grant Grant
**FINAL UPDATE** After my last update i did receive the replacement roll top and this thing has been flawless for a couple years (yea, totally forgot about updating my review). It has held up really well with Houston weather, operation is simple and keeps everything secure with minimal or no water leakage into the bed. Also i do not have any rattling or flexing while driving (generally 80+ mph down the interstate, gotta keep up with that Texas fast lane). Updating from 1 star to 4 stars, would be 5 if i didnt have all the initial issues. **UPDATE** Received a reply within 2 days of my original review, took me a few days to send the information they were requesting because I was busy with other things. They requested, Serial Number (located on a sticker on the underside of the cover, close to the bulkhead), Shipping Address, Proof of Purchase, and pictures of the issue (Please note: I don't know if theyre flexible with this but if you encounter issues, TAKE PICTURES!). I received a reply within 2 days of sending them the proof they requested and they stated a new cover will be sent to me and had additional instructions on what to do with the old cover, they did not request I send it back. They also stated that theyre sending the cover ONLY, all hardware and rail from the original purchase will be used again. Will update once I receive the replacement. Unfortunately because of demand, theyre estimating another 2 - 3 weeks before the new cover gets shipped. Keeping my 1 Star review until I have a working product. **ORIGINAL REVIEW STARTS HERE** Decided to pull the trigger on this $1K+ cover for my truck. A lot of reviews were read and watched, and seemed to really fit what I needed. A low profile hard cover that didn't take up any bed space and easy to operate. Well after waiting a little over a week I finally got the cover in and started my install. Install went well enough, nothing too difficult, but once I put the cover on to roll out and get positioned I noticed the first issue. The plastic guard piece closest to the tailgate that is supposed to help prevent peeling of the seal and guard you from sharp edges of the aluminum was broken off. Not a deal breaker, I've actually seen several reviews that said this has happened and BAK Industries has simply sent a replacement piece to clip on. Continued my install and noticed a bulge at the top of the cover towards the bulkhead, I immediately knew it was not supposed to look like that. So i went to investigate and to my surprise, one of the links to the cover was actually broken. This completely breaks the covers operation. The full siderail locking isnt able to engage, causes issues with closing, opening and the end of the cover itself (at the tailgate) ends up bowing causing a huge gap center of the tailgate and the side rails flex upward, also causing issues with contact with the cover and seals on the very corners of the tailgate. I have emailed BAK Industries and will hopefully get a reply soon with some sort of solution, if I don't I will be forced to deal with returning this thing. If they do respond and offer a solution I will update my review with information on that. ... show more
Reviewed in the United States on May 3, 2022 by Grant Grant

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