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RealTruck

RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448446 | Fits 2024-2026 Toyota Tacoma 5' Bed (60")

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Availability: Only 5 left in stock, order soon!
Fulfilled by Aftermarket Parts!
Arrives Thursday, May 14
Order within 5 hours and 52 minutes
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Style: BAKFlip MX4


Size: 5' Bed


Features

  • Fits 2024 - 2026 Toyota Tacoma 5' Bed (60")
  • THE BEST-SELLING TRUCK BED COVER IN THE WORLD JUST GOT BETTER
  • NOW EVEN MORE SECURE THAN GEN 2 | The new BAKFlip MX4 comes with an updated design tested to keep your gear on theft-resistant lockdown with a patented and upgraded auto-latch locking system.
  • FITS TIGHTER TO KEEP WATER OUT | Improved seals and all-new tight-fit clamps provide state-of-the-art weather protection.
  • PROVEN FOR EXTREMES FROM ALASKA TO FLORIDA | Tested in the harshest conditionsfrom -40 to 180F and zero to 95% humidityand guaranteed by a 5-year warranty.
  • NO WASTED BED SPACE, PARKED OR DRIVING | 100% bed access. All the time. Simply fold to the cab, easily secure, and safely drive with the cover fully open.

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: Matte


Material: Aluminum


Lock Type: Tailgate


Brand Name: RealTruck


Manufacturer Part Number: 448446


Weight Capacity Maximum: 400 Pounds


Manufacturer: BAK


UPC: 192631047544


Automotive Fit Type: Vehicle Specific Fit


Model Number: 448446


Unit Count: 1.0 Count


Included Components: Applicable Hardware, Installation Guide, Tonneau Cover


Manufacturer Warranty Description: Extended 5-Year


Item Type Name: Truck Bed Tonneau Cover


Item Weight: 71 Pounds


Material Type: Aluminum


Lock Type: Tailgate


Style Name: BAKFlip MX4


Exterior Finish: Matte


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 14

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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Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Well packed, perfect fit, and quickly shipped by Amazon.
Style: BAKFlip MX4 Size: 6' Bed
I ordered this cover for my Tacoma in the evening and two mornings later it arrived in fine condition. Very well boxed. I did the installation alone in well under 3 hours with few headaches. The directions could be clearer but they are fairly manageable. The cover fits exactly and looks nice. The latches all worked without adjusting them and the tailgate closes fine. It looks like it will be pretty water repellent, but time/weather may show different. I like the quality and it really looks nice on my Tacoma. ... show more
Reviewed in the United States on March 21, 2026 by Kindle Customer
    • Red 2 people to place it in the truck
Style: BAKFlip MX4 Size: 5' Bed
Is very nice but little hard to put it on place I bought another one before and was very easy you need to have patience to do it right.
Reviewed in the United States on June 5, 2025 by Alma
    • Tough installation on my 2025 Tacoma
Style: BAKFlip MX4 Size: 5' Bed
I have always been a Bakflip user. All of my trucks have had a Bakflip cover. Got a new 2025 Tacoma and this was my first purchase. I consider myself pretty mechanically inclined but this was a bear. Could not align the first of two rails on each side so that the cover latched correctly. After three attempts I went to YouTube and found a video that mentioned bending the rail attachments so I put it in my vise and grabbed a crescent wrench and bent the attaching points in and it went on and aligned much better and got it on. Disappointed with the installation. ... show more
Reviewed in the United States on December 8, 2025 by John P
    • Over Rated + Over Priced + Poor Quality Control = look elsewhere for your 2024 Tacoma cover
Style: BAKFlip MX4 Size: 5' Bed
Review Image by S. Barland
Review Image by S. Barland
Review Image by S. Barland
Review Image by S. Barland
Review Image by S. Barland
Review Image by S. Barland
Review Image by S. Barland
Review Image by S. Barland
Review Image by S. Barland
Review Image by S. Barland
I'm dissatisfied enough that I should have returned this cover. The hard cover itself is great, but the system for installing it on a 2024 Tacoma 5 foot bed is poorly designed. The part number is 448446, which is the same part number for the previous gen Tacoma. This should have been a clue. The instructions were edited to mention the new gen 4 Tacoma, but the instructions probably haven't been changed from gen 3. No problems mounting the heavy main Bakflip rail to the truck bed's factory rail which takes 3 clamps per side. The problems start with the Bakflip's adapter rail that holds the cover to the main rail....its very thin metal and requires another 3 clamps per side. I found it easiest to disassemble the adapter rail clamps so I could ensure the outer half of the clamp was properly seated in the thin metal adapter rail before bolting it to the inner half of the clamp at the Bakflip main rail. Honestly, it felt like installing metal window blinds. The adapter rail clamps at the front of truck bed require the "alternate mounting position" otherwise the lock knob used to secure the cover to the adapter rail will hit the adapter rail clamp. I watched several videos and read the instructions several times before starting this install. I followed the instructions to the T whenever possible. The cover ships with masking tape over the holes drilled in the aluminum frame for the safety strap receptacle. Following the instructions, I had the cover mounted on the truck when I removed the masking tape and was greeting with a pile of aluminum shavings. These shavings got everywhere and even scratched the surface of the cover. The plastic storage clip for one of the safety straps was nearly broke off, too. See my photos to make sense of my word salad......Bottom line, check out the competition before buying this $1000 cover for your 2024 Tacoma. If I had paid $500, I wouldn't be so annoyed by these problems. The Bakflip is a major player in tonneau covers, so I'm hoping RealTruck will come out with an upgrade kit after enough Tacoma owners complain. ... show more
Reviewed in the United States on December 9, 2024 by S. Barland
    • good fit
Style: BAKFlip MX4 Size: 6' Bed
Fit perfectly on my 2025 Toyota Tacoma. Took about 30 min to install.
Reviewed in the United States on February 22, 2026 by John
    • Nice looking but a pain to install
Style: BAKFlip MX4 Size: 5' Bed
Review Image by Keith W.
Review Image by Keith W.
Review Image by Keith W.
I took me several hours to get this right. The 6 black clamps have to just like the 2nd picture into the lower groove...not the grove above it. The clamp on both sides near the front of the cab shown in the 3rd pictures only fits if you have them at an angle. This is a bad design but all looks good now at least cosmetically. I have yet to drive in the rain to see if this leaks The company needs to create an installation video for this cover. I could not find one anywhere on the internet that was decent. The paper instructions are horrible. I am giving it a 4 Star just because it looks good but for $900....I might have overpaid ... show more
Reviewed in the United States on November 22, 2024 by Keith W.
    • Easy enough for one person to install
Style: BAKFlip MX4 Size: 5' Bed
Bought for bed of truck. Was easy enough fir one person to assemble and install. Great quality.
Reviewed in the United States on December 7, 2025 by LB
    • Price calidad
Style: BAKFlip MX4 Size: 6' Bed
Review Image by ricardo
Muy fasil de instalar y la mejor calidad de tapa
Reviewed in the United States on February 10, 2026 by ricardo

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