• BAKFlip MX4 448339 hard folding tonneau cover on a 2021-2026 Ford F-150 5.5 ft bed
  • BAKFlip MX4 448339 folded upright against the cab, showing full bed access
  • BAKFlip MX4 448339 close-up of the RealTruck BAK panel badge
  • BAKFlip MX4 448339 automatic latch and rail security detail
  • BAKFlip MX4 448339 sealed edge-to-edge weather protection
  • BAKFlip MX4 448339 load-bearing hard folding panels
  • BAKFlip MX4 448339 folded for full bed access with cargo
  • BAKFlip MX4 448339 clamp install on a truck bed rail

BAKFlip MX4 Hard Folding Tonneau — F-150 2021-2026 5'7" Bed

BAKFlip MX4 Hard Folding Tonneau — F-150 2021-2026 5'7" Bed

$1,299.99
$1,299.99
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Hard-folding aluminum bed cover for the short-bed 14th-gen F-150. The BAKFlip MX4 (part 448339) folds toward the cab for full bed access and locks with the tailgate for everyday cargo security.

  • Matte-black aluminum panels over a reinforced core
  • Auto-latching panels and dual-action tailgate seal
  • Clamp-on / click-in rail install — no drilling on most trucks
  • 400-lb weight capacity (evenly distributed), per BAK
  • Fits the 5'7" (5.5 ft) bed

Fitment (BAK / RealTruck, BAK-448339): 2021–2026 Ford F-150, F-150 Raptor, and 2022–2026 F-150 Lightning with the 5'7" (5.5 ft) bed. Not for 6.5 ft or 8 ft beds (use other BAK part numbers).

What's included: MX4 cover, rails/hardware, instructions (per BAK packing list).

Professional install is available at Vertex Motorsports in Appleton, WI. Call (920) 716-4005 to book.

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BAKFlip MX4 Hard Folding Tonneau — F-150 2021-2026 5'7" Bed

$1,299.99

  • ACHIEVING

    4.8

    average rating

  • With

    95%

    positive reviews

  • LESS THAN

    3%

    return rate

Does it come with a warranty?

All parts are individually warrantied by the company who produces the part. Please look into each warranty terms and service.

What happens if I don't like it?

Customer satisfaction is our #1 priority so if you are unhappy with something in the build let us know and we can either recommend a part that will better suite your needs or look at more tuning options to meet your expectations.

How fast is shipping?

Shipping will depend on availability of parts. While we stock our most commonly sold parts we do not stock all parts. If a part is on back order or has a lead time we will communicate with you through the whole process so your are not left wondering why a part hasn't shipped yet.

What's the returns policy?

Once a part has been installed we can no longer take the part back.

Returns and Cancelations are subject to a restocking fee.

For our pre made builds sales are final so please contact prior to purchasing to make sure the build meets your expectations, its easier to adjust the build before the purchase rather than after.

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