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BAK 450339 BAKFlip MX4 EZ-Lift tonneau cover for 2021-2026 Ford F-150 and F-150 Lightning
BAKFlip MX4 EZ-Lift hard folding tonneau cover installed on a 2021-2026 Ford F-150
BAKFlip MX4 tonneau cover folded open for full bed access on a Ford F-150
BAK 450339 EZ-Lift torsion assist mechanism for the BAKFlip MX4 Ford F-150 tonneau cover
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BAK 21-26 Ford F-150/ 2022+ Lighting 5ft 7in Bed BAKFlip MX4 EZ-Lift

BAK
BAK450339
192631055235
Tonneau Covers - Hard Fold
2 Units In Stock - Ships Next Business Day
$ 1,372.79 $ 1,344.99
$ 1,344.99

One-Hand Bed Access For Your F-150, No Heavy Lifting Required

The BAK 450339 EZ-Lift takes the best-selling hard folding tonneau cover on the market and cuts the lift force to just 10.5 lbs, down from nearly 30 lbs on standard hard folding covers. Multi-layer aluminum panels over a high-density polymer core still deliver the 400 lb capacity and tight weather sealing BAKFlip owners rely on, now paired with an auto-latch system and self-unlatching middle panels that make daily use noticeably easier.

Key Features

  • EZ-Lift system cuts lift force to 10.5 lbs versus nearly 30 lbs on standard hard folding covers
  • Oversized paddle handle auto-unlatches as you lift, no extra step required
  • Patented auto-latch system locks the moment the cover closes
  • Self-unlatching middle panels eliminate manual cable pulls
  • Premium-grade multi-layer aluminum construction over a high-density polymer core
  • Folds fully to the cab for 100 percent bed access, no removal needed
  • Does not block the third brake light or integrated camera in any position
  • Bolt-on installation with no drilling, typically under 30 minutes
  • 400 lb weight capacity, evenly distributed
  • Textured matte black finish, assembled in the USA

This Part Fits

Year Range Make Model Trim
2021-2026 Ford F-150 5'7" Bed
2022-2026 Ford F-150 Lightning 5'7" Bed

Specifications

Detail Value
Manufacturer BAK Industries
Part Number 450339
UPC 192631055235
Material Aluminum panels, high-density polymer core
Finish Matte Black
Weight Capacity 400 lbs, evenly distributed
Lift Force 10.5 lbs
Warranty 5-Year Limited

What's Included

  • 1x BAKFlip MX4 EZ-Lift hard folding tonneau cover
  • Tight-fit clamps and mounting hardware
  • Installation instructions

About BAK Industries

BAK Industries has built the best-selling truck bed cover line in the country by focusing on durable aluminum construction, tight-fitting seals, and installation that most owners can complete themselves in well under an hour.

Related Parts

  • BAK BAKFlip MX4 EZ-Lift covers for other truck platforms
  • BAK BAKBox2 tailgate storage box

FAQ

What is the BAK 450339?

The BAK 450339 is an EZ-Lift hard folding tonneau cover for the 2021-2026 Ford F-150 and 2022-2026 F-150 Lightning with a 5'7" bed.

Does this cover fit the F-150 Lightning?

Yes. The BAK 450339 fits the 2022-2026 Ford F-150 Lightning with a 5'7" bed.

How much force does it take to open the cover?

The EZ-Lift system reduces the force needed to open the cover to about 10.5 lbs, roughly one-third the effort of nearly 30 lbs required by standard hard folding covers.

Does this cover require drilling to install?

No. Installation is bolt-on with tight-fit clamps and typically takes under 30 minutes with no drilling required.

How much weight can the cover hold?

The cover is rated for 400 lbs of evenly distributed weight.

Does the cover block the third brake light or backup camera?

No. The MX4 EZ-Lift design does not block the third brake light or an integrated camera in any position.

What warranty comes with this cover?

The BAK 450339 is backed by a 5-year limited warranty against defects in materials and workmanship.

Will the cover interfere with tailgate step or camera systems?

No. The cover is designed to keep full visibility of the third brake light and any integrated tailgate camera in every open or closed position.

Install Instructions

  1. Clean the bed rails and remove any factory bed rail caps
  2. Position the tight-fit clamps along the bed rail and hand-tighten to hold the cover in place
  3. Align the cover panels evenly with the bed opening before final tightening
  4. Tighten all clamps securely with the provided hardware, no drilling required
  5. Test the paddle handle latch and auto-latch panels for proper operation
  6. Fold the cover fully to the cab to confirm 100 percent bed access before loading cargo

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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