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BAKFlip MX4 Hard Folding Tonneau Cover 448121

Product Information
List Price:
$1,033.20
Our Price:
$929.88
Rating:
4.8 (19 reviews)
Part #:
448121
UPC:
819275042017
Applications:

Description

  • Constructed of aluminum panels with a matte black powder coat
  • EPDM seals provide maximum water resistance
  • Holds up to 400 lbs of evenly distributed weight
  • Full bed access in seconds
  • Installs with no drilling
  • Universal tailgate seal
  • 3 year warranty
  • Made in the USA

Measure Your Truck Bed for a Tonneau Cover

Does your truck have a track system?

The BAKFlip MX4 features aluminum panels that are finished in a UV resistant, matte black powder coat. The aluminum provides structure and rigidity while the durable powder coat finish protects against the harsh UV rays. The MX4 uses EPDM rubber seals and hinges so it provides maximum security from rain and snow. The tonneau rails also aid in this by channeling excess water through the provided drain tubes.

The BAKFlip MX4 installs easily with no drilling thanks to the clamp-on design. You only need basic tools like a socket wrench to complete the installation on most vehicles. A great feature the MX4 offers is the ability to gain full bed access without having to remove the cover completely. You simply fold the cover panel by panel to the front of the bed, then lean it against the cab and secure it with the prop rods that are mounted to the rails. The truck can safely be driven with the cover in this position at highway speeds. Closing the cover is simple due to the automatic latching system that will secure the cover as you fold each panel against the bed rails.

BAK Industries warrants this cover against any manufacturing defects for a period of 3 years. The cover also is made in the USA so you can rest easy knowing the quality is second to none.

Manufactured by BAK Industries, a Truck Hero company.

View Available Part Numbers For This Product Line

California Residents: Prop 65 Warning


Fits

  • 2014-2018 Chevy Silverado 1500, 6'6" Bed
  • (2019) Chevy Silverado 1500 Legacy, 6'6" Bed
  • 2015-2019 Chevy Silverado 2500, 6'6" Bed
  • 2015-2019 Chevy Silverado 3500, 6'6" Bed
  • 2014-2018 GMC Sierra 1500, 6'6" Bed
  • (2019) GMC Sierra 1500 Limited, 6'6" Bed
  • 2015-2019 GMC Sierra 2500, 6'6" Bed
  • 2015-2019 GMC Sierra 3500, 6'6" Bed

Frequently Asked Questions

BAKflip Comparison Aluminum FRP (Fiberglass reinforced polymer) Vinyl Top
Tonneau Cover BAKflip G2 BAKflip MX4 BAKflip CS-HD BAKflip FiberMax BAKflip F1 BAKflip CS-F1 BAKflip VP
Outer Panel Aluminum Aluminum Aluminum FRP FRP FRP Vinyl
Inner Panel Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum
Dent & Scratch resistant outer panel No No No Yes Yes Yes Yes
Finish Glossy powder-coat Textured Matte Powder-coat Glossy powder-coat Glossy Black Glossy Black Glossy Black Textured vinyl
UV Resistance Premium Premium Premium Standard Standard Standard Standard
Core .5" EPS .75" EPS .75" EPS .5" EPS .75" EPS .75" EPS .5" EPS
Frame Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum
Latch Housing Aluminum Injection Molded Injection Molded Aluminum Injection Molded Injection Molded Aluminum
Weight Rating (evenly distributed) 300 lbs 400 lbs 400 lbs 300 lbs 400 lbs 400 lbs 250 lbs
Rack weight rating (evenly distributed) N/A N/A 500 lbs N/A N/A 500 lbs N/A
Hinge Style EPDM Synthetic Rubber EPDM Synthetic Rubber EPDM Synthetic Rubber EPDM Synthetic Rubber EPDM Synthetic Rubber EPDM Synthetic Rubber EPDM Synthetic Rubber
Warranty 2 yr 3 yr 2 yr 2 yr 3 yr 3 yr 1 yr
Rails Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum
Bed Rail Clamp Material Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum
3rd brake light visible w/cover open Yes Yes Yes Yes Yes Yes Yes
Includes rack system No No Yes No No Yes No
Works with BAK Box 2 Yes Yes Yes Yes Yes Yes Yes
Partial access to stake pocket holes Yes Yes Yes Yes Yes    
BackRack Headache Rack compatible w/ BackRack adapter Yes Yes No Yes Yes No Yes


Videos

Watch This Video
BAKFlip MX4 Tonneau Cover Fast Facts on a 2012 Dodge Ram 1500
(01:18)
Watch This Video
BAK MX4 Tonneau Cover
(03:42)
Watch This Video
BAKFlip MX4 Tonneau Cover Fast Facts
(00:40)

Review

Product Reviews Summary

Overall
4.8 
Appearance
4.9
Price / Value
4.3
Ease of Installation
5.0
Quality
4.7
19  Customer Reviews
5 Star
17   
4 Star
1   
3 Star
1   
2 Star
0   
1 Star
0   
Order by

Not really satisfied.
Part #: BAK-448121 Posted on
Was this review helpful?
3.0
- 2015 Chevy Silverado 1500 (JOLIET, IL)
Appearance
Price / Value
Ease of Installation
Quality
I don't know why my product seems to be a defect from factory on side seals top or what ,delivered with missing parts,appearance ok not fully satisfied
Part #: BAK-448121 Posted on
Was this review helpful?
5.0
- 2017 GMC Sierra 2500 (Wautoma, WI)
Part #: BAK-448121 Posted on
Was this review helpful?
5.0
- 2015 Chevy Silverado 2500 (Ball Ground, GA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: BAK-448121 Posted on
Was this review helpful?
5.0
- 2017 Chevy Silverado 1500 (SAN JOSE, CA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: BAK-448121 Posted on
Was this review helpful?
5.0
- 2017 Chevy Silverado 1500 (Mantua, OH)
Appearance
Price / Value
Ease of Installation
Quality
I love the appearance and protecting what is in my bed.

my only issue is i am having problems with it leaking water
Part #: BAK-448121 Posted on
Was this review helpful?
5.0
- 2018 GMC Sierra 2500 (Thibodaux, LA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: BAK-448121 Posted on
Was this review helpful?
5.0
- 2016 GMC Sierra 2500 (MODESTO, CA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: BAK-448121 Posted on
Was this review helpful?
5.0
- Chevy Silverado 2500 (HEBRON, KY)
Part #: BAK-448121 Posted on
Was this review helpful?
5.0
- Chevy Silverado 1500 (STATE COLLEGE, PA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: BAK-448121 Posted on
Was this review helpful?
4.0
- 2017 GMC Sierra 2500 (White Lake, MI)
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Warranty

3 Year Warranty

The BAK MX4 cover is backed by a 3 year warranty that protects against defects in material and craftsmanship.


Installation

Easily install the BAK MX4 tonneau cover in roughly 20 to 30 minutes with basic hand tools. Need help? Give us a call at 877-216-5446.

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Watch This Video
How to Install BAKFlip MX4 Tonneau Cover on a 2012 Ram 1500
(06:42)
Watch This Video
How to Install BAKFlip MX4 Tonneau Cover on a Ford F-150
(07:05)
Watch This Video
BAKFlip MX4 Tonneau Cover Unboxing
(02:10)
Watch This Video
How to Install BAKFlip MX4 Tonneau Cover
(09:50)