Buy now, pay later with Learn More
Help
X

Need Help?

We've got you covered!

877-216-5446
Sales & Service Hours
X

Sales & Service Hours

Customer Service

  • Monday to Friday: 8am - 6pm EST
  • Saturday/Sunday: Closed

Sales

  • Monday to Saturday: 8am - midnight EST
  • Sunday: 9am - 10pm EST

BAKFlip MX4 Tonneau Cover

FITS YOUR
Change
Vehicle
2018 GMC Sierra 2500
Please Provide More Info on Your
2018 GMC Sierra 2500
What Do You Drive? We Will Tell You If It Fits.
Product Information
List Price:
$1,033.20 - $1,099.87
Our Price:
$929.88 - $989.88
Made in the USA
Rating:
4.8 (278 reviews)
Product Options
Select Option

    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

    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 Product Review 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
    5.0
    Price / Value
    4.5
    Ease of Installation
    4.8
    Quality
    4.8
    278  Customer Reviews
    5 Star
    222   
    4 Star
    48   
    3 Star
    5   
    2 Star
    1   
    1 Star
    2   
    Order by

    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
    - 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?
    4.0
    - 2017 GMC Sierra 2500 (White Lake, MI)
    Great cover
    Part #: BAK-448121 Posted on
    Was this review helpful?
    5.0
    - 2017 GMC Sierra 2500 (OAK RIDGE, NJ)
    Appearance
    Price / Value
    Ease of Installation
    Quality
    Overall the cover is great! Low profile looks awesome and the 4 fold is great and easy to use. A little pricey. It leaks a little bit on the corners but I hope that will change as the rubber seals set completely with the summer heat coming up.
    Part #: BAK-48121 Posted on
    Was this review helpful?
    4.0
    - 2015 GMC Sierra 2500 (Mill Creek, WV)
    Part #: BAK-48121 Posted on
    Was this review helpful?
    5.0
    - GMC Sierra 2500 (La Grange, KY)
    Appearance
    Price / Value
    Ease of Installation
    Quality
    Part #: BAK-448120 Posted on
    Was this review helpful?
    5.0
    - 2017 Chevy Silverado 1500 (Tinley Park, IL)
    Appearance
    Price / Value
    Ease of Installation
    Quality
    Part #: BAK-448329 Posted on
    Was this review helpful?
    5.0
    - Ford F150 (ALHAMBRA, CA)
    Appearance
    Price / Value
    Ease of Installation
    Quality
    Part #: BAK-448126 Posted on
    Was this review helpful?
    4.0
    - 2018 Chevy Colorado (Warwick, NY)
    Appearance
    Price / Value
    Ease of Installation
    Quality
    This is my first tonneau cover so I don’t really have a basis for comparison. Overall very happy with it. Product was delivered to my door quite fast and was well packaged. I installed it by myself in about 2 hours using a combination of the instructions and the YouTube video. Only difficulty was getting the cover To sit properly in the bed rails near the cab. Had to really force the 2 bolts into the brackets to make them fit Otherwise it was fairly straight forward to install and after just a few positional adjustments seems to fit nicely.

    To my eye , I really prefer the streamlined look of this cover to many of the others I’ve seen. very sharp!
    Page
     Top

    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.

    .
    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)