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  1. Tonneau Cover
  2. BAK Industries
  3. Fold-Up - Hard
  4. Rack Compatible
  5. Flush Profile - Inside Bed Rails
  6. Aluminum
THIS ITEM IS NOT A FIT FOR
2018 Chevrolet Silverado 1500
BAK Industries

BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish

Part Number: BAK48331
144 Reviews | 12 Questions
In Stock
$1,249.99
Retail:$1,481.92
You Save: $231.93
 Tonneau Cover
Not Confirmed to Fit

2018 Chevrolet Silverado 1500

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Product Images

bak industries tonneau cover fold-up - hard aluminum bakflip mx4 folding matte finish
bak industries tonneau cover fold-up - hard tailgate lock bakflip mx4 folding aluminum matte finish
bak industries tonneau cover fold-up - hard aluminum
bak industries tonneau cover aluminum bak48331
bak industries tonneau cover tailgate lock
bak industries tonneau cover aluminum bak48331
bak industries tonneau cover fold-up - hard
bak industries tonneau cover tailgate lock bak48331
bak industries tonneau cover tailgate lock aluminum bak48331
bak industries tonneau cover fold-up - hard tailgate lock bakflip mx4 folding aluminum matte finish
bak industries tonneau cover fold-up - hard bakflip mx4 folding aluminum matte finish
bak industries tonneau cover fold-up - hard aluminum bakflip mx4 folding matte finish
bak industries tonneau cover fold-up - hard aluminum bakflip mx4 folding matte finish
bak industries tonneau cover fold-up - hard tailgate lock bak48331
bak industries tonneau cover fold-up - hard tailgate lock bak48331
bak industries tonneau cover tailgate lock
bak industries tonneau cover tailgate lock bak48331
bak industries tonneau cover tailgate lock bak48331

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In Use/Installed

0 tonneau cover bak industries fold-up - hard bakflip mx4 folding aluminum matte finish
2017 ford f 350 super duty tonneau cover bak industries tailgate lock aluminum bak48331
2017 ford f 350 super duty tonneau cover bak industries tailgate lock bak48331
2017 ford f 350 super duty tonneau cover bak industries fold-up - hard tailgate lock bakflip mx4 folding aluminum matte finish
0 tonneau cover bak industries fold-up - hard on a vehicle
2017 ford f 350 super duty tonneau cover bak industries fold-up - hard aluminum bakflip mx4 folding matte finish
2017 ford f 350 super duty tonneau cover bak industries fold-up - hard on a vehicle
0 tonneau cover bak industries aluminum bak48331
0 tonneau cover bak industries tailgate lock on a vehicle
2017 ford f 350 super duty tonneau cover bak industries aluminum bak48331
2017 ford f 350 super duty tonneau cover bak industries fold-up - hard aluminum on a vehicle
2017 ford f 350 super duty tonneau cover bak industries tailgate lock on a vehicle
0 tonneau cover bak industries fold-up - hard aluminum on a vehicle
0 tonneau cover bak industries fold-up - hard tailgate lock bakflip mx4 folding aluminum matte finish
0 tonneau cover bak industries tailgate lock bak48331

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Customer Photos

BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish customer photo

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Videos

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Get style and versatility with this heavy-duty, all-aluminum tonneau. Quad-fold cover sits inside your vehicle's bed rails and secures upright for unrestricted bed access. Tailgate opens and closes with cover up or down. Matte black finish. Great Prices for the best tonneau cover from BAK Industries. BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish part number BAK48331 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (144)
  • Q & A (0)
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BAK Industries Tonneau Cover - BAK48331

  • Fold-Up - Hard
  • Rack Compatible
  • Flush Profile - Inside Bed Rails
  • BAK Industries
  • Aluminum
  • Matte
  • Tailgate Lock
  • Opens at Tailgate

Get style and versatility with this heavy-duty, all-aluminum tonneau. Quad-fold cover sits inside your vehicle's bed rails and secures upright for unrestricted bed access. Tailgate opens and closes with cover up or down. Matte black finish.


Features:

  • Custom-fit tonneau cover protects your cargo and your vehicle's bed from the elements
    • Aerodynamic style reduces wind drag, improving gas mileage
  • Quad-fold design allows for partial or full truck bed access in seconds without having to remove cover
    • Prop rods let you secure folded cover in upright position so you can drive with truck bed completely open
    • Integrated buckle system lets you secure the cover in the folded, flipped up, or closed position
  • Low-profile cover sits inside your truck bed rails
    • Compatible with stake-pocket-mounted accessories and raised side rails
  • Automatically latching panels create a secure truck bed when tailgate is closed and locked
    • Rear seal lets you open and close tailgate with cover open or closed
  • Matte black rubber seals and built-in drainage system help to keep water out of bed
  • 1/2" Thick, rustproof aluminum panels are sturdy and durable
    • Premium density foam core adds strength
    • Cover rated to hold up to 400 lbs of evenly distributed weight
  • Matte black finish is resistant to scratches, scuffs, and UV rays
  • Aircraft-grade, rustproof aluminum rails with black powder coat finish create base for tonneau
  • Easy, no-drill installation
    • Frame rails clamp to the inside of your truck bed side rails
    • Included bolts secure front hinge rail to frame rails
  • Compatible with BakBox2 (sold separately)
  • Made in the USA
  • 5-Year warranty


448331 BAK Industries BAK Flip MX4 Hard Folding Truck Bed Cover

Replaces 48331

Installation Details BAK48331 Installation instructions

This Product Fits The Following Vehicles



California residents: click here




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Customer Satisfaction Score:

Ratings & Reviews

4.6

144 reviews
5 Stars
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4 Stars
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3 Stars
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2 Stars
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1 Star
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Get style and versatility with this heavy-duty, all-aluminum tonneau. Quad-fold cover sits inside your vehicle's bed rails and secures upright for unrestricted bed access. Tailgate opens and closes with cover up or down. Matte black finish.

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See what our Experts say about this BAK Industries Tonneau Cover

Do you have a question about this Tonneau Cover?
  • Can I Fold Three of the Panels on the MX4 Hard Tonneau Cover BAK48331 on a 2023 F-350 When Towing?
    Hey Marshall! You 100% can fold the MX4 Hard Tonneau Cover item # BAK48331 three times and have it resting on the fourth panel. The cover has built in straps and clips to secure the folded up panels so they won't flop around in this orientation. The MX4 Hard Tonneau Cover item # BAK48331 is exactly what you'll need for an 8' bed 2023 Ford F-350. It comes with everything you need to get it installed. I have attached a couple of pictures below along with an installation video so you can...
    view full answer...
  • Stake Pocket Compatible Ladder Racks for 2019 F-350 With Tonneau
    The Thule TracRac Contractor Truck Bed Ladder Rack - Side Mount - Steel - 250 lbs # TH14750 gets the support it needs from the floor which is why there isn't a similar rack compatible with stake pocket use. You can get a full ladder rack that will use the stake pocket and utilize the full side to side bracing for support like the Adarac # A70450. IF you let me know your specific vehicle, I can give you a compatible rack option. To not interfere with a folding cover you would need to...
    view full answer...
  • Will The BAK Revolver X4s for a 2023 Ford F-350 8' Long Bed Cover The Front Portion Of Bed Only?
    The BAK Revolver X4s Hard Tonneau Cover # BAK49ZR which fits your 2023 Ford F-350 8' long bed has to be in either the fully rolled up or fully covered position. If you go with a cover like the BAKFlip MX4 Hard Tonneau Cover # BAK48331 you will be able to have the panels folded up on the front of the bed partially covering your bed.
    view full answer...
  • Best Type of Tonneau Cover for 2021 Ford F-350 Long Bed with Gooseneck Hitch and OEM Camera
    For a tonneau cover to use with a gooseneck trailer the BAKFlip MX4 won't be your best option as it's either going to fold up against the back glass and block total view or it's going to fold down on the last panel and be thick enough that it would cause interference issues with the overhang of your trailer. In the picture I attached you can see it would block the camera as well. A better option for your long bed 2021 Ford F-350 would be a retractable tonneau cover that stores down in...
    view full answer...
    Image 1 for
  • What Ladder Rack will Work with the BAKFlip MX4 Hard Tonneau Cover on a 2018 Ford F-350
    I do have options for you but the Thule TracRac SR Sliding Truck Bed Ladder Rack part # TH43003XT-000 won't work with the BAKFlip MX4 Hard Tonneau Cover part # BAK48331 on your 2018 Ford F-350. The reason for this is because the uprights on the ladder rack are angled inward and the folding slats on the MX4 would come into contact with the uprights when lifted. You may be able to open the first slat if you moved the rear upright all of the way forward but this is surely not ideal. Instead,...
    view full answer...
  • Will BAKBox 2 Work with RetraxPRO MX Tonneau Cover for 2017 Ford F-350 Long Bed
    The BAKBox 2 Collapsible Truck Bed Toolbox # BAKBX92333 is designed to work with rails on the BAK Revolver X2/X4s, Roll-X (discontinued), and BAKFlip tonneau covers. Although the BAKBox 2 has not been tested for compatibility with the RetraxPRO MX Hard Tonneau Cover for your 2017 Ford F-350 long bed, part # RT80384, from what I can see, it's highly unlikely that they would work together. Below are the correct part numbers for the available tonneau cover options that do work with the #...
    view full answer...
    Image 1 for
  • Front Panel and Folding Panel Length of Bak Tonneau BAK48331 For 2022 Ford F-250 Long Bed
    The front header panel of the Bak tonneau cover part # BAK48331 that fits your 2022 Ford F-250 long bed is about 6 inches long and each of the folding sections is about 22-1/2 inches long.
    view full answer...
  • Will Extang EnCore Fit with 5th Wheel Trailer on a 2018 Ford F-350 Long Bed
    You should be able to install a 5th wheel hitch and couple up to your 5th wheel trailer with the Extang EnCore Hard Tonneau Cover # EX62430 installed and in the folded up position on your 2018 Ford F-350 Super Duty but it will definitely reduce your turning clearance. I have some similar recommendations for you though. I recommend going with the BAK Revolver X4s Hard Tonneau Cover # BAK49ZR instead. This combines the sleek look of a soft tonneau with the durability of a hard tonneau due...
    view full answer...
  • Could BakFlip Tonneau Cover Close Over B and W Companion Fifth Wheel Hitch in 2019 Ford F-250
    We do install fifth wheel hitches and rail kits here at our location in Wentzville, MO and it is possible a BakFlip Tonneau can fit over a fifth wheel hitch but the hitch would need to have a handle that does not point up like the B and W Companion part # BWRVK3500. To install this in your 2019 Ford F-250 long bed you'd need the rail kit part # BWGNRK1116. I attached an install video for this for you to check out as well. In case you didn't have the tonneau already the correct part number...
    view full answer...
  • Recommended Retractable Tonneau Cover And Storage Box For A 2022 Ford F-450 Super Duty
    The UWS Truck Bed Chest - Secure Lock Under Tonneau Series # UWS08297 has a few different tonneau covers in the product pictures. One being a hard roll up cover like the BAK Industries # BAK39331 and one hard folding cover like the BAK Industries # BAK48331. As for the retractable cover, the pictures are a little too generic to determine the exact model. For a hard retractable tonneau cover for your 2022 Ford F-450 Super Duty I recommend the RetraxPRO XR Hard Tonneau Cover - Retractable...
    view full answer...
  • What Ladder Rack Will Work with the BAKFlip MX4 Tonneau Cover on a 2020 Ford F-350 Super Duty
    We do have a ladder rack solution for your 2020 Ford F-350 Super Duty with the BAKFlip MX4, part # BAK48330 for short bed or # BAK48331 for long bed, but you are correct that the vast majority out there use a clamping system which makes them incompatible with most tonneau covers. For your application you can use the Adarac Pro Series Ladder Rack, part # A4000952 for short bed or # A4000958 for long bed, because it uses an anchoring system with the stake pockets instead of a clamping system...
    view full answer...
  • Compatible Ladder Rack and Tonneau Cover for 2018 Ford F-350 Super Duty Long-Bed
    Often tonneau covers and ladder racks interfere with each other when they require common mounting points on the truck bed rails. But there is a compatible combination that we know from experience will work well on your long-bed F-350. BAK Revolver tonneau cover # BAK39331 mounts inside the bed rails which allows use of the TracRac SR sliding ladder rack which mount on top of the bed rails. Several versions of the SR are shown on the linked page. For your long-bed you can use either the...
    view full answer...

Do you have a question about this Tonneau Cover?


Info for this part was:

Employee Tyler C
Edited by:
Tyler C
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Dustin K
Video Edited:
Dustin K
Employee Zach D
Video Edited:
Zach D
Employee Hayden R
Test Fit:
Hayden R
Employee Wilson B
Updated by:
Wilson B
Employee Jason W
Updated by:
Jason W
Employee Noah M
Updated by:
Noah M
Employee Ronnie R
Written by:
Ronnie R

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