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  1. Tonneau Covers
  2. BAK Industries
  3. Fold-Up - Hard
  4. Flush Profile - Inside Bed Rails
  5. Rack Compatible
  6. Aluminum
BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish

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

Item # BAK48203
Our Price: $1,199.99
Tonneau Covers

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Shipping Weight: 78 lbs
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Quad-panel matte black tonneau cover folds up to provide two-thirds or full truck bed access. Prop rods let you drive with cover open without blocking your brake light. Cover sits 1-1/4" above bed rails. Shuts with the tailgate open or closed. Great Prices for the best tonneau covers from BAK Industries. BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish part number BAK48203 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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BAK Industries Tonneau Covers - BAK48203

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

Quad-panel matte black tonneau cover folds up to provide two-thirds or full truck bed access. Prop rods let you drive with cover open without blocking your brake light. Cover sits 1-1/4" above bed rails. Shuts with the tailgate open or closed.


Features:

  • Custom-fit tonneau cover protects your cargo and your vehicle's bed from the elements
    • Aerodynamic style reduces wind drag, improving gas mileage
  • Folding 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


BAK Industries combines the strength and durability of aluminum panels with the scratch and UV resistance of a matte finish for its BAKFlip MX4 tonneau cover. This heavy-duty, folding cover keeps your truck bed and cargo dry, cuts down on wind drag to improve your fuel mileage, and allows for full truck bed access without having to be removed. And because this tonneau mounts inside of your truck bed side rails, you get a low-profile look and you can still use your stake pockets to mount accessories.


Convenient Folding Design

BAKFlip MX4 Cover Operation

One of the BAKFlip MX4's most attractive features is that it can be folded all the way up and remain securely positioned on your truck while you are driving, even at highway speeds. This means that you can haul large cargo without having to completely remove the tonneau. Simply unlatch each of the panels, fold them one on top of the other, and flip them back so that they sit upright against the cab of your truck.


BAKFlip MX4 Tonneau Cover Prop Rod

Then flip up the prop rods that are attached to the tonneau's frame rails, slide the brackets on the cover down over the rods, and tighten the knobs on the brackets to secure the upright cover in place. Rubber bumpers on the cover prevent it from marking your cab or scratching the glass of your rear windshield. When the tonneau is in this position, your vehicle's third brake light will remain visible.


BAKFlip MX4 buckles

If you want to maintain visibility out of your rear window, you can secure the folded panels of the cover without propping them up against the cab using the tie-down straps and buckles included with the cover. Just fold up the first 2 panels of the cover, leaving the panel closest to the cab latched in place. Make sure both buckle clips are inserted into the buckle ends on the front header panel of the cover and adjust the straps to ensure the cover is secure.


Simple, One-Person Operation

BAKFlip MX4 Tonneau Cover Operation Panel Latches

The MX4 is easy to operate. To unlatch the rear panel, drop your tailgate and pull either of the 2 release cords located along the bottom corners of the panel's housing. Either cord will release both of the integrated latches so that you can lift up the panel. To unlatch the second and third panels, pull the easy-to-reach release cords built into the corners of those panels.


To close the cover, simply fold the panels back down. Each panel will securely latch back into place under its own weight. When your tailgate is closed and locked, no one will be able to get in to open the cover, thus safeguarding your truck bed and its contents.


Heavy-Duty Construction

The BAKFlip MX4's rugged construction makes it a great match for your truck, no matter what you do while at work or play. The cover is strong enough to hold up to 400 lbs of evenly distributed weight when it's folded down, so it can support your weight if you sit or stand on it.


BAKFlip MX4 Tonneau Cover Panels Close-Up

Although it appears to be one piece, the cover is made up of aluminum panels that are lightweight but strong. The panels have been enhanced with premium density foam for added strength.


The MX4 is covered with a black matte finish that provides protection from the elements. It resists scratches, scuffs, and harmful UV rays.


Easy, No-Drill Installation

BAKFlip MX4 Tonneau Cover Installation

Installing the MX4 is simple. All you need is a wrench, and you don't have to do any drilling. The tonneau's frame rails clamp to the inside of your truck bed side rails to create a base for the cover. The included bolts secure the front hinge rail to the frame rails at the cab. Slotted brackets on the hinge rail allow the bolts to shift in case you need to adjust the cover to achieve a snug fit.



448203 BAK Industries BAK Flip MX4 Hard Folding Truck Bed Cover

Replaces 48203

Installation Details BAK48203 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish - BAK48203

Average Customer Rating:  4.6 out of 5 stars   (102 Customer Reviews)

Quad-panel matte black tonneau cover folds up to provide two-thirds or full truck bed access. Prop rods let you drive with cover open without blocking your brake light. Cover sits 1-1/4" above bed rails. Shuts with the tailgate open or closed.

by:
2017 Dodge Ram Pickup

I installed the BAKFlip MX4 in my RAM 2500 Crewcab has the 6' 1/2 short bed, drived 300 miles now. good product, open and close the tailgate without lifting up the cover



by:

I really love the bakFlip cover. It locks up all my stuff when we are on the road. I really like the looks too.



by:

I am very happy with my BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish - BAK48203.
Really.
And the service I received in its regard was top-notch. It did arrive with a non-functioning blemish but I was compensated by the company, immediately. Also, a part broke shortly after I installed it and again, the company stepped up.
As for the tonneau cover itself:
•it folds open and closed easily as advertised,
•I can stand on it if needed,
•it keeps out the rain (I've run it through car washes too, and the contents of the bed remain dry,
•it was easy to install
•I love that concern for locking the bed by closing before/after tailgate is not an issue.



by:

The BAKFlip MX4 was easy to install, and does what I need. I like the new style where I can close my tailgate without having to lift it.



by:

it looks nice, functions well, but leaks like a sprinkler.



by:



by: 08/23/2022



by:

I have owned this cover for over a year and it has been excellent. It keeps the bed fairly dry as expected and I have had no mechanical issues with it as it still performs like new. I would say the only improvement I would suggest is better foam weather striping for the front of the bed as the original never stuck to the spray in liner very well and eventually came lose and then I just swapped with some similar weather striping I bought locally.



by:

The cover functions ok. The tailgate leaks quite a bit. The manufactured edges that where cut were sharp and not painted or treated. The weather strip along the edges has already discolored/faded. Disappointed in the fading and less than ideal sharp edges. Somewhat expected leaks, but not this much. Average at best rating, especially for the price.



by:

I have been using this cover for almost a year now, and am very pleased with it. It looks and fits great, and it is secure and keeps most of the bed dry in the rain. A couple of rubber trip bits have needed some improved securing, and I used a little RTV so it was easy. I drove it across the country round trip last summer and it was perfect. I would recommend this cover for a great-looking and pretty secure cover. Finally, it is easy to fold forward when it is time to haul loads taller than the bed rails.



by:

Overall, I am very pleased with my BAKFlip MX4. It has held up well after 1 year. It works well and looks good. It matches my matte black accessories and trim. It was fairly easy to assemble but I did have some tight fitment issues near the cab where the cover connects to the rail. I really like the security of the hardtop and access through the tailgate. Water is generally kept out, but sometimes there are water drips near the tailgate depending on the angle parked. So this cover keeps the bed *mostly* dry.
etrailer was very fast to deliver my cover, and it came in good condition.



by:

Well made cover. A lot sturdier than I thought it would. Its not full proof so water does get in the bed but it's minimal. The cover partially blocked my tool box which sit in the bed, so I removed the tool box cover for easy access.



by:

So after a year I am still loving this bed cover. Had the fiberglass version for my 2013 F-150 and loved it as well, that's why I purchased this one for my 2019 Super Duty, it was also the first accessory I purchased for it because I was so used to my other one and knew I couldn't live without it. I never installed the drain tubes on either covers and still haven't had water get it my bed. Also the folks at etrailer are always awesome! Thanks again!



by:

Easy to install. Doesn't leak. Easy to clean, and seems to have improved my fuel mileage a bit. I am happy and would highly recommend this cover. Fits my 2018 Silverado perfectly.



by:

I am a huge fan of the BAKFlip. The installation was pretty straight forward and easy. Anybody with moderate mechanical ability can install. I think it took less than 2 hours. I live in a heavy snow area and had more than 24” of snow on it at one point and the product performed flawlessly.



by:

the bedcover finally came in.
Few pictures
of it installed.



by:

Cover went on easy and looks good on the truck. We put it on our 2020 Colorado which we tow with our motor home. It works great for extra secured storage. The only problem was with the rubber bumpers on the bottom and the two on top , fell off as soon as I opened the box. Not a big deal just had to use a little gorilla glue on them and all has been good.



by:

This tonneau cover can be installed by one person. It works great. It is water proof in the rain.



by:

This is the third MX4 that I have owned. This one is on Ford’s Maverick. The first two fit well but not perfect. I don’t really know if the slight issues were the fault of the truck or the cover. This cover is the best yet. Absolutely no leaks!! The fit to the tailgate is very uniform!! When ever I need a cover, I don’t even look at te competition. These are great covers.



by:

After a year of using the cover I found that there are a few things that could be improved and you can do some of these yourself.
The knobs for the cover that actually hold it into the bed-vibrate loose. I added my own lock washers. The poles that you use to hold the cover up when the cover is raised up against the back window-they also vibrate loose-so often that I just removed them and keep them under my seat. The little u-clip pole holders for the poles when not in use-they are too weak-often letting the poles jump out or fall out during normal road driving.
The cover itself is not waterproof --it sheds water away mostly however enough gets into the bed that you can not trust your items to be dry. Bag important stuff to keep it dry.
The rear weather seal slides back and forth too easily--sometimes working itself out about 2 inches until you see it and slide it back into place--i addenda small amount of silicone to stop this from moving.
The cover is strong, looks good and is mostly what I was looking for. Unfortunately I would not buy this again-even more because you have to relocate the bed accessory rails-which then limits the items you can buy for your truck because they are designed for the rails to be in the factory positions.
My next cover will be a roll up so that it allows visibility out of the back window. When this cover is flipped up to its final position it completely blocks the rear window. When I was looking at covers-my thought was well its the coolest looking cover and I can deal with not seeing out the back window--well that has changed. It is not practical. The price is high and there are many other options out there that are. My soft roll up tonneau cover was great-waterproof and I could have bought 6 of them for this price. If one was damaged it would have been better to just throw it away and order a replacement. Sorry guys-look elsewhere for a better cover.



by:

Solid performance. Only issue is with the glue holding the pads is failing



by:

Love the MX4 ...Took a little longer to install but looks great...



by:

I love the cover, very sturdy and has held up very nice for 1 year. The one issue is, I have a long bed Ram and when I fold it up against the cab, it covers the camera for the bed. This is a design flaw and if you use the bed camera when you have a load in the bed and the cover is folded all the way up, you can't use it.



by:

I've had the cover for one year now and the cover has gone through the worst California winter weather for the last 3o years. It kept my stuff 99% dry! It's not 100% leakproof and that was expected but given the conditions esp during rainy season, it has performed above expectations.



by:

It's a straight forward assembly but photos of the assembly steps would be better than the illustrations.
NOTE: This model allows you to open and close the tailgate without lifting up the cover. The other models require you to lift the cover so the tailgate won't damage it.


25
102
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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 Jacob T
Video Edited:
Jacob T
Employee Zach D
Video Edited:
Zach D
Employee Colin H
Test Fit:
Colin H
Employee Aidan B
Test Fit:
Aidan B
Employee Dustin K
Video by:
Dustin K
Employee Jonathan Y
Video by:
Jonathan Y
Employee John S
Video by:
John S
Employee Hayden R
Installed by:
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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