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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 # BAK448227
Our Price: $1,199.99
Tonneau Covers

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Shipping Weight: 71 lbs
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Get style and versatility with this heavy-duty, all-aluminum tonneau. Tri-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 covers from BAK Industries. BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish part number BAK448227 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (102)
  • Q & A (0)
  • Photos

BAK Industries Tonneau Covers - BAK448227

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

Get style and versatility with this heavy-duty, all-aluminum tonneau. Tri-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
  • Tri-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


448227 BAK Industries BAK Flip MX4 Hard Folding Truck Bed Cover

Installation Details BAK448227 Installation instructions

This Product Fits The Following Vehicles

  • 2019 - 2025 Ram 1500 5-1/2 Foot Bed - without RamBox


California residents: click here



Customer Reviews

BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish - BAK448227

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

Get style and versatility with this heavy-duty, all-aluminum tonneau. Tri-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.

by:

I've had it for a year. Easy install, but more sturdy then you would think. Only complaint is that one of the plastic buckles broke. Otherwise, great product, as advertised



by:



by:



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:

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:

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:

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:

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.



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:

This is the second BAKFlip i've owned they vare great,going thru etrailer is an easy process


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Show More Reviews

See what our Experts say about this BAK Industries Tonneau Covers

  • Will The Gator EFX Hard Folding Tonneau Cover Work With Adarac Ladder Rack On 2019 Ram 1500?
    It looks like you are referring to the Adarac Aluminum Series Custom Truck Bed Ladder Rack - Aluminum - 500 lbs # A76FR which is confirmed to fit your 2019 Ram 1500 with 6-1/2' bed. This ladder rack is designed to work in combination with inside-the-rail tonneau bed convers. The Gator EFX should work as long as it is mounted inside-the-rails on your truck bed. It looks like the Gator EFX mounts inside the rails similar to the BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish...
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  • What Ladder Rack will Work with My BAKFlip MX4 Tonneau Cover on My 2019 RAM 1500?
    For a compatible ladder rack that works with the BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish # BAK448227 (for the 5-1/2 foot bed without Rambox) and # BAK448223 (for the 6-1/2 foot bed without Rambox), I recommend the Adarac Custom Truck Bed Ladder Rack - Steel with Aluminum Crossbars - 500 lbs # A70450 (for 5-1/2 foot beds without Rambox) or the # A70480 (for 6-12 foot bed without Rambox). Since the BAKFlip MX4 attaches inside of your bed's rails, the Adarac Custom...
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  • Will TracRac SR Ladder Rack Fit with BAKFlip MX4 Cover on a 2021 Ram 1500 5-1/2 Foot Bed
    The Thule TracRac SR # TH57RV will fit with both the Cantilever Extension # TH24002XT and the BAKFlip MX4 Hard Tonneau Cover # BAK448227 for your 2021 Ram 1500 5-1/2' bed (without the RamBox). This is a great combination and we have confirmed that the cover will fit great with the ladder rack without any issues. Please note that the MX4 cover won't fit if you have the Multi-Function Tailgate. When it comes to a J-Style kayak carrier you can use the Thule Hull-A-Port Aero Kayak Carrier...
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  • Recommended Ladder Rack for a 2023 Ram 1500 w/ a MX4 Tonneau Cover and a 5-1/2 Foot Bed
    Yes, there is. Since your Ram 1500 has the BAKFlip MX4 item # BAK448227 you will want the TruXedo Elevate Truck Bed Rack System item # TX96NV. I checked with our vendor and this ladder rack is confirmed to work with the MX4 covers. It mounts to the top of your bed rails instead of inside like most ladder racks and where your cover mounts. The TruXedo Elevate Truck Bed Rack System item # TX96NV has a 500 lbs capacity. The bars are 3-3/4" wide x 1-1/2" tall. The uprights are adjustable...
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  • How To Carry Bike Rack With 2021 Ram 1500 When Towing Travel Trailer
    I have another option for you, but since the BAKFlip MX4 Hard Tonneau Cover # BAK448227 you have on your 2021 Ram 1500 does not have the t-tracks for cross bars there is not a bike rack that will be able to be installed above the bed of your truck. Instead I recommend using the Curt Multipurpose Ball Mount with 2" Receiver for Bike Racks and Cargo Carriers # D210 which will allow you to tow your travel trailer and and carry a bike rack at the same time. The # D210 has maximum tongue weight...
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  • Which Ladder Rack Is Compatible With BAKFlip Mx4 Tonneau Cover On 2021 RAM 1500 Short Bed?
    There is a version of the Rapid Switch Ladder Rack that is compatible with your 2021 Ram 1500 short bed with BAKFlip MX4 Hard Tonneau Cover - Folding # BAK448227, but the one you were looking at is not it. You will want to go with Rapid Switch Systems Pro Sport Ladder Rack - BAKFlip Tonneau Covers - Full-Size Short Bed - 500 lbs # RS69FR which is compatible with your setup.
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  • Recommended Ladder Rack and Tonneau Cover for a 2019 Ram 1500 5-1/2 Foot Bed
    In order to mount both a ladder rack and tonneau cover together on a 2019 Ram 1500 you will be limited in your selection due to the general mounting location of both components. However, I have an excellent option for you in the Adarac Pro Series Custom Truck Bed Ladder Rack part # A4000965 paired with the BAKFlip MX4 Hard Tonneau Cover part # BAK448227. The Adarac Pro Series Ladder Rack mounts in the stake pocket and has vertical uprights whereas the BAKFlip Tonneau Cover mounts inside...
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  • Will The Thule TracRac Base Rails Work With A 2020 Ram 1500 Short Bed And A BAKFlip Tonneau Cover?
    I do have a solution for you, but the Base Rails for Thule TracRac SR Sliding Truck Bed Ladder Racks # TH21782 will not work with your 2020 Ram 1500 short bed. Instead, I recommend going with the Adarac Pro Series Custom Truck Bed Ladder Rack # A4000965 which will work with your BAKFlip tonneau cover, like the BAKFlip MX4 Hard Tonneau Cover # BAK448227. This rack is made in the USA, has a maximum capacity of 500-lbs, and also has a tie-down kit # A4000882 so you can quickly and easily...
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  • Which Adarac Truck Ladder Rack is Compatible with the BAK Bakflip MX4
    I do have a solution that will allow you to use the BAKFlip MX4 on your 2020 Ram 1500, but the Adarac Custom Truck Ladder Rack # A70450 doesn't allow a hard roll cover to properly roll up because the arms are slanted inwards over the truck bed. Instead of the Adarac Custom, I recommend using the Adarac Pro Series # A4000965, since it is confirmed to work with a BAKFlip MX4. For the tonneau cover, the BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish # BAK448227 is the...
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  • Ladder Rack And Tonneau Cover Options For A 2023 Ram 1500 5.5' Bed
    The Thule TracRac SR Sliding Truck Bed Ladder Rack # TH57RV would be a compatible fit for your Ram and for the BAKFlip MX4 Hard Tonneau Cover # BAK448227. It unfortunately only comes with 69-1/2" crossbars, so it's 2-1/2" shorter than you were looking for. Out of the available options that are compatible with the MX4 this is longest crossbar option with the next size being 68". If longer crossbars are a must then you could go with a Yakima OverHaul HD Ladder Rack, which has interchangeable...
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  • Carrying 4 Kayaks on a Adarac Pro Ladder Rack With a 2019 Ram Short Bed and BAKFlip MX4 Tonneau
    You've done your research well. The Adarac Pro Series Custom Truck Bed Ladder Rack # A35WG will fit with the BAKFlip MX4 Hard Tonneau Cover # BAK448227 tonneau cover on your 2019 Ram 1500 and 5-1/2' bed. You will also be able to fit the Rhino-Rack 2 Kayak Carrier w/ Tie-Downs # S512-S512X to the Adarac crossbars using the Crossbar Adapters # KC-FK8
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  • Will 2019 Ram 1500 Ladder Rack Fit With Gator Folding Tonneau Cover
    From what I was seeing it looks like the Gator tonneau cover on your 2019 Ram 1500 mounts on top of your bed rails so if you're wanting a rack for cargo we'll either need to go with a roof rack or go with a different tonneau cover that is compatible with a ladder rack. For a roof rack I recommend the Thule WingBar Evo which uses the following: 60" WingBar Evo Crossbars - # TH711520 Evo Clamp Feet - # TH710501 Fit Kit - # TH145199 Lock Core Kit - # TH450400 For a new tonneau cover and...
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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 Joshua S
Video Edited:
Joshua S
Employee Zach D
Video Edited:
Zach D
Employee Jonathan Y
Video Edited:
Jonathan Y
Employee Chris R
Video by:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M
Employee Ronnie R
Written by:
Ronnie R
Employee Conner L
Test Fit:
Conner L
Employee Aidan B
Test Fit:
Aidan B

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