Very easy to install and
Very easy to install and looks and great
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Fits the same truck
Folds to the cab, drive open
This BAKFlip MX4 is made for the 2015-2020 Ford F-150 with the 6'7" bed. BAK's own brands list the box at 78.9". Re-engineered prop rod clips hold it upright against the cab, and rubber bumpers protect the cab paint. BAK calls the MX4 America's best-selling truck bed cover, and the Gen 3 version adds re-engineered locks and a longer dual-action tailgate seal. Revised EPDM perimeter seals and tight-fit clamps help keep weather out, and drain tubes carry off water that reaches the rails. Fitting it is straightforward: it clamps to the bed rails with no drilling, and BAK calls it a Level 1 job of 30 minutes or less. BAK backs it with a 5-year limited warranty.
| Years | Model | Bed | Notes |
|---|---|---|---|
| 2015-2020 | F-150 | 6'7" (78.9") | — |
Check your bed: measure along the bed rail from the bulkhead to the inside of the closed tailgate. This part is for the 6'7" bed on the 2015-2020 Ford F-150. BAK's own brands list this box at 78.9" long.
Not for: the 8' bed (BAKFlip MX4 448328), the 5'7" bed (BAKFlip MX4 448329). 2004-2014 trucks with the same bed take BAKFlip MX4 448307. 2021-2027 trucks with the same bed take BAKFlip MX4 448337.
BAK makes hard tonneau covers. BAK bills itself as "America's #1 truck bed cover."
The range splits into BAKFlip hard folding covers (MX4, MX4 EZ-Lift, MX4 TS, G2, F1 and Fibermax) and Revolver hard roll-ups (X2, X4s and X4 TS). The MX4 is the aluminum-panel BAKFlip that BAK calls America's best-selling truck bed cover; the MX4 TS adds T-slot rails and the MX4 EZ-Lift adds a lift-assist system.
Authorized BAK dealer. Prestige Truck is an authorized BAK dealer, so what we sell is new and genuine BAK. BAK's warranty "is nontransferable and applies to the original purchaser of the BAK product only," and BAK requires warranty registration on file or proof of original purchase (a detailed, dated receipt) for warranty service. Your Prestige Truck order receipt is that proof.
Yes, if it has the 6'7" bed. Measured along the floor, that box is about 78.9". Measure along the bed rail from the bulkhead to the closed tailgate, and note it is not for the 8' bed (BAKFlip MX4 448328) or the 5'7" bed (BAKFlip MX4 448329). If you are unsure, send us your VIN and we will confirm.
This part covers the 2015-2020 Ford F-150. 2004-2014 trucks with the same bed take BAKFlip MX4 448307. 2021-2027 trucks with the same bed take BAKFlip MX4 448337. Go by your truck's model year, or send us your VIN.
BAK lists stronger panels (high-density polymer cores, 22% stronger than the original MX4), re-engineered lock parts that resist forced entry better than the Gen 2, revised EPDM perimeter seals and tight-fit clamps, a dual-action tailgate seal 13% longer than before, re-engineered prop rod clips, and a click-in design that it says cuts install time by 12%.
It is built to: edge-to-edge seals and tight-fit clamps close the gap to the bed rails, and drain tubes carry off water that reaches the rails. BAK's own install sheet says the cover is not airtight, so plan on weather-resistant rather than sealed. Clear snow and ice off before you open it; that is a warranty condition too.
BAK rates the closed cover at 400 lb, evenly distributed. BAK's sheet also says not to drive with objects on top of the cover or tie cargo to it.
Yes. Fold it toward the cab and attach the straps to the buckles at the bulkhead, pulled snug, and you can drive with the bed open. The cover must be secured at all points while the truck is moving; that is a condition of the warranty.
Here's the short version. Follow BAK's install sheet (below) for your truck's exact clamp positions and settings.
Stuck on a step?
| Brand | BAK |
|---|---|
| Part Number | 448327 |
| Cover Type | Hard folding |
| Generation | Gen 3 (model year 2025) |
| Top Panels | Aluminum over a high-density polymer core |
| Side Rails | Aluminum |
| Finish | Textured matte black |
| Load Capacity | 400 lb, evenly distributed |
| Locking | Patented automatic latching |
| Seals | EPDM perimeter seals; dual-action tailgate seal on most trucks |
| Drainage | Integrated drain system with drain tubes |
| Bed Access | 100% when folded against the cab |
| 3rd Brake Light | Visible in every position |
| Mounting | Clamp-on, no drilling on most trucks |
| Warranty | 5-year limited |
| Fits | 2015-2020 Ford F-150 |
| Bed Length | 6'7" (78.9") |
| UPC | 819275042345 |
4.6 · 5025 reviews
Photos from owners
Very easy to install and looks and great
Great bed cover and easy installation
Excellent bedcover! Very slim and sleek. Very nice fit and finish. Very pleased
Easy to install, excellent fit. No drilling or cutting.
Was a quick install amazing fit and easy to use. Don’t know why I haven’t gotten sooner
Very happy with the design , product quality & ease of installation.
Bought this when we replaced our 2019 F150 with a 22. Our old one did not fit the 22 as well. Bought this one base on ratings and price. It was easy to install and fits our 22 great. It's well constructed and secure.
So far so good, looks very nice on my truck, and is functional. Minor leaks occurred in heavy rain, I guess that is to be expected.
Latch broke in less than a month How do I get support? I have pictures of the latch which pulled out of the cover
I’m happy…
The cover looks great and was easy to install taking about an hour.
Very nice! My MPG increased also when I installed this! Very easy to install by yourself.
This was my second purchase of a BAKFlip cover and I have been pleased with both. Yes, they may be a little more expensive than other tonneau covers, but if you want a quality product that will last many years this is worth the cost. I recently sold my 2015 F-150 with a cover that was over 10 years old and it still looked and worked great. The cover for my new 2026 F-150 is made of lighter material so it is easier to open and close but appears to be just as durable. I'm looking forward to another 10+ years of service of this new cover.
I like everything about this cover, easy to install, looks good and does exactly what I need in a cover. Only problem is it leaks just a little bit in the corners but not real bad
Looks awesome easy install Seals bed well
This cover is very well built! Fit and finish is excellent. A few days ago I got caught on the hwy in a severe thunderstorm with it raining so hard you couldn't see for 30 minuets. I had cardboard under the cover and not a drop of water nowhere.
Great product. Easy installation. Love the low signature it gives on my Super Duty. Very happy with this cover.
Fit perfect, the issue I have is when you are folding and keep open the cover, the air kick back the cover, it is not strong enough to hold, should be better quality for the price I pay, looks good but I was disappointed that did not function as needs to be.
Took about 1.5 hours to install which included a couple of beer breaks :) Make sure to spend extra time alining it properly with the front and the back of the truck bed. this will extremely minimize if not totally prevent minor leeks in the corners. Overall I'm really happy with the look and the function of the cover.
Installed without help in a bout 45 minutes on my 2018 f150. Fits great. Looks great. No water leaks.
Super fast delivery and easy install. I highly recommend it!
Great design but expensive. Adds value
These are great covers. I like having it fold all the way open. It will cover your rear window when it's fully open but, you just need to learn how to use your rearview mirrors.
Easy to mount. Mounts so low you can't see it. Easy to use. Overall, I'm really happy with this purchase. Couldn't really ask for anything else.
Perfect fit for my 2021 Ford F-150. Installation: side rails were a bit finicky to install so I recommend you have another person help you by holding them in place. The brackets take two hands to secure. Once those were in, it was easy to add the cover, line it up and secure it down. Operation: really easy to open and close. Fully open with the bars to hold it in place works well. No secret that it blocks your window, so just use your side mirrors. Water: I only get water when I go through the car wash. Regular use it’s been keeping the bed dry!
I love the look and would love ease of use if it fit properly. Unfortunately the MX4 interferes with the tailgate closing. I have been told by BakFlip support that this is a known issue.
Fit like a glove. Install took only 40 minutes from delivery to finish. Love the looks it adds to the truck.
folding cover
Esay to install. Great fit. Excellent product.
The cover looks beautiful. Install was easy. But near the front of the bed on the right side water has a consistent drip during a med-high rain. If I was to know this leaked this much I would have bought a cheaper alternative. This review does not allow for media but I would post if I could.
Fits well
Excellent service. I was impressed with how quickly the truck bed cover shipped.
Great cover, well built and easy to install. A little on the expensive side but overall well worth it.
Fast shipping, it was here in 2 days, install was easy. The box had several punctures in it when it arrived and a huge shoe foot print, so somewhere along the line the box was really neglected. There were alot of metal shavings left on the cover after it was made, and some good dents in the seals. The install was easy and it works fine. A couple scratches on the top of the cover near the corner where you secure it when it's open. I can't remove or repair the scratches so I'm going to live with them., someone at BAKFlip was really careless and know they scratched it up a bit and sent it along anyway.
The cover is nice but was missing hardware. They did send replacement parts fairly quickly.
The installation went well and is not complicated. Just two slight improvements. One, make the installation instructions more precise and available. The card in the box had a QR code for the Ford F-150. I had to go online to find the instructions for my truck. Second, the bulkhead seal is cheap. Upgrade it with a rubber seal. Other than those two slight suggestions, the cover looks great!
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!
It took me a 30 minutes to install on my 2020 F-150. I have to say it's clean lines truly complements the look of the truck much better than the OE offering. I was able to put the MX4 to test this weekend as I had move a refrigerator. No issues..
The only issue I had was the directions called out for the use of rubber strips along the stop rails, if included in the kit. My kit contained said strips. Getting the side rails on, and tight, without them twisting was impossible with the strips in place. after a couple hours of trying to get one rail on without twisting, I removed the strips. Side rail went on without twisting in about ten minutes. Cover looks and fits great!
Trouble installing so all the latches catch. I wish there was some type of adjustment vertically.
Easy install. The reason I am giving it a 4 star is the corners where the metals were cut are very sharp, I cut myself on it, and the side rails the seals don’t go all the way to the end.
I had an MX 2 installed on my 2017 Tacoma in January 2017. When I recently bought a 2023 Tacoma I wanted the BakFlip for it. The MX 2 is so much easier to install and it aligns with no issues. I had to keep adjusting the rails to improve the fit. The right side of the cover did not close all the way; there was a 1/4 inch gap. Part of the problem was the rubber seal improperly installed at the factory. I managed to peel it back and adjust it as it should have been.
Everything was great, but the box was beat up a little. Upon opening the box, there was a small dent on the inner portion of the cover. Not big enough to return, just big enough to notice.
watched the video, easily installed, quality product
I’ve been wanting the BakFlip MX4 for my 17 F150 for a while and I finally broke down and bought one. It’s everything I thought it’d be. It’s has great quality, durable and can easily be installed within a couple hours by yourself, but an extra set of hands doesn’t hurt.
Searched for about 6 months to find the tonneau cover. I really wanted the security of a hard top without sticking above the bed rails it checked those boxes. I also did not want to drill my truck bed. The install was super simple my wife and I had it on the truck in about a half an hour.
This is my third truck to install bak flip tri fold hard cover. Each one was improved and better than the last. My only issue was a wrong part was packed with mine so I had to call customer service to ship out the correct part. I think I have had this issue on the last two covers. Issue was always resolved in a professional and professional way but it is just an added cost to you and an extra step for the customer. You dont expect this from this price point.
Excellent product. Easy install. My boyfriend loves it.
Very easy to install this cover! Happy to be able to keep items secure! My only regret is not ordering one sooner!
Replaced a soft cover with this. So far its been great. Gear is secure. Easy install.
First box came without hardware. Second box came with everything but was not straight with one side being longer than the other. They kept asking me for pictures and measurements till I had enough and sent it back for a full refund. Will never buy anything from them again. The funny thing is ,this is the second time they asked me to do a review on their junk.
It installed easily, look great, and functions good.
The Ford Maverick factory options are fine but the BAKFlip is heavier duty. The installation was easy and took an hour but I have installed one on my F350 previously. It may take a little longer for someone with no experience installing a bed cover. Instruction are easy to follow. The BAKFlip is popular so there are excellent videos of step by step instruction online. An advantage of the BAKFlip is it is more secure than a regular cover. It’s going to be hard for someone to break into my bed and steal anything.
First, watched the online video instructions for my year mode and make prior to starting. Small item, but 1/8" shims shown in the video were not included with my purchase. Second, both rubber bumpers that support the cover when in the folded position became unattached after 6 weeks without ever having the cover in the folded position. Third, both struts that are used to lock the cover in the folded open position are constantly vibrated from their holders and then hang down getting entangled in what ever cargo is being carried. Just a matter of time before they are broken off.
Installed with ease. Haven’t had product long but I’m already liking the design and quality of the materials and the fit better than my previous tri-fold purchased from Ford.
Love the new design. Light weight and excellent quality and design. Easy to install with minimal tool required and the looks are amazing. Super sleek.
I have purchased the BAKFlip MX-4 for 2 prior pickups and have been very pleased with the appearance, fit, materials, and workmanship. Thank you.
Tonneau cover looks great and was very easy to install. It’s very easy to fold open and gives full access to the whole bed.
This BAKFlip is the best cover Ive had on any of my trucks by far. Easily installed and gives the truck a nice clean look. Dont hesitate buy one today!
My MX4 Bakflip tonneau cover came packed very well. After watching the online video and laying out the recommended tools, the install was fast & easy. This 70 year old had no trouble lifting and installing the tonneau onto the bed. I did place a moving blanket on the edge of the bed to help keep from scratching my brand new vehicle. The MX4 is one good looking cover. It is much lighter than the one on my F150 and it takes minimal effort flip it all the way open.
Got the cover quickly. Install was pretty easy but I did read and watch videos before install. My 11 year old grandson, he did most of the work inside the truck bed, and my son assisted. So you know it was a straight forward install. Love the topper.
I’m very pleased with the fit, finish and ease of installation. A couple of pieces were damaged in shipping and customer service replaced them quickly. The only improvement that I can suggest is a heavier duty box to ship it in.
Very easy install. Fits great and looks good also.
Was initially impressed with the bed cover. Appearance is great, installation was easy. But after a rain, water pools in the middle of the cover and begins to leak in the middle of the bed. Ive had numerous bed covers (roll up/soft trifold/hard trifold) and they all leak and I understand that it is unavoidable. However, other bed covers have leaked towards the cab or at the tailgate. This one leaks right in the middle of the bed. For the price I cannot and would not recommend this cover to friends/family.
Versatile and clean!
The first backflip we received had a divet in the panel. They sent us a new panel that had the corner cover damaged and the screw pulled out. It was for a Long bed truck and it didn’t come with full length solid rails we had to add the extra 2’ which wasn’t easy and was annoying. Since we have been using it for over a month, 4-5 of the protective foam pieces have come loose and fallen off and we have tried to put some back on but they keep falling off. Overall this seems like a very low quality truck bed cover with components that can’t hold up to hardly any use or the outdoor elements. Very disappointed in this product.
Easy installation and very versatile tri-folding Tonneau Cover. Removes easily. Aesthetically appealing. Highly recommend.
Excellent customer service and easy on line ordering. Packaged well and received with no damage. Easy install. Very pleased with look.
In 2015, I bought my first BakFlip and transferred it to my second Ram 1500. Here in 2026, I bought my third Ram and decided to get the new BakFlip design and am glad I did. Very easy to install and it took me less than 30 minutes. I love the finished look - like it's from the Ram factory. I like that the folded panels are really secured in place when driving and won't get whipped in the wind plus it leaves room for maximum cargo space. The upgraded cable system for latching and unlatching is another big plus. They really designed a great product and I recommend it over all the others out there. . . well worth the money!
Great tonneau cover for the money.
Good quality cover with easy step by step instructions.
Love it, easy install, great cover!
Everything I expected it to be. Same as GMs only less $. I rated medium on value because Im cheap :-). Seriously though, it was easy to install. I did it solo in about 45 min. Followed YouTube instructions from a guy that took the time to video his install. Got to love YouTube. Looks sharp. Has performed as expected. Zero issues. If you have a Sierra EV, get this cover.
the cover added nice look to my chevy truck
I just love how it sits on my truck it makes it look very distinguished
This is my 3rd BAKFlip. They fit right, are easy to attach and work great. The best of the best truck bed cover.
Nice product super easy to install but grab a friend its much easier. Product fits the bed nicely. And the lathes made it easy to fold up. If I had one critique I wish the cover on the Cab side was convex to match the shape of the bed on my 25 raptor. Small critique would make it perfect other than that it still gets an A+ from me.
I like the cover especially because it's a hard top. There still is leakage and some parts, like the seal, seem to be fragile. Mines popped off. I have to move it a little to make it lock. If I have to use my whole truck bed, it covers my whole back window. I do like the steak flush look. I like that it easily opens with the pull down. I also like the fact you can close it with the truck bed door open or closed. Overall I like it, but for the price, definitely wish there were some things that were better.
Only took me an hour to install. Great looking.
Ive been wanting a hardtop cover for months but I waiting to sell my camper shell, finally I was able to find the correct match since my truck is eight feet bed. It wasnt an easy task to find the correct one! This one looks great on my truck
While the cover looks good the quality of parts were defective. I had to call for replacement and repair parts twice. The cable to release the lip broke due to poor workmanship. I had to replace the latch myself after only 2 weeks. This is way overpriced for having to fix it myself.
My wife had one of these on her 2010 nissan titan and it was perfect in every way. So when we bought a newer truck (2015 ram 2500) we wanted to get the same cover. Tonneau was shipped quickly, was packed well and had easy instructions. The fitment is perfect and the overall utility is great. I espec6like how it acts as a headache rack when fully up and out of the way. I've had this item for a year now and have had it opened and closed around 30-40 times. The wire for the section closest to the tailgate broke. Inside the latches the wire is looped and crimped on and it slid out of the crimps. So I had to buy new cable and fix it. Works like a charm now. I will say the other stock cables work well and have not broken. Other issue is the clips that hold the seal into the side of the tonneau keep popping out. They pop back in easily but it's definitely annoying and causes the seal to…
I have this cover on a 2021 F250. I work in the construction industry and need to open it often. The corner pieces have fallen off and the coating doesn't hold up to medium use. The seal leak in various places. If this is something you rely on, I would consider other brands.
I love the low profile look of the cover but it leaks in the corners by the cab. I even purchased some silicone putty to fill in the gaps between the bed and the cover, but it still leaks.
I am happy with the product. It works well. My goal was to purchase a more heavy-duty cover, but currently it is not made for the 2026 GMC Sierra AT4 EV. If that ever changes please contact me as I most likely will be interested.
Second fold from rear window needs a latch set. The joint raises and lowers after your speed reaches 70 mph and above. This can lead to water leaks at the joint. Contacted company, but would not fix problem or refund money. They said this is normal function of the cover. This problem is caused by the design of the aerodynamics of the truck with the Cab Air Deflectors. This is different from all other Chevy Trucks.
For the price I paid, I wouldnt buy this cover again. The biggest issue is with the long-bed rails. They come in two pieces, but only include three mounting clips. Because of this, its very difficult to get the rails properly aligned during installation, and they never seem to line up quite right. The adhesive rubber bumpers have already started coming loose after being exposed to warm weather. Lastly, the cover gets extremely hot in direct sunlight. It becomes uncomfortable to touch and makes it painful to open when needed. Overall, Im disappointed. For what this cover costs, I expected better quality and a better-designed product. Now that its installed, I feel stuck with something Im not satisfied with.
The cover went on well but once I installed it, I noticed the clip that holds the strap for locking into place in the folded position, was broken off. I found the broken piece in the packing material. The only real fix would be to send the whole cover back and I needed it for my truck. I guess I should have looked it over more closely when I removed it from the packing.
It's good, but not 100%. The corners on the front have an opening where water can get in, and it's a bit hard to open.
This tonneau cover was even nicer looking than I thought it would be. Super streamlined and matches my Rhino Lining bedliner somehow. The only complaint is that I installed it three weeks ago and the adhesive foam strips are peeling up already. The truck is garage stored and it’s summer so it hasn’t been in the elements yet.
With the longer bed this cover doesn’t allow you to transport with just one fold. Any suggestions. Also, any suggestions on making it less water resistant?
This is the least weather proof cover Ive ever owned, on top of that it rattles on any pot hole or bump. The only thing this cover has going for it is the appearance.
The clamps don't seat well against the metal behind the cap rail plastic. So, they can't hold straight when closing the cover. I contacted support and they said to send a picture and over a week later I've gotten nothing back after additional email. Pretty disappointed that something so simple couldn't be resolved quickly. I have put backing material in place until they figure it out so I can at least use it. The tailgate seal was also not seated correctly so I had to take it off and reseat it. For such an expensive product they really aren't doing the small parts well.
Love everything about the cover except that it’s too short. It barely covers the edge of the bed at the front and just touches the tailgate. Seems about two to three inches shorter than it should be so it doesn’t keep the water out at the tailgate and it’s not very secure for theft.
The foam was glued together and bed cover looks worn and half of the parts are missing . Took it to a place for an install and they told me this is definitely a used item. Wasted a whole day!
very difficult to get to fit. RETURNED. Thank you for no hassle.
Product is flimsy. You can see light escaping through the cracks from the outside. Plenty of water gets inside. Side trims are always falling off rail. Always looks dirty or faded. Side stands don’t hold up box correctly.
I am very unhappy with the fit. It does not allow the tail gate of my 2026 Nissan frontier to properly close. I have to position it further forward on the bed to make it work. I would not recommend this cover or the company.
Damaged bed cover and no help from customer servic
I like the appearance and a parent quality of the product, but it would not work on a 25 Nissan frontier the rear latches would not come down enough to latch so I had to return it. customer Service was very helpful and I had no issues so far still waiting on my refund.
It looks unfinished. The rubber molding on the sides creased up were it folds. I gave it some time n the heat to see if it would flatten and it didn’t. The corners by the cab looked unfinished. The installation of the rails was horrible, yes I did it right, and it still didn’t close and lock wo slamming it or lifting on the side rails get it to lock. For the amount of money it cost I expect much better. So I returned mine and went with another brand from another company. And am very happy now. No rubber flap edges. Easy install and locks every time. Yes: the return process was fast and easy, but I’m rating the product.
I’m very disappointed with this product. It leaks at both the front and rear, which defeats the whole purpose of having a bed cover/top in the first place. The instructions were also a major issue. I have a Ram with the RamBox bed, but the instructions provided were for a Chevy 1500. The installation is not the same, and it made the process much more frustrating than it needed to be. Had I known the product would not seal properly and that the correct truck-specific instructions would not be included, I would have chosen a different top. At this point, I honestly wish I could return it.
After making several adjustments to maintain the cover from dismantling, I reached out to customer service but have yet to receive a call.
If you want a cover that does not leak look somewhere else. It has been installed correctly and it's still does not prevent water from entering the bed. . after a good rain the bed as water in it do not keep anything that is valuable in your bed.
First of all, I don’t like to bring bad news, that being said, here it goes. Last year 2022 in may, I received my first MX4, it looked great! I had little trouble with installing it, about 30 mins I’d say. My issue is with the overall durability or thickness the bad cover aluminum, it dents so easily. One hailstorm and it looked like a golf ball. Ugh, that was just having it for a few months. The company was receptive to my concern, and sent me a “fiberglass” one to hopefully correct the issue. The next light hailstorm and it was another golf ball. I’m not sure if they sent me another aluminum one by mistake, or their fiberglass dents vs. cracks? It’s just a lot of money to ruin the look of your otherwise tough looking truck. Sorry Bakflip, you even tried to make it right by sending me another one, and still failed. Makes me feel a little sick.
Looks good, I like that it folds all the way for full bed access. One of the bumpers for when it is fully open blew off. Still leaks water inside. Could probably use to be made a little longer for more coverage over the tail gate. I was expecting better for the money I paid for this thing. I have a cheaper one on a different truck that leaks about the same. I going to try some extra gasket in places and hope for the best.