RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448339 | Fits 2021-2026 Ford F-150 (incl. Raptor/Lightning) 5' 7" Bed (67.1")

The packaging is well thought out and it arrived undamaged even though the box had corner damage. Installation took about 90 minutes. It's a very clean look, latches easily, and works as expected. I had to adjust it once to keep it from leaking around the top of the tailgate. The margin of error between sealing the top of the tailgate and keeping the tailgate from opening automatically is slim. I would buy it again. It's worth the money.

Perfect fit on 2026 F-150 5.5-foot bed. It took about 1/2 hour to install. Clean look that fits inside of top bed rail.

This review is more for the company CFD Diesel that sold me the MX4. I've had the MX4 before in trucks, awesome product and highly recommended. But what makes a really awesome product better is a great company that sells them to you. I can't say enough good things about CFD Diesel. The shipping company had damaged the box and my MX4. I reached out to CFD Diesel to help replace the broken part. CFD Diesel worked with me to get this issues resolved; and kept me updated every step of the way. Every message I gave them I got a reply back instantly within business days\hours. I did not have to remind them or ask for status - they always kept me informed without asking. I told them of an upcoming vacation I had where I need the bed cover. They made sure I got the replacement well ahead of time. Having a great product is one thing, but combining that with a great distribuitor - this makes all the difference!!!

This is a phenomenal product. The quality, security, fit, latching mechanism, weather seal, and the ease of removal, beat my expectations. The downside to this particular model are he metal arms that help hold the cover up when folded up. They do not fit in the hooks they are meant to sit in, so the arms swing around in the bed of the truck, or fall down and get in the way of things. That and the quality of the foam paddings could be enhanced. Otherwise this is a fantastic truck bed cover.

I have had the MX4 cover since December 2021 when I took delivery of my 2022 F150. The first one got replaced under warranty in May 2024 due to being completely waterlogged and couldn’t be opened. I will give them props for the warranty, but the replacement/redesigned MX4 I received is a completely inferior product. They told me this was a new and improved design, but it was clear since realtruck took over Bakflip, cost cutting is their priority. The end caps break off easily. And worst of all the latches are much cheaper than Bakflip MX4 of years ago and these new ones freeze in cold weather. DO NOT BUY IF YOU LIVE UP NORTH. I am now going into my second winter with the most recent designed MX4 and it is constantly frozen. These tonneau covers aren’t even worth 1/4 the price that bakflip charges. Will not be buying another one when I buy my new truck next year. Junk.

Very easy install, great quality. Would definitely recommend this product. Installed it on a Ford F150 Lighting and looks great and works perfectly.

Fits great, directions a little hard to figure out but all in all it’s a great product.

This is a great truck bed cover. It's design is almost as good as it can be. The only complaint is the small water infiltration at the tail gate, but over all it is a well made.

Upgraded from the factory Ford trifold. This top is perfect. Fits excellent. Automatic tailgate opens and closes as it should with no interference. Had a major storm yesterday and the box was completely dry except for some water on the tail gate, which I expected. There is a small clearance at the tailgate to allow for the automatic tailgate release. You could adjust it closer if you need. I'm very satisfied. Looks so much better too.

Excellent fit, solid build!

Quick delivery, well packaged, no missing parts. Easy install. Looks great. Was deciding between the X4s and the M4 but I like that the M4 can be partially open. The X4s is either fully closed or fully opened. Very satisfied.

great quality and easy to install, all parts were included. makes the truck look better and everything is secured in the back.

very good quality, easy to install, It took me around one hour for the installation. The instruction is easy to follow.