• Fast, Free Shipping

  • Price Match Guarantee

  • Family Owned

  • Award Winning Service

  • No-Hassle Returns

BakFlip MX4 Tonneau Cover 448329

  • Our Price: $988.88
  • Shipping:FREE SHIPPING
  • Part Number: 448329
  • UPC: 819275042376
  • Rating: (618)

What Do You Drive?
loading
loading
loading
loading

Unsure of your truck bed size? Click here to see how to measure

item enlarge

BakFlip MX4 Tonneau Cover

  • Part #: 448329
  • without Utility Storage Box

$988.88

Free Shipping

Select your vehicle details above to ensure item compatibility.

Ships between 10/26/21 - 10/28/21
  • We will NOT be undersold on BakFlip Tonneau Covers! Seen a better price? Call us at 800-663-1570 and we'll beat it!
  • Bring both style and function to your truck with the durable and lightweight BakFlip MX4 Aluminum Tonneau Cover
  • New and improved universal rear seal – closes with tailgate in the open or closed position
  • Fully opens for complete, 100% bed access
  • Standard model available, or choose to add the BakBox utility storage box (not available for all vehicles)
  • Enhanced heavy-duty Aluminum construction – resistant to scratching and UV radiation
  • Injection molded latch housing for superior durability
  • Attractive Black flat matte finish
  • BakFlip Comparison Chart
  • Made in the USA
  • Backed by a 5-Year Warranty

Whether you’re loading your truck up with sand, cement, or concrete, or packing up for a weekend camping trip, your cargo needs to be protected, and your truck deserves to look good. If you want to add all the convenience of a locking trunk to the style and function of your pickup, equip your rig with the BakFlip MX4 Aluminum Tonneau Cover.

Not only do the enhanced heavy-duty aluminum panels look great in their flat matte finish – they also provide incredible resistance to scratches and UV rays. In addition, the premium density foam core stands up strong to heavy use and abuse. The newly upgraded rear seal is universal, and allows you to close your cover while the tailgate is in the open or closed position - no need to worry about damaging your cover when you close the cover in a hurry. Now, new and updated features include include Matte elevator bolts, prop rod clips, rail end caps, and finished cab corner caps.

Your BakFlip MX4 Aluminum Tonneau Cover is rated to hold up to 400 lbs of evenly distributed weight right on top. The latch housing is injection molded, for supreme durability that will last for the long haul. This cover is made in the USA and backed by a 5-Year Warranty.

Optional Upgrade: Choose the Standard BakFlip MX4 model, or maximize your truck bed's functionality by adding the optional BakBox Folding Toolbox. This truck toolbox is strong, lightweight, easy to handle, and works seamlessly with the BakFlip MX4. (BakBox not available for all vehicles.)

BAK 448329 fits:

  • 2015-2020 Ford F-150

BakFlip MX4 Tonneau Cover Customer Reviews

Overall:
Performance:
Quality:
Appearance:

Overall Rating:

4.8 of 5

Average Install Time: 30-60 minutes

Showing 84 of 618 reviews. See All Reviews.

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

The cover looks great and went on easily but it needs to be a little longer because it barely covers the tailgate and I am afraid it will leak water in through there!!!!

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Fit my needs perfectly! No complaints so far. It was easy to install, hardest part was getting in out of my truck bed. I watched the installation video before.

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Very Easy install by myself. Video and instructions included were very clear. Minimum of tools needed to complete task. Product seems to be tough and well built. Even though I have a drop in factory Bedliner with bed lip at front end I may remove and add the foam gasket that was included for a no Berliner or spray in bedliner install of tonneau cover for a better seal from rain.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Installed easily by myself. All the parts were in the box. Looks great. Packed nicely. But did have a few scratches top left panel.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

The installation was clear and able to be completed in expected time 30 to 60 minutes. The overall appearance is awesome with outstanding functionality allowing full use of bed.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Very pleased with how easy it was to install. It gives my truck the look and security I was looking for. Chat line was very helpful with the questions I had.

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Did not fit properly at first. Took several adjustments.

Install Time: 2+ Hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

I watched the installation video before purchasing, then twice after delivery. It made the installation so much easier I think, than just reading the directions. It took mute a little longer to install than it probably should have, simply because I was double checking everything to ensure accuracy. The process wss quick and easy and I wouldn't hesitate to do it again. A solid product to work with and I look forward to having many good years of service from it. I've already used the flip feature with the buckle clips and I love how simple the process is.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Product arrives on time. I watched YouTube several times before the product arrived so didn't need to read the instructions. Installation was easy, did this all by myself. I am very happy with this product so far.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Love my BAKFlip MX4! There are several latch points which assure that the cover stays in place. Materials are sturdy, low profile and seals along rail make this an outstanding product.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

So far installation was simple and the result was an impressive, nice looking cover.

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Excellent fit. High quality product. There are several YouTube videos on how to install which are worth watching before you get started. Very good service and price from Auto Accessories Garage. Arrived within 4 days of placing order.

Install Time: 30-60 minutes

Overall:
Performance:
Quality:
Appearance:

Since I am 73, it took a little longer than what I wanted, younger guys with muscle and good legs can do the job in 30 - 45 min. It is pretty simple to install, and the directions are top notch, it is pretty easy, even a caveman could do it!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

This is my first bed liner so I dont have much to compare it to. Great design. Easy to install. Wish panels were a little more robust material Hate to see what this thing looks like after hail storm. Maybe vinyl coated? Also wonder about the rubber. How much UV protection?

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Has leaked from first installation.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Awesome great product I would recommend it to all good price.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Looks nice, works good. I think i will buy one again, thanks.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Great truck bed cover!

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Cover look good quality... hmmm nothing special. Beware of those two rods holding your cover upright they on rivets installation is poor. Mine are loose and bending back and forward. I need to drill them out and replace with screw. The only thing that's good about this cover is you can keep it upright, other than that there's plenty of different good covers out there for a lower price.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Easy to install. My only problem was the adhesive tore off the foam seal for the front of the bed. It looks great. The top panels unlock and lock easily. I would choose it again.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Sealed well, appearance is good.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Product was relatively easy to install with a little help from my wife. Had a Ford bed liner installed previously and the installation went according to instructions. Pleased with the product. It took about an hour to install with minimal effort.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Excellent product, I highly recommend it. Amazing online service, delivery on time, parts complete, good quality. Just a couple suggestions, you can add a link to a Installation video, so it is easier to follow. Also, the metal clamp does not go all the way up, so I do not know if that is something that will affect the product the a long term, so mentioning this possibility will be good to guide the user. Thanks a lot!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Easy to install. Fits like a glove, I really like the low profile of the cover. Quality seals to keep water out. Great product. I would recommend this truck cover to anyone. The locking device by the tail gate is easy to break into. Just lift up on the cover and use a wire with a small hook on it to hook the cable and pull it to open. Other then that great cover. Looks good on my Raptor too.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Excellent fit. Good quality.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Well if I can install it, anyone can! Watched the video and really thought "I can do that" and was not wrong. The only issue I had was that I live in Texas and trying to get some "cooler" time to do it is not easy. Looks great on the truck but have not yet had any rain so cannot testify how water tight it is.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Cover came with NO instructions but plenty of knowledge on internet. Very simple and easy installation. Hardest part drilling 7/8" hole with 1/2 in bit, but worked out fine,, well and has endured a Houston flood with NO leaks!!!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

I love the clean look of my new BAK MX4. And it is so much more practical for hauling larger cargo/items than my old SnugTop. It completes the look of my F-150 Platinum!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

The MX4 was easy to install and looks great!

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Missing screw for strap and rubber gasket not glued well. The drain plugs were smashed but I bent back to shape. I installed. I'm sure they will make right. I will update after I talk to customer service.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Just installed so not 100% sure of performance or quality but appearance is nice and it fit perfectly!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Great fit, excellent quality and color. Like new MX4 over older model since the new auto open feature is a winner without having to lower tail gate.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

The product is good but it only came with 6 clamps and after a few days of use they came loose very easily. It should come with 8 clamps as that solved my issue.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

The BakFlip MX4 is great at this point. I haven't had it long enough to see if it leaks or if there any other issues. Based on the quality so far, I'm impressed. It was easy to install. I really like the look and functionality of it.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Wife and I took our time to install with constant interruptions. Instructions were good. Diagrams could be improved. Impressed with the quality and looks. Some adjustment may be needed later but should not be a problem. I would buy again and would recommend.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Very easy installation. Well constructed and improvements over my last Bak cover. I bought the Bak box also and you need to plan on how you are going to install both at the same time. I had to do weather stripping, rails and drain hoses before the box and then install the tonneau cover next.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

The BakFlip MX4 bed cover installed in just 45-60 minutes. It fit the truck bed nicely and final adjustments and securing the cover went smoothly. I am very happy with the cover... it does everything it said it would do!! I highly recommend this product!

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Great phone service, fast shipping, great prices.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

This cover works great and is very sturdy. Very low profile and is easy to use. Can stand on it and clean the top of the truck with no problem. This is the 3rd bakflip that I’ve owned. My opinion bests covers on market.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Was fast and easy to install. Works very well. This cover is on my wife’s truck and she has no trouble using it. And the best thing about it is that you don’t have to use a key to unlock it.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Excellent product!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Very easy for one person to install. I used Vice-Grips as a second hand when installing the rails. Looks and functions great.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Looks great on my 2018 f150. Install was easy as I watched a video on YouTube as I was doing it. Auto garage has great customer service and I am very happy with my mx4 cover!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Just finished installing my new bakflip mx4. Love the way it looks, had some trouble with one of the white strikers getting stuck, I called Bak and they rushed out a new one. Still too early to tell performance as I haven't had it installed for very long but I'm very happy with it so far! I plan on adding the bakbox as well as that seems like a great addition.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Install was simple and self explanatory. Looks great and the fit was perfect. No water leaked in the car wash. Definitely happy with this product!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

A pair of vise grip players assisted with holding the rails in place if you are installing by yourself.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Looks good.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Shipped fast!! Easy to install. Just follow directions.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Great cover. Easy and quick install.

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Quality cover - is not an overly complicated installation and it doesn't take a lot of time (less than a six pack). I have been using the MX4 tonneau cover for about 7 months and its holding up to the elements like a champ, no fading and zero leaks. I have used cheaper covers in the past and I highly recommend spending a little extra money for a whole lot more quality.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Easy install, works and looks great.

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Way better than expected. This product is very well manufactured and looks very professional. I owned an older version and is wasn't a nice looking.

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Not as good as a fit as I would of hoped.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

This is my favorite tonneau cover! It's strong enough to stand on, seals 100% while still allowing the auto tailgate to work. Easy install and flush look. Instructions were straight forward and the quality of hardware and product are great!

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Very nice product, professionally packaged, very easy installation ,USA 👍

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Great cover! Easy install - watched a video on YouTube, went and installed it. Under 45 minutes by myself. Looks great - not sure about water right, but would definitely recommend. And as one other reviewer mentioned, my truck has less road noise than before. A bonus!

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Great product. Super easy to install with one person. With 2018 F-150 tailgate auto open still works fine with cover closed. Its not all that tight especially at the tail gate portion, but does the trick.

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Not much to say so far since it was only installed over this past weekend. The cover was very easy to install and didn't require any additional cutting etc. It would help to have an extra set of hands to install the rails but isn't totally necessary. The only downside so far is a little water near the front drains but that's to be expected.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

This was my 2nd backflip and it installed well.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Everything fit nicely and installed as advertised. Bed is dry so far.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Overall, I'm pretty happy with how it turned out. Unfortunately, the left rail was bent when it arrived and the underside of the cover was scratched. I bent the rail back and neither can be seen once the cover was installed. Looks sharp now that it's installed.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Very good looking cover. I love how it looks. Not as secure as I was hoping. Can be opened with a “slim-Jim” coat hanger fairly easily. Install instructions advise removing bed drain covers and this can easily break them. It broke one of mine. Handles rain fairly well. Only minimal water in the bed after heavy rain. Allows for tailgate to open via remote easily.

Install Time: 1-2 hours

Overall:
Performance:
Quality:
Appearance:

Easy to install and looks good.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Looks nice. As advertised. Easy to install.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Easy install and looks great!

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

It was so very easy to install. It fit like a glove. I also purchased the too; box. It is awesome. It was also easy to install. I love the way you can close the tail gate without having to raise the cover up. Top of the cover looks GREAT.

Install Time: Under 30 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Great looking cover. Very easy to follow instructions. I would have taken less than 30 minutes but wanted to take my time to make sure put it on right.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Good instructions for installation and makes installation easy. Only minor adjustments are needed to insure s good fit.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Great product and easy to install. Looks great!!

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Just what I was looking for. Easy to install Need screws to mount clips on 2017 F150 cannot get at back of bed to attach threaded bolt. That's about as hard as it gets.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

I was happy with the product and it installed fairly easy.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Very easy to install. Looks great, and does not leak. Had a big storm right after I installed it, no leaks. Very satisfied.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

It took me about 2 hrs but at 75 years young I am a bit slower.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Very impressed with the unit. Good quality materials and easy to install yourself.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Outstanding product. Rugged, strong, and looks great too. Fits my F-150 perfectly. Worth every penny. I couldn't ask for more.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

The above says it all.

Install Time: 1-2 hours

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

My Bak MX4 is a great addition to my 2015 F150. Package shipped fast and arrived in perfect condition. Installation went as expected after viewing installation video online. This is a well made cover that provides a low profile look which is complemented by the matte finish. I expect it will last for many years. My only complaint is that this cover is not completely waterproof, which isn't a deal breaker for me. Buyers should understand that they may need to apply additional caulking along the inside track corners. My overall experience with Auto Accessories Garage was excellent as they immediately matched a competitor's lower price. I wish they offered more choices for running boards.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

These covers are the best! Strong, sturdy and very water resistant.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Cover was ordered and delivered on time and in good shape. It installed easily and looks great on my truck, already had people ask where I got it from and I tell them AutoAccessoriesGarage.com.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

I've only had this two weeks, but it seems to be everything that I desired in a bedcover. Easy for an old man to install (I have not cut holes for drainage in the bed wall). I am anxious to see how much water collects in the bed before drilling holes for the hoses.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Installation was easy with the help of the online video! Cover looks great and is easy to handle when folding. I have not installed the drain hoses yet as I have a spay in liner and need to locate the factory plugs so I can drill without messing anything up. I am no mechanic but this install was very easy with some help from my son!

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Really like the product. Video and paper instructions were easy to follow. Tested water tight going through car wash which resulted in small sprinkles in the bed near the edges of the tailgate. Nothing at risk of getting soaked. Able to leave Bak cover down while opening and closing tailgate. BakFlip overlaps on top of tailgate with a couple of water seals. My pre-purchase needs: Water resistant, security, quality, low profile. BakFlip MX4 met my needs and expectations. I would buy again.

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

Love this cover! Worth every penny, shipped out quick, watched the install video before it arrived. Installed in about 35 minutes. I could not have asked for a better cover at a better price, thanks AutoAccessoriesGarage!

Install Time: 30-60 minutes

who drives a Ford F150
Overall:
Performance:
Quality:
Appearance:

I received the product on the date stated when purchased and it was padded very well. The cover was very easy to install, only took approximately 45 minutes. I have not had a chance to see if it is water tight but it seemed to seal as described. It looks great and I am very pleased with it at this point. I just installed it today so I cant really elaborate on its performance yet.

Install Time: 30-60 minutes

Showing 84 of 618 reviews. See All Reviews.