BAKFlip MX4 GMC Sierra Hard Folding Tonneau Cover
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Questions? Chat or Call us: (409) 916-8280
Free Shipping. Ships in 1-3 Business Days
Price Match Guarantee
Safe/Secure Checkout
Questions? Chat or Call us: (409) 916-8280
Sleek, secure, and durable–what else could you want? The bakflip-MX4 tonneau cover is a top-of-the-line hard-folding cover engineered for maximum aesthetics, weather resistance, and security.
The bakflip-MX4 is constructed entirely from alloy materials, including heavy-duty aluminum top panels and side rails.
Unlike comparable soft-folding tonneau covers, you can't simply slice through the MX4 with a pocket knife.
No matter the cargo in the bed, you can rest assured that your gear's protected by a premium bed cover from BAK industries.
When you need to haul large items, just fold the cover toward your cab and secure it in place with the supplied prop rods.
The prop rods rest in an improved rail clip when not in use and upgraded cab bumpers prevent the cover from scuffing your paint.
Upgraded Side Rails
Channeled rails hold the cover in place while shut. These rails feature rubberized endcaps, which prevent any raw aluminum from being exposed.
Universel Tailgate Functionality
Triple fin seals allow the tailgate to operate whether the cover is open or closed. The cover can be closed with the tailgate up too.
Matte Black Finish
The all new matte black finish offers superior scratch resistance and UV protection.
No Drill Clamp
The MX4 can be installed in less than an hour without drilling into the truck bed.
Easy Operation
Each panel automatically latches to the cover's mounting rails as the cover closes. Latches deactivate with a simple pull of the cable.
Choose from Bed Sizes (5'9", 5' 10", 6' 7" and 8' 2")
Choose from Bed Sizes (6'10" and 8'2")
For detailed information on installing the BAKFlip MX4 GMC Sierra Tonneau Bed Cover, please checkout the installation manual below.
Yes it will
A mild soap and water mixture works best, avoid anything with wax as it can cause a build-up on the cover
Correct, the MX4 is a hard-top cover.
On an 8-foot bed yes, anything shorter and it will need to be folded up to the cab.
Touchless carwashes and/or hand washing are recommended. It can be safely driven at highway speeds with no noticeable noise when properly installed.
Approximately 400 lbs. evenly distributed.
Unfortunately acts of nature are not covered under the standard manufacturer warranty
Unfortunately not, the way this cover is designed is to "lock" with the tailgate as there is no external lock on this system.
The panels cannot be separated or bought separately, if looking to replace due do damage it would have to be the entire unit.
California Residents
Prop 65 Warning- Product may contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
Proposition 65 is a California law passed in 1986. Its goals are to protect drinking water sources from toxic substances that may cause cancer and birth defects and to reduce or eliminate exposures to those chemicals generally, for example in consumer products, by requiring warnings in advance of those exposures.
The regulation requires the State of California to revise and republish yearly a list of chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. The current list contains over 900 naturally occurring and synthetic chemicals. This regulation also requires manufacturers to place warnings on products that contain any of the chemicals listed by the State of California. No other states require warnings of this nature, and products with Prop 65 warning language are legal to sell in all states. Detailed information regarding requirements for compliance to the California Prop. 65 is can be found at: www.P65Warning.ca.gov
We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at ExtrailAuto.
Cover was super easy install and so far loving it, they only thing i can say is when you are folding it open when you get to the last two its a little on the heavy side which is understandable, installed it on my 2024GMC2500HD AT4
Shortly after I purchased my truck I wanted something that I could secure my golf club and other items that I wanted to keep in the bed. But working at a correctional facility it has to be secure and not easily accessible unlike the soft covers. Im confident that once the tailgate is locked items are hidden from view and secured.
The BAKFlip MX4 looks amazing on my newGMCDenali. Easy to install. Provides the security I was looking for and function to use entire bed occasionally without having to completely remove the cover. Also the customer service is top notch.
Just as advertised. Arrived within three days, easy to install and looks good on my black 2024GMC2500 Denali. Very useful and allows me to store items securely in the truck bed.
This one fit my 2020GMCCanyon like a glove, easy to install, it is rigid and can be used either full closed or partially folded back, 2 panels of the 3, covering & securing to the 1st panel, so you can put in larger/taller items without having to completely remove the cover.
The wait time was more than I anticipated even after seeing the notification of long lead times. I have to give them props for giving some compensation for the excessive wait time. Having slightly larger holes would help with fitment. Had a hard time getting the front drivers side away from the pinch weld. Eventually had to use washers to add space away from the truck. Need to update pictures and instalation video for the new sliders they are now making
All packing and shipment were great, everything was there. I had to contract out the install because of arthritis, it took them two hours and looks perfect. Zero wind noise at any speed 0 to 100.
Absolutely love my new rack and roam cases. Appreciate the Sherpa crew as well for their hospitality while the installation was taking place.
Fit and finish is excellent. Looks great on the Bronco. No whistling noise at all, some additional wind noise over 60mph but not much different than it was without the rack. Assembly was not too difficult. Instructions and videos could be a little better.
The quality and dedication of the team at Sherpa is evident from the very first interaction with them, and is further proven in the product itself. This rack is well engineered, easy to assemble, easy to adjust, and holds up incredibly well with no loosening or rattling or shifting (even after over 200 miles of driving on poorly maintained roads). Currently operating with approximately 180 pounds of gear mounted on the bed rack and no issues at all so far. I expected the vibration to work the bolts loose over time, but every time I check they're all still snug. My only regret is that I didn't pull the trigger and get this rack sooner.
First of all, the team at Sherpa is full of passion for adventure and that passion shows in the quality of their products. This roof rack looks incredible and surprised me with it's sturdiness. No loosening of hardware, even after weeks of driving. Currently holding approximately 80 pounds of gear for everyday driving, plus an additional 110 strapped on top during a camping trip (and I even stood on top of the entire loadout). No warping, bending, twisting, or slipping. The fact that this matches the bed rack perfectly in height is the icing on the cake. Easily serves as a tie off for a tarp, rain fly, hammock, or whatever you need. Perfect for modular campsite setup and quick teardown.
I bought the Sherpa Crestone rack for my 2024 4Runner TRD Pro. Incredibly well-made and excellent design. Spend the extra , to get best roof rack in the market. You won’t regret it.
This is our first roof rack that we are going to use to put a RRT (roof top tent) on for back country trips. Well-built product that came with all the nuts, bolts and washers to complete the installation. Took about 1-1/2 to 2 hours install the rack. You will another person to help place the racks on top of the Jeep for final install. Overall, a great, well-built American product
Install was super easy. The quality was great. Customer service was quick to respond to any issues! I’ve already been getting compliments on it and what brand it is. This will be great for camping this year!
This is on my tundra absolutely solid rack looks fantastic extremely modular, which is why I went this route. I can use the whole rack when traveling and over landing then rock the chase rack only when the rest is not in use, I actually use the recovery traction board mounts for my shower room set up, which works amazingly just relocated the board somewhere shown in picture keep innovating TUWAand I’ll keep purchasing.
Good looking cat shields made of stainless steel with cooling holes. Priced well, easy install, no issues. Would buy again.
Great service from their staff. Robert help me through all the process with a request I had, he responded all emails in a timely manner and provided great help.
We received it within 3 days and installed the same day. Great awning and very well made.
the tent is very nice, comfortable and roomy.
Following the instructions was fairly easy. Its better to have second person to set it up. I really like the tent and the support that from ExtrailAuto. Really recommeded! Thanks
Questions? Give us a call today. (409) 916-8280
Great fast shipping. Robert was great and helpful
Fit and install as advertised
Nice product. Wish the step was flatter. On the large end I drilled and taped two more holes on the outside edge to pull it down better. After that I’m very happy with them.
Nice, quality sliders that are straightforward to install. They look good on the truck and are very functional. That being said, the one negative was the long delays on shipping and delivery, and communication was less than optimal to say the least.
Love the easy install and videos!
High Quality , great fit. Look awesome.
Sliders look and fit great. Pretty simple and straightforward install however, the install video did leave out some key details and extra non-applicable hardware made install slightly confusing.
My new Rock Sliders “Rock!” I love em’ the fitment was perfect and they look awesome on my 4Runner TRD-ORP!
Had a few issues at the beginning with some missing nuts in the package but that was easily rectified with a trip to the hardware store. This thing is built like a tank, and it's been rock solid heavily loaded over some very rough terrain.
All packing and shipment were great, everything was there. I had to contract out the install because of arthritis, it took them two hours and looks perfect. Zero wind noise at any speed 0 to 100.