Search  for anything...
RealTruck

RealTruck BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover | 448131 | Fits 2019 - 2025 Chevy/GMC Silverado/Sierra, works w/ MultiPro/Flex tailgate 6' 7" Bed (79.4")

  • Based on 559 reviews
Condition: New
Checking for the best price...
$1,199.99 Why this price?
Save $100.00 was $1,299.99

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Aug 14
Order within 18 hours and 20 minutes
Available payment plans shown during checkout

Recently Viewed

Style: BAKFlip MX4


Size: 6' 7" Bed


Features

  • Fits 2019 - 2024 Chevy/GMC Silverado/Sierra, works w/ MultiPro/Flex tailgate 6' 7" Bed (79.4")
  • Made in the USA with Global Materials
  • ULTIMATE SECURITY | The BAKFlip MX4 tonneau cover has durable aluminum panels that automatically latch as the cover is partially or fully closed, and is fully locked once your tailgate is closed
  • STYLISH MATTE FINISH | Featuring matte-finished aluminum panels, protecting against marks, scratches and UV damage; as well as premium upgrades to the perimeter seals and hardware
  • 100% BED ACCESS | Operate this cover closed, folded or flipped up, all without covering the 3rd brake light. Paired with a dual action tailgate seal for tailgate operation open or closed

Description

America’s best-selling truck bed cover just got even better.Introducing the BAKFlip MX4 Gen 3—the latest evolution of RealTruck’s most popular tonneau cover. Now better than ever, the BAK has redesigned the for improved strength, security, and all-weather performance. The Gen 3 MX4 features alloy-based construction, including heavy-duty aluminum side rails and top panels, reinforced with high-density polymer cores. This updated design delivers a 22 percent increase in strength over the previous generation, making it even more capable of handling daily use, heavy loads, and harsh environments. Security has also been upgraded. BAK’s patented auto-latching system secures the cover automatically when closed. Newly engineered lock components provide added resistance to tampering and forced entry, allowing you to transport your gear with confidence. In rough weather, the Gen 3 MX4 holds strong. Revised EPDM perimeter seals and tight-fit clamps offer the best seal yet, helping prevent water intrusion along the bed rails. A longer dual-action tailgate seal weatherproofs the tailgate while preserving full functionality, whether the cover is open or closed. While the MX4 is built tough, it doesn’t compromise on looks. The flush-mount design gives it a sleek, low-profile appearance, while a textured matte-black finish across all surfaces delivers a clean, subtle aesthetic. Installation is easier than ever with a new click-in rail system that cuts install time by up to 12 percent. Day-to-day use is just as simple—drop the tailgate, unlatch, and fold the cover forward. For complete bed access, fold the cover against the cab without blocking your third brake light. The BAKFlip MX4 Gen 3 is proudly assembled in Missouri using globally sourced materials and backed by a 5-year warranty.

Brand: RealTruck


Style: BAKFlip MX4


Exterior Finish: Chrome, Painted, Polished


Material: Aluminum


Lock Type: Tailgate


Brand: ‎RealTruck


Style: ‎BAKFlip MX4


Exterior Finish: ‎Chrome, Painted, Polished


Material: ‎Aluminum


Lock Type: ‎Tailgate


Manufacturer: ‎BAK


UPC: ‎192631020486


Global Trade Identification Number: ‎86


Model: ‎448131


Item Weight: ‎71 pounds


Product Dimensions: ‎81 x 23 x 9 inches


Item model number: ‎448131


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎448131


Date First Available: August 23, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Quick and easy
Style: Revolver X4ts Size: 5' 10" Bed
Review Image by Brennan Schrade Brennan Schrade
So far so good. Installation was super easy. (Wish the QR code actually opened the installation docs instead of just porting you to the site to search for it, but oh well). Installed it solo. Took about an hour because I went slow to make sure I got it right the first time. All in one box and packaged well. Looks good so far! ... show more
Reviewed in the United States on July 19, 2025 by Brennan Schrade Brennan Schrade
    • Best looking bed cover out there
Style: BAKFlip MX4 Size: 6' 7" Bed
This cover folds completely up to the window giving you almost the entire bed space. It is great quality and looks awesome on my truck.
Reviewed in the United States on June 20, 2025 by Dennis Pursel
    • It is what I expected
Style: BAKFlip G2 Size: 5' 10" Bed
I read the install instructions and didn't feel like I had any idea what to do. I then searched you tube for "install bakflip". The manufacturer has a great video explaining, and showing, the entire process. It's the 7 year old video from BAK Industries. After watching the video, the install was relatively easy and quick. As far as being waterproof - it hasn't rained since I installed, but I did go through the car wash. Some water got in at the rear, but not so much that I was concerned. Overall, I think the cover is a good design and made with quality materials; hopefully I feel the same way 3 years from now. Memo to BAK Industries - if your printed instructions were more like what Ikea provides, it would be a good thing. ... show more
Reviewed in the United States on July 26, 2023 by Amazon Customer
    • Great Cover but minor issue with latches
Style: BAKFlip F1 Size: 5' 10" Bed
Good cover and Installation was easy. My only complaint is I would like to see the locking / latching mechanism upgraded. The cover has some room to not always line up perfectly with the mounting rails. The Rear has to be checked to see if both sides click into place. Often times one side needs help. Pulling the cover back towards the rear helps out. It does float a bit. Other than that it's a good design and the side rails fit perfectly on my new truck. 4.5 stars. ... show more
Reviewed in the United States on June 16, 2025 by John Paul
    • Easy to install and looks great
Style: BAKFlip G2 Size: 5' 10" Bed
Review Image by Mike Mike
Found this very easy to install, shipped in excellent packaging and arrived damage free. I can see how this will not be very water tight. Also the drain tubes provided will not reach bed drain holes that are to small anyway to route through. All and all no real surprises. Looks like it will be a good cover. Will see how it is in a few months during winter. ... show more
Reviewed in the United States on October 4, 2024 by Mike Mike
    • Update
Style: Revolver X4s Size: 6' 7" Bed
Review Image by Crnbred Crnbred
Review Image by Crnbred Crnbred
RealTruck BAK Revolver X4s Hard Rolling Truck Bed Tonneau Cover | 80131 | Fits 2019-2024 Chev Update June 2024 the original one was defective but i got a replacement because it was under warranty. After just over a year.. the canvas is peeling away from slats. . This is really a bad , bad Hard roller. DO NOT buy Updated review July 2022 Dropped this thing 2 stars. After just over a year the cover/ coating is starting to crack on the next the last slat..pics included. The slat is also raised now instead of laying flat. It is still functioning as normal so only dropped 2 stars for the cosmetic defects. At this price I cannot recommend this product if it is going to have these kinds of issues this early into its life. I guess it can't handle the heat of southern summers. A buddy of mine bought a truck and i specifically told him to stay away from this brand. Buy a hard roller from a less expensive brand. The extra money for this thing does not translate to better quality or endurance. Original review April 2021 Mine came with 1 rubber stopper missing and 1 of the black screw downs was stripped. I have a 2019 Silverado 6.5ft bed. I have a spray in liner. I had to install 3 times because each of the rubber gaskets they gave for the bulkhead made the cover stand to high. The 3rd Install I just chose not to use ether of the gaskets.. still pretty water tight at bulkhead. Some water leaks in at the corners of the tailgate. This cover costs a pretty penny but imo is the best option. Gives you the best combination of accessibility, security, easy of use, and low profile as any. It is a bit heavy but light enough to where I could roll it up , remove it, and install it by myself if I needed to. ... show more
Reviewed in the United States on May 13, 2021 by Crnbred Crnbred
    • Great look.
Style: Revolver X4s Size: 6' 7" Bed
Very happy with this purchase. It fits good and the low profile design is a great look. I like the roll up design that keeps the view out the back window. It took me less than an hour to install working at a leisurely pace.
Reviewed in the United States on August 10, 2024 by ACT
    • Decent Quality bed cover
Style: BAKFlip MX4 Size: 6' 7" Bed
Installation was easy and it will secure your cargo. For the install on my 1500 Silverado there was not enough of the foam tape to place on the front of the truck bed. It will leak.
Reviewed in the United States on September 8, 2024 by jaida

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...