Search  for anything...

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 547 reviews
Condition: New
Checking for product changes
$1,142.99 Why this price?
Save $57.00 was $1,199.99

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: Only 3 left in stock, order soon!
Fulfilled by US Auto Gear

Arrives Wednesday, Jun 25
Order within 5 hours and 20 minutes
Available payment plans shown during checkout

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

The BAKFlip MX4 was the first matte-finished, hard folding cover to market, becoming America’s 1 Selling Hard Folding Cover in just a few years. Simply put, the MX4 just looks better than other covers. Its sleek no-profile appearance allows you to maintain the appearance of your truck, while enabling you to securely stow cargo in the bed. The MX4’s pioneering, textured matte- finish adds a premium look and feel while also protecting against UV damage, annoying finger print marks, and scratches. MX4 has everything you expect from a premium cover. The engineers at BAK Industries fine-tuned even the smallest elements of the cover, down to adding cab corner caps and rail-end cap, to extending a matte-finish throughout the cover’s side rails, clamps, and elevator bolts. The MX4’s integrated buckle system and automatic latching mechanism allows you to drive with the cover partially or fully opened without covering the 3rd brake light. For 100% bed access, simply unlock the cover from either side via its pull latches and fold the cover all the way up against the cab. From there, you can prop the cover in place by tightening two rods into the underside of the panel. For enhanced durability, the MX4 also features pre-molded, shock-absorbent bumpers on either side of the panel, protecting the folded panels from hitting the cover during turbulent driving. Rain or shine, the MX4 provides confident cargo storage that’s complete with dual drain tubes to divert water away from the truck bed, as well as full perimeter seals to help protect against water intrusion. Finally, the MX4 can hold up to 400lbs of evenly distributed weight and is backed by a 5-year, hassle-free warranty. BAKFlip MX4 is proudly made in the USA with globally sourced materials with a US-based support team. .

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: Wednesday, Jun 25

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.

Top Amazon Reviews


  • Sturdy bed cover
Style: BAKFlip MX4 Size: 6' 7" Bed
Love my bed cover. Sturdy and well designed Fits my 2023 GMC sierra perfectly
Reviewed in the United States on May 29, 2025 by Amazon Customer

  • GMC with factory bed liner.
Style: Revolver X4s Size: 5' 10" Bed
Easier to install then an my old bed cover.
Reviewed in the United States on May 14, 2025 by isaac isaac

  • instillation was easy
Style: Revolver X4s Size: 6' 7" Bed
all around well built product
Reviewed in the United States on April 3, 2025 by drew s.

  • Sturdy, perfect fit.
Style: BAKFlip MX4 Size: 8' 2" Bed
The BAKFlip MX4 was easy to install on my Chevy Silverado with an 8" bed, which has a vinyl bed liner. It's been in the rain and i didn't see any leakage at all. I've made a couple of furniture moves that required the cover to be rolled out of the way, some with the front panel flat, and one that needed the full bed, with the front panel raised against the cabin window. The snap latches for the flat position and the struts for the raised position both worked great. My only complaint, and the reason for four stars instead of five, may be something that can't be avoided because of differences in truck beds. When closing the cover, the side catches don't always lock on both sides at first. I have to shift the cover a bit toward the non-locked side a bit to get both sides to lock. But it's easy to do that, so that's fairly minor. Also, not really an issue to me but something to be aware of - my remote tailgate release does release the tailgate, but with the cover down there is just enough friction with the tailgate that it does not automatically lower. I have the manual gate with power release - my guess is the power up/down gate would probably still lower. ... show more
Reviewed in the United States on May 1, 2023 by Bill Bill

  • Easy to install maybe 30 minutes
Style: Revolver X4ts Size: 5' 10" Bed
Awesome and easy to install
Reviewed in the United States on February 23, 2025 by Randy

  • Consumers shouldn’t have to disassemble, reengineer, and reassemble the rail systems
Style: BAKFlip MX4 Size: 5' 10" Bed
Our package came with reversed rails. No idea until you’re installing the rails… after drilling. So we started following the directions, which aren’t great but if you’re clever enough you’ll figure them out. Installed the snaps and drilled the holes (larger than the instructions called for otherwise the bolts didn’t fit), installed the bolts. Went to attach the rail and nothing lined up. After looking at it a bit we realized they were reversed and we grabbed the other rail. It aligned, but the drain was in the rear and the stabilizer supports were reversed. We removed and reinstalled the drain to the correct side, and removed, recalculated and measured the new location for the stabilizer supports, then installed them. Finished installing everything else. This took over an hour more than it should and required us to disassemble, reengineer, and reassemble the rail systems. This is not what a consumer should have to do on a $1200 cover. I do NOT recommend this cover. FYI: this was installed in a 2025 Sierra 1500 Denali ultimate which has a short bed, carbonpro liner, and multi-pro gate. This was said to fit this exact model. ... show more
Reviewed in the United States on April 28, 2025 by Elle

  • Easy to install and looks great
Style: BAKFlip G2 Size: 5' 10" Bed
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

  • Not completely water proof
Style: BAKFlip MX4 Size: 5' 10" Bed
I had very little choice for my Carbon Pro Bed. It keeps things out of sight, but I could probably open it with a coat hanger
Reviewed in the United States on December 30, 2024 by Arthritis Man

Can't find a product?

Find it on Amazon first, then paste the link below.