BAKFlip MX4 Truck Bed Covers

Starting at $969.88


America's #1 Selling Hard Folding Cover

America’s #1 selling hard folding cover, the BAKFlip MX4, has new features, including matte-finished cab corner caps, rail-end caps, clamps, and elevator bolts for a more streamlined look and feel. Other MX4 features include an enhanced functionality with pre-molded, die-cut, shock-absorbent bumpers and secure prop rod clips.


This heavy-duty, all-season truck bed cover is designed to perform in extreme conditions. MX4’s resilient infrastructure is for everyday use, featuring NEW upgrades to the prop rod clips, rails, elevator bolts, and the A-panel and B-side bumpers that provide enhanced functionality and a more complete matte-finish look and feel. The MX4’s solid and robust design is flush mount, and backed by an extended 5-year warranty.

NOTE: Some 8' applications may not allow for 3rd brake light visibility due to the height of cab and light location.


  • Premium matte finish
  • Durable aluminum panels
  • Rated up to 400 lbs. of evenly distributed weight
  • 5-year warranty
  • Dual-action tailgate seal
  • NEW finished corner caps featuring a softer seal for a more finished appearance
  • NEW pre-molded and die-cut A-panel and B-side bumpers
  • NEW secure rail end caps
  • NEW prop rod clips securely designed for durability
  • NEW matte-finished elevator bolts and clamps


Please feel free to make use of the BAKFlip MX4 hard folding tonneau cover installation instructions below to assist you with the installation of your BAKFlip MX4 truck bed cover.

Supplemental Sheets

If you need additional install sheets for your specific Make please see below.  

If you have further questions or need technical assistance with the install of any BAKFlip Fibermax truck bed cover, please call one of our knowledgable installation experts at 818-365-9000 or Contact Us and we will be happy to assist you.


BAK® Industries (“BAK”) warrants your BAKFlip MX4 hard folding truck bed cover to be structurally free from defects in material and workmanship for 5 Year Limited Warranty period from the retail date of purchase.

Warranty registration must be on file and/or proof of original purchase (detailed and dated receipt) is required for warranty service. Warranty is nontransferable and applies to the original purchaser of the BAK product only. 

Durable Prop Rod Clips

  • Extra-strong clips holding prop rods in place while driving with the tonneau cover partially or fully closed
  • Prop rods secure your cover in the flipped up position to provide 100% unobstructed bed access

A-panel & B-side Bumpers

Pre-molded, die-cut A-panel and B-side bumpers for shock-absorbency

Cab Corner & Rail End Caps

  • Rail end caps for a more finished look
  • Cab corner caps with a softer, more integrated seal

Matte Elevator Bolts & Clamps

Matte finished elevator bolts and clips for superior UV and scratch resistance; for a premium, integrated look and feel.


6,162 Total
Mark B.
2018 GMC Sierra 1500
5 / 5
6 August 2020
Very easy install. Looks great. Super ease of use. So far, has met my expectations.
Steve O.
2020 Ford F-150
5 / 5
5 August 2020
This is my second tonneau cover from BAK. I love the product. It looks good and endures time & weather!
Randall O.
2020 Ford F-150
5 / 5
4 August 2020
Good instructions and results. NOTE: The instructions do NOT instruct where the second rubber washers go on the large flat bolts but I did see this on a youtube video - minor and logical.
Kenneth S.
2020 GMC Sierra 1500
5 / 5
4 August 2020
Great AMERICAN packaging and instructions. Love it!!
joshua e.
2016 Ram 3500
5 / 5
4 August 2020
This is the best made tonneau cover I have owned. I highly recommend Bak to my co-workers, who mainly drive pickups. I have had an issue with the functionality though. I was under the impression that you could drive with the tonneau propped up with the prop rods. When I tried this, at average freeway speeds (around 65 MPH) I noticed the cover was wobbling more than it should be. The prop rod ... Read More
John H.
2020 Ford Ranger
5 / 5
4 August 2020
This is my 2nd Bakflip cover, the first one lasted 10 years on 3 different Ford F-150's and was left on the last one when I traded in the F150 for my 2020 Ranger.
Nicholas P.
2018 Ram 1500
5 / 5
4 August 2020
Love the look of the cover. It’s flush to the truck. Has a fantastic appearance and looks very durable
Ron S.
2019 Ford F-250 Super Duty
5 / 5
3 August 2020
This is my third Bakflip cover (Silverado, Tundra, and now Ford Super Duty). You guys just keep making them better and better.
james s.
2016 Chevrolet Silverado 2500 HD
5 / 5
3 August 2020
Left front corner seal was installed upside down, but it was an easy fix.
Ross W.
2019 Ram 2500
5 / 5
3 August 2020
Love it so far.