Revolver X4 21 F150 6'7"

Part #


BAK Revolver X4 Truck Bed Cover

NOTE: *This Product Has Been Discontinued

To Learn More about our truck bed covers, check out our BAK Finish Fundamentals.

Your Selected Product Fits These Vehicles

  • 2021-2022 Ford F-150 78.9 Bed


Interested in the newer model of this cover? Check out the Revolver X4s – the next generation of America’s #1 selling hard rolling cover.

The BAK Revolver X4, is a premium hard rolling cover that includes all the same great features of the Revolver X2, but with a stylish matte black finish. When closed, heavy-duty aluminum slats secure the cover the full length of the bed on both sides, providing unrivaled strength and security. When opened, the cover rolls up tight providing full bed access without blocking rear view mirror and third brake light visibility.


Please make use of the Revolver X4 Hard Rolling Tonneau Covers installation instructions below to assist you with the installation of your Revolver X4 Hard Rolling Tonneau Covers. 


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 Revolver X2 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 Revolver X4 hard rolling 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. 

To see how to care for your Revolver X4 visit our Care & Maintenance page for more information. 

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Sleek, Low-Profile Design

Revolver X4 sits flush with your bed rail caps providing a low-profile look that complements your truck.

Easy to Use

No lifting required. The cover can easily be rolled open and closed with one-handed operation from either side of the truck.

100% Full Bed Access & Visibility

The Revolver X4 rolls up tight providing 100% bed access without blocking rear view visibility or the third brake light.


1971 Total
Andrew Chepeus 2013 Ford F-250 Super Duty
26 September 2021
Great product
Easy to install and seems very sturdy. Nice locking system
Richard B. 2020 Ford F-150
8 August 2021
I had a bakflip on my previous f150 for 5 years. Love the versatility compared to the hard non folding covers.
Lauriano G. 2021 GMC Sierra 1500
5 August 2021
I had one on my previous 2014 Sierra 1500 and was very pleased with the cover.
James W. 2020 Ford Ranger
3 August 2021
This product is great
Bryan S. 2017 Ram 1500
1 August 2021
Great product, very easy to instal.
Timothy P. 2018 Ford F-150
30 July 2021
Fast friendly service
Mar R. 2021 GMC Sierra 2500 HD
30 July 2021
Love it! Had a family member purchase one for there truck and recommendation. Very satisfied!
Cindy S. 2021 Chevrolet Silverado 1500
28 July 2021
Loved it on my old truck so got the same on this one.
Julious F. 2021 Ram 1500
21 July 2021
It took only 30 minutes to install I know people that have this product it’s great.
Russell B. 2021 GMC Sierra 1500
17 July 2021
Easy to install and looks great.
Michael P. 2021 Chevrolet Silverado 1500
14 July 2021
Great product, second one I hav owned.
Julian P. 2019 Ford F-150
10 July 2021
Worked great, keeps water out while keeping all my space in the bed!
Mark S. 2021 GMC Sierra 1500
10 July 2021
This is my fourth Bak Industries purchase. Great products. Easy installation in only 45 minutes. Perfect fit.
Joshua G. 2019 Toyota Tundra
9 July 2021
I love it. Secures my truck, surprisingly keeps things cooler than outside temperature (when it was over 105 day of installation) and overall definitely pleased with product.
Christipher L. 2016 Ram 1500
3 July 2021
Great product. Would buy again if ever get new truck.