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BAK Bakflip MX4 Part #448329 Ford F-150 Beds 5' thru 5'11"

Bed Length
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Product Description

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BAKFlip MX4, features heavy-duty aluminum matte finish panels that offer superior UV and scratch resistance, and an enhanced premium density foam core. The MX4 is the upgrade to the G2 aluminum series, equipped with upgraded latch housing components, and an all-new integrated tailgate seal that allows the tailgate to close with the cover up or down.

Designed to perform in the most extreme conditions. The MX4’s resilient infrastructure is designed for everyday use, with upgraded components that provide enhanced resistance to the elements without compromising its sleek, low-profile look and feel. The MX4’s solid and robust design is flush mount and backed by an extended 3-year warranty.

  • Matte Finish Aluminum Panels
  • Weight rated up to 400 Lbs.
  • Premium Density Foam Core
  • Premium UV Resistant

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


The MX4 is a popular tonneau cover because of it's easy no-drill installation process. It takes under an hour to install.  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. 

Download the installation sheet

 Download installation guide

 If you have further questions or need technical assistance with the install of any BAK truck bed cover, please call one of our knowledgable installation experts at 844-428-2872 or Contact Us and we will be happy to assist you.

Unrivaled Customer Service On BAK Tonneau Covers

Our reps know BAK covers inside and out. Whatever your question, we've got your BAK. Give us a call at 844-428-2872, or Drop us a line. We are here Mon-Friday 9am - 7pm EST.


Usually Ships Within 1- 3 Days

BAK products are built on demand and ship within 1 to 3 business days. Plus we also offer Free Shipping on all orders!*
*Contiguous U.S orders only.


Top 4 Reasons People Choose

1) Over 100,000 people have trusted to conveniently shop for the lowest prices
on tonneu covers and truck accessories.

2) We are available by phone to answer any questions you have before and after buying.

3) You can save by bundling up your order... Call today and ask about bundle offers including floor
mats and other accessories for a lower cost.

4) Price Match Guarantee – you get your cover now, and you can still keep looking for a better price.

Customer Reviews

Based on 2 reviews
Great experience

Great price and super easy to install

Earl Grim (Cleveland, US)
Bakflip MX4

MX4 was excellent quality and easy to install and was very competitive priced, the staff was very informative about the product. I would recommend this product and company if you were in the market in buying truck accessories.