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BAKFlip MX4 Tonneau Cover

  • $969.88
    Unit price per 

Shipping calculated at checkout.


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.


  • 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


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.

CALIFORNIA RESIDENTS: Prop 65 Warning. Visit for more information.


We want to make the installation of your tonneau cover as pain-free as possible. That's why we provide top-notch customer support along with the following videos & guides provided by the manufacturer:

Download the MX4 Installation guide here.


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.

To see how to care for your tonneau cover visit our care & maintenance page for more information.



Depending on the year/make/model combination you choose, the SKU for this product will be one of the following:

BAK-448100, BAK-448101, BAK-448120, BAK-448121, BAK-448122, BAK-448125, BAK-448126, BAK-448130, BAK-448131, BAK-448132, BAK-448133, BAK-448203, BAK-448203RB, BAK-448204, BAK-448207, BAK-448207RB, BAK-448223, BAK-448227, BAK-448227RB, BAK-448307, BAK-448309, BAK-448310, BAK-448311, BAK-448327, BAK-448328, BAK-448329, BAK-448330, BAK-448331, BAK-448332, BAK-448333, BAK-448406, BAK-448407, BAK-448409, BAK-448409T, BAK-448410, BAK-448410T, BAK-448426, BAK-448427, BAK-448504, BAK-448505, BAK-448506, BAK-448507, BAK-448524, BAK-448525, BAK-448602