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When you need to haul large gear or building materials, you can fold the panels up and lock them upright using the built-in prop rods. The BAKFlip MX4’s tri-fold design gives you partial or full bed access in seconds without removing the cover. Its integrated buckle system keeps the panels secure in any position—folded, flipped up, or closed—while letting you drive with the bed completely open when needed.
If you use your truck daily, you need a cover that holds up to work and weather. The MX4’s rustproof aluminum panels are 1/2" thick with a premium density foam core for extra strength. It’s rated to support up to 400 lbs of evenly distributed weight, so it handles heavy snow loads, gear, or tools without flexing. The matte black finish resists scratches, scuffs, and UV rays to keep it looking fresh even after years of use.
You don’t have to worry about rain or road grime soaking your cargo. Matte black rubber seals and a built-in drainage system channel water away from the bed. The rear seal allows you to open and close the tailgate whether the cover is up or down, so loading is simple in any weather. The rustproof aluminum rails with a black powder coat add another layer of corrosion resistance for year-round durability.
The MX4 sits flush inside your bed rails for a smooth, factory look that doesn’t break up your truck’s lines. Because it mounts inside the rails, you still have access to stake pockets and raised side rails for added tie-down or accessory options. The aerodynamic shape also reduces wind drag for a cleaner ride and improved efficiency on the road.
This heavy-duty cover is built for long-term use with upgraded prop rod clips, rails, elevator bolts, and bumpers that give a more refined matte finish fit and feel. It’s easy to install with no drilling required—the frame rails clamp directly inside your bed rails, and front hinge bolts lock everything in place. Backed by a 5-year warranty, the MX4 delivers lasting performance in everyday conditions.
Ratings & Reviews
Rob
6/4/2025
The BAKFlip after 2 years is still functioning great. I fixed the curling cushion by applying some strong adhesive to the spots that had detached, taped it in place and let cure for a couple of days. That solved that issue. Would continue to recommend the BAKFlip to others.
Jenny N.
4/4/2022
You mentioned that the glue holding the pads are failing. I wanted to see if you would be able to send a picture to show the locations.
Sherry H.
5/19/2020
Its still amazing. Works just like its suppose to glad I made the purchase.
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Claire H.
7/14/2026
Thanks for the great feedback! We're glad you're enjoying the tonneau cover and that being able to use almost the entire truck bed when it's open has been such a big plus. It's also nice knowing your gear stays secure when you lock the tailgate. We appreciate you mentioning the clamps too—that kind of feedback is always helpful. Thanks again, and we hope you keep enjoying your new cover!