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Rain, snow, and sun can take a toll on both your truck bed and your gear. The BAKFlip MX4 uses 1/2" thick, rustproof aluminum panels with a premium density foam core for strength and durability. Matte black rubber seals and an integrated drainage system help keep water out, while the matte black finish resists scratches, scuffs, and UV rays. Together, these details keep your cargo protected and the cover looking great through every season.
When you need to haul large items or load up for a trip, you don’t have to remove the cover. The MX4’s quad-fold design lets you open as much or as little of the bed as you need. Prop rods secure the folded cover upright, so you can drive with the bed completely open. The integrated buckle system also lets you lock it in the folded, flipped up, or closed position, so it’s flexible for whatever you’re hauling.
You shouldn’t have to fight with your tonneau cover to keep your gear safe. The MX4 automatically latches as you close each panel, creating a secure bed when the tailgate is locked. The rear seal design allows you to open or close the tailgate whether the cover is up or down, keeping things simple when you’re loading or unloading.
Some covers sit bulky above the bed rails, but this one keeps a clean, low-profile look. The MX4 mounts inside the bed rails, so it blends smoothly with the truck’s lines and leaves stake pockets open for rack systems or other accessories. Aircraft-grade aluminum rails with a black powder coat finish add to the durability and give it a finished, refined look.
Installing the MX4 is straightforward. The frame rails clamp to the inside of the bed rails—no drilling required—and bolts secure the front hinge rail to the frame rails. Once in place, the cover sits tight and level, ready to handle up to 400 lbs of evenly distributed weight on top.
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.
Jason
12/11/2023
The cover is still excellent and keeps our items dry and secure on those road trips. I stand by my initial review and still wish the weatherstripping would stick the the spray in liner better but its only been a minor annoyance that hasnt resulted in any water getting into the bed.
Do you have a question about this Tonneau Cover?
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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!