Bak Industries 448441 BAKFlip Hard Folding Tonneau Cover - MX4

The BAKFlip MX4 is the best-selling truck bed cover in the world, now available in the GEN 3 version with enhanced functionality, greater durability, and elevated security. This premium tonneau cover is constructed from heavy-duty aluminum top panels and side rails, reinforced with high-density polymer cores that deliver a 22 percent increase in overall strength compared to the original model.

Key Features:

• Patented auto-latching system that automatically secures the cover when closed, with re-engineered lock components for improved resistance to forced entry
• Revised EPDM rubber perimeter seals and tight-fit clamps provide superior weather protection, with a 13 percent longer dual-action tailgate seal
• Rated to support up to 400 lbs of evenly distributed weight with injection molded latch housing for long-term durability
• Improved click-in mounting system reduces installation time by 12 percent, with DIY installation possible in under 30 minutes
• Flush-mount design sits level with bed rails and features a sleek, textured matte black finish on all surfaces
• Folds flush against the rear window for full bed access while maintaining third brake light visibility

The MX4 features heavy-duty aluminum matte finish panels that offer superior UV and scratch resistance, and an enhanced premium density foam core. An integrated tailgate seal allows the cover to be closed with the tailgate in either the closed or open position. Tested in the harshest conditions—from -40 to 180℉ and zero to 95% humidity—and backed by a 5-year warranty.

Proudly manufactured and assembled at BAK's state-of-the-art facility in Missouri using globally sourced materials.