Stronger, smarter, and more secure – the BAKFlip MX4 GEN 3 takes everything truck owners loved about the original MX4 and makes it even better. This premium hard-folding tonneau cover from RealTruck has been redesigned with improved strength, weather resistance, and security, all while maintaining the sleek, low-profile look that has made it the #1 selling truck bed cover in America.

Built for Strength

The new BAKFlip MX4 GEN 3 is engineered with heavy-duty aluminum top panels and side rails, now reinforced with high-density polymer cores. This upgrade delivers a 22% increase in overall strength compared to the previous MX4. Whether you’re hauling tools, gear, or weekend essentials, this cover is built to handle it all.

Upgraded Security

Security has been enhanced with re-engineered lock components that offer even greater resistance to forced entry. Combined with BAK’s patented auto-latching system that locks automatically with your tailgate, the MX4 GEN 3 ensures that whatever’s in your truck bed stays safe and secure.

Industry-Leading Weather Protection

Connecticut weather can be unpredictable, but the MX4 GEN 3 is ready for it. With revised EPDM rubber seals, tight-fit clamps, and an extra-long dual-action tailgate seal, this redesigned cover provides superior protection against rain, snow, and dust. Plus, its integrated water drainage system helps keep your cargo dry no matter the conditions.

Sleek and Functional Design

Like its predecessor, the MX4 GEN 3 sits flush with your truck’s bed rails, maintaining a clean, factory look. Its textured matte black finish resists fading and scratches while adding a rugged, refined style to your truck.

And when you need full bed access, the MX4 GEN 3 folds up toward the cab and secures with re-engineered prop rod clips and premium rubber bumpers, keeping your cab protected while leaving your third brake light fully visible.

Product Features

• High-density polymer-reinforced aluminum panels – 22% stronger than the original MX4

• Sleek, textured matte black finish

• Flush-mount design for a low-profile look

• Re-engineered automatic latching system for improved security

• Weather-resistant EPDM seals and extra-long dual-action tailgate seal

• Integrated water drainage system

• Re-engineered prop rod clips for a secure hold

• Premium rubber bumpers protect the cab in the upright position

• Folds toward the bulkhead for 100% bed access

• Simple no-drill, one-person installation (on most applications)

• 400-lb. weight capacity (evenly distributed)

• 5-year warranty

• Proudly assembled in Missouri

Whether you’re upgrading for security, weather protection, or a streamlined look, the BAKFlip MX4 GEN 3 delivers. It’s stronger, smarter, and built to handle anything—making it our top recommendation for truck owners who demand the best.