BAK Industries 448134 BAKFlip MX4 Hard Folding Tonneau Cover Matte Black

The BAK Industries BAKFlip MX4 (448134) is a premium hard-folding truck bed tonneau cover engineered for durability, security, and all-season weather protection. Constructed with aircraft-grade aluminum panels enhanced by a high-density polymer foam core, the MX4 delivers exceptional strength — rated to support up to 400 lbs. of evenly distributed weight.

The MX4 features a flush-mount, low-profile design that sits level with the bed rails, complementing the truck's factory lines without adding bulk. A UV-resistant matte black powdercoat finish across all surfaces — including cab corner caps, clamps, and elevator bolts — provides superior scratch resistance and a refined, uniform appearance.

Key Features:

• Aircraft-grade aluminum panels with premium-density foam core for strength and resilience
• 400 lb. evenly distributed weight capacity
• UV-resistant matte black finish with advanced scratch and scuff protection
• Dual-action tailgate seal allows tailgate operation whether cover is open or closed
• EPDM rubber perimeter seals and tight-fit clamps for maximum water and weather resistance
• Integrated water drainage channels built into the rails direct moisture away from the bed
• Automatic self-latching panels with injection-molded latch housing for long-term durability
• Pre-molded, die-cut shock-absorbent bumpers protect the cab when cover is open
• Secure prop rod clips allow the cover to remain open at highway speeds
• 100% bed access when panels are folded forward toward the cab
• No-drill clamp installation — installs in under one hour
• Locks securely with the tailgate
• Backed by a 5-year limited warranty

The BAKFlip MX4's robust, all-season design makes it equally at home on a work truck or a weekend hauler. Whether protecting tools from the elements or securing gear on the road, the MX4 delivers dependable, low-profile coverage with a factory-integrated look.