RealTruck BAKFlip MX4 (GEN 3) Hard Folding Tonneau Cover - 2019-2026 Dodge Ram 1500, Ram 1500

The best-selling truck bed cover in the world just got better.

Introducing the new and improved RealTruck BAKFlip® MX4 (GEN 3 Model Year 2025)—an evolution of RealTruck’s most popular tonneau cover. This next-generation upgrade builds on everything truck owners already love about MX4, now enhanced with improved functionality, greater durability, and elevated security.

The new and improved BAKFlip MX4 is constructed primarily from alloy materials, including heavy-duty aluminum top panels and side rails. Reinforced with high-density polymer cores, each panel delivers a 22 percent increase in overall strength compared to the original model.

Security is also enhanced. In addition to BAK’s patented auto-latching system, which automatically secures the cover when closed, the BAKFlip MX4 (GEN 3) features re-engineered lock components for improved resistance to forced entry compared to the GEN 2. No matter the cargo you’re transporting, you can rest assured knowing your gear’s protected.

When the weather turns, the BAKFlip MX4 (GEN 3) holds strong. Revised EPDM rubber perimeter seals and tight-fit clamps provide our best seal yet, preventing seepage between the bed cover and bed rails. At the rear of the cover, a 13 percent longer dual-action tailgate seal provides weather protection for the tailgate.

The BAKFlip MX4 isn’t only durable; it’s also sleek and stylish. Unlike competitors, the BAKFlip MX4 sits flush with your pickup’s bed rails, practically disappearing into your truck’s profile. And with a sleek, textured matte black finish across all surfaces, the MX4 looks great whether open or closed.

Installation is streamlined thanks to an improved click-in mounting system, reducing setup time by 12 percent. Operating the cover is just as simple—drop the tailgate, release the rear latch mechanism, and fold the cover toward the bulkhead. If full bed access is required, fold the cover flush against the rear window—third brake light visibility remains unobstructed in any position.

PRODUCT HIGHLIGHTS

• High-density polymer-reinforced aluminum top panels are 22 percent stronger than the original MX4
• Precision-engineered aluminum side rails and frame
• Striking textured black finish across all components
• Folds against the cab for 100-percent bed access
• Re-engineered prop rod clips for a secure hold
• Premium rubber bumpers protect the cab when folded into the upright position
• Re-engineered automatic latching panels offer improved security over the GEN 2 design
• Comprehensive 3rd brake light visibility in all positions
• Simple one-person installation
• 12-percent quicker installation with all-new click-in design
• Re-engineered perimeter seals and tight-fit clamps for superior weather protection
• Extra-long, dual-action tailgate seal available on most applications
• Integrated water drainage system
• 400-lb. weight capacity (evenly distributed)
• Assembled in the USA (Missouri)
• Simple bolt-on, click-in installation in under 30 minutes
• 5-year warranty supported by dedicated product experts and customer service team based in the USA

AMERICA’S BEST-SELLING TRUCK BED COVER

• THE ORIGINAL. OFTEN IMITATED. NEVER DUPLICATED: MX4 defined the hard folding category—and still sets the benchmark with patented features, premium materials, and a proven design built to perform.
• BEST-IN-CLASS AUTOMATIC SECURITY COMES STANDARD: The patented auto-latch system engages immediately on closure—no separate locking action required—so your gear is locked down the moment it closes.
• SEALED EDGE-TO-EDGE TO KEEP WEATHER OUT: Advanced seals and precision-fit clamps create a tight, edge-to-edge barrier to block out the elements and keep your cargo dry.
• BUILT STRONGER. BUILT BETTER. BUILT TO LAST: Premium-grade, multi-layer aluminum construction over a high-density core delivers a stronger, more durable surface that’s tested for years of reliable performance. Don’t settle for single-layer construction that bends under pressure.
• FULL BED ACCESS WITH NO COMPROMISE: Simply fold to the cab, secure, and safely drive with the cover fully open—no removal needed for large cargo. Plus, it’s the industry’s only hard fold that doesn’t block your 3rd brake light.
• EASY ONE-PERSON INSTALL—UNDER 30 MINUTES: The simple click-in design lets you install it yourself in under 30 minutes—no extra hands required, and no drilling required for most trucks.

WARRANTY COVERAGE This truck bed cover comes with a hassle-free warranty against defects in materials or workmanship as follows and is supported by dedicated product experts and customer service team based in the USA. This warranty is void if the product has been damaged in an accident, or due to neglect, unforeseeable use, improper installation, improper servicing, or other cause not arising out of defects in material or workmanship.

MX4 & F1 - The truck bed cover carries a limited hassle-free warranty for five (5) years from the original date of purchase, subject to the terms below.

G2 & FiberMax - The truck bed cover carries a limited hassle-free warranty for three (3) years from the original date of purchase, subject to the terms below.

WARRANTY IS NOT TRANSFERABLE The warranty is to the initial owner purchasing the truck bed cover and it is not transferrable to a subsequent end user. Proof of purchase may be required to enforce these warranty rights.

WARRANTY CONDITIONS Failure to follow care and use instructions will void the warranty.

• Clean with mild automotive soap and water only.
• Cover must be secured at all points when vehicle is in motion.
• Check all clamps and retention mechanisms for tightness after a week of driving following installation (or re-installation) of the cover and periodically thereafter.
• Before opening, the cover must be free of all foreign materials including snow and ice.
• Do NOT tow your vehicle from the rear with the cover on your vehicle. If towing from the rear is required, the cover MUST be removed from the vehicle and properly stored.

WARRANTY PERFORMANCE If all warranty conditions are met, a defective truck bed cover or hardware component will either be repaired or replaced (at our option). We reserve the right, for any warranty, to substitute a newer model or bed cover having similar form and function, to offer a warranty discount on an entire replacement system, and/or provide remedies other than those mentioned in this document.

WARRANTY RETURN A Return Material Authorization number must be obtained from our Customer Service Department prior to returning any product. We may require the original item to be returned postage prepaid for final determination. Shipping charges will apply for any repair or replacement. Other than postage or shipping charges, no charge will be made for repair or replacement under this warranty.

This warranty gives you specific legal rights. As an owner, you may also have additional rights and remedies under the laws of your state.

WARRANTY REGISTRATION Warranty registration must be on file and/or proof of original purchase (detailed and dated receipt) required for warranty to be effective.

https://realtruck.com/bak-warranty

INSTALLATION TIME 30 mins or less

INSTALLATION DIFFICULTY Level 1: Simple installation

INSTALLATION OVERVIEW The BAKFlip MX4 (GEN 3) Truck Bed Cover, with its all-new click-in design, offers a simple bolt-on installation using the included tight-fit clamps—no cutting, trimming, or drilling is required. Each order contains all necessary hardware and clamps for a hassle-free installation in under 30 minutes.

For installation tips and tricks, contact the experts, and check out our comprehensive install guides.