BAK BAKFlip MX4 Hard Folding Bed Cover

2019–2026 Ram 1500 3.6L V6, 2019–2026 Ram 1500 5.7L Hemi, 2020–2023 Ram 1500 3.0L EcoDiesel, 2025–2026 Ram 1500 3.0L

Part #: 448225

Overview

The BAKFlip MX4 Hard Folding Bed Cover is the latest generation of BAK’s best-selling tonneau cover, designed specifically for Ram 1500 trucks from 2019 through 2026 with various engine options including 3.6L V6, 5.7L Hemi, and 3.0L EcoDiesel. This premium hard folding cover offers truck owners a perfect blend of durability, security, and style. It provides a sleek, low-profile appearance that integrates seamlessly with your truck’s bed rails while protecting your cargo from weather and theft.

Ideal for truck owners who demand both functionality and aesthetics, the MX4 enhances your vehicle’s utility without compromising on style or convenience. Whether you’re hauling tools, gear, or everyday items, the MX4 ensures your cargo stays safe, dry, and secure.

Key Features

The BAKFlip MX4 (GEN 3) builds on the success of previous models with significant improvements in strength, security, and weather resistance. Key features include:

• Heavy-duty aluminum top panels and side rails reinforced with high-density polymer cores for a 22% increase in overall strength
• Patented auto-latching system that automatically secures the cover when closed for enhanced security
• Re-engineered lock components providing improved resistance to forced entry compared to previous generations
• Revised EPDM rubber perimeter seals and tight-fit clamps delivering superior weather protection and preventing water seepage
• 13% longer dual-action tailgate seal that maintains factory tailgate functionality and improves weather resistance
• Sleek, textured matte black finish that complements the truck’s profile and resists fading
• Flush-mounted design that sits level with the bed rails for a streamlined, factory-installed look
• Hard folding panels that allow quick and easy access to the truck bed in sections or fully folded

Construction & Design

The BAKFlip MX4 is engineered with premium materials to ensure long-lasting performance and durability. The cover’s panels are crafted from heavy-duty aluminum, reinforced internally with high-density polymer cores to withstand harsh conditions and heavy use. This construction results in a cover that is both lightweight and exceptionally strong, offering a 22% increase in strength over the original MX4 model.

The side rails are also made from robust aluminum, providing a solid mounting base and contributing to the cover’s rigid structure. The entire cover is finished in a textured matte black powder coat that resists scratches, corrosion, and UV damage, maintaining its appearance over time.

Weatherproofing is enhanced with upgraded EPDM rubber seals around the perimeter and a longer dual-action tailgate seal, ensuring a tight, water-resistant fit that protects your cargo from rain, snow, and dust.

Installation & Fitment

The BAKFlip MX4 is designed for a straightforward, no-drill installation on Ram 1500 models from 2019 to 2026 with 3.6L V6, 5.7L Hemi, and 3.0L EcoDiesel engines. The cover clamps securely to the factory bed rails using included hardware and requires no permanent modifications to your truck. Installation can typically be completed with basic hand tools in under an hour, making it accessible for most DIY enthusiasts.

Once installed, the cover maintains full factory tailgate functionality, allowing you to open and close the tailgate without interference from the cover in any position.

What's Included

• BAKFlip MX4 Hard Folding Bed Cover (GEN 3)
• Heavy-duty aluminum panels with polymer reinforcement
• Aluminum side rails with clamps and mounting hardware
• Patented auto-latching system with re-engineered locks
• EPDM rubber perimeter seals and dual-action tailgate seal
• Installation instructions and necessary tools

Ideal For

The BAKFlip MX4 is perfect for Ram 1500 owners who want a durable, secure, and stylish tonneau cover that enhances their truck’s utility. It is especially suited for those who frequently carry valuable cargo, require weather protection, or desire a sleek, factory-like appearance. Whether you use your truck for work, recreation, or daily driving, the MX4 offers a reliable solution that balances convenience and security.

BAK Industries is a leading truck-bed cover brand known for hard folding and roll-up tonneau designs built for security and daily usability. Signature lines like the BAKFlip® series are designed to keep gear protected from weather and theft while still offering wide bed access—ideal for work trucks and performance pickups that need function without sacrificing style.