BAK 448410T – BFMX4 07-21 Tun 6’6

$1,249.99

BFMX4 07-21 Tun 6’6

Volume order? Ask about fleet discounts & net‑30 terms.

SKU: BKDA-448410T Category:

Description

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

Introducing the new and improved RealTruck BAKFlip® MX4 (GEN 3)—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. This innovative design also improves operation, maintaining factory tailgate functionality regardless of the cover’s position.

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.

BAKFlip MX4 (GEN 3) Hard Folding Truck Bed Cover – Matte Finish – 2007-2021 Toyota Tundra 6′ 6″ Bed with Deck Rail System without Trail Special Edition Storage Boxes

Additional information

Weight 71 lbs
Dimensions 81 × 9 × 23 in

Vehicle Fitment

Year(s)MakeModelSubmodelBody TypeNotes
2021ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3); Trail Special Edition Storage Boxes: Without Trail Special Edition Storage Boxes
2020ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2019ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2018ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2017ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2016ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2015ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2014ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2013ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2012ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2011ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2010ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2009ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2008ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)
2007ToyotaTundraBASE-Cargo Management System: With Deck Rail System; Matte Finish; BAKFlip MX4 (GEN 3)

Specifications

UPC00819275042666
Weight71 lbs
Dimensions81 x 9 x 23 in
Actual Color
Cargo Light Included
Cargo Management System
Color
Compatible with Bed Caps
Cover Color
Cover Material
Design
Drilling Required
Electric
Finish
Front Opening
Full Bed Access
Install Time
Lockable
Low Profile
Material
Mounting Hardware Included
Operation
Paintable
Painted
Rails To Install
Remote Control Included
Sits on Truck Rails
Style
Tool Box Compatible
Tool Box Included
Type
Universal Or Specific Fit

Warehouse Availability

This product ships directly from the manufacturer. Please contact us for current availability and lead times.

Phone: 800-953-7108   Hours: M-F 8am-6pm | Sat 8am-1pm

Last updated: 2026-07-08 10:45:44