Name: BAK BAKFlip MX4 Gen 3 Matte Hard Folding Tonneau Cover - Select 2020-2026 Chevy/GMC 2500/3500 HD (8ft Bed)
Brand: BAK
SKU: BAK448134
Price: 1299.99 USD
Availability: InStock

BAK BAKFlip MX4 Gen 3 matte black hard folding truck bed cover in a partially folded position on a heavy duty truck bed.

BAK BAKFlip MX4 Gen 3 Matte Hard Folding Tonneau Cover - Select 2020-2026 Chevy/GMC 2500/3500 HD (8ft Bed)

$1,299.99

Fits 2020-2026 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD with 8ft beds.

The BAKFlip MX4 Gen 3 (MPN 448134) represents the evolution of the industry's most popular hard folding truck bed cover. This next-generation upgrade features heavy-duty aluminum top panels reinforced with high-density polymer cores, providing a 22 percent increase in overall strength compared to the original model. Designed to sit flush with your truck’s bed rails, the MX4 provides a sleek, low-profile appearance while maintaining a robust 400 lbs. weight capacity.

Security and weather resistance are paramount in the Gen 3 redesign. The patented auto-latching system now includes re-engineered lock components for superior protection against forced entry. For climate protection, revised EPDM rubber perimeter seals and tight-fit clamps work alongside a 13 percent longer dual-action tailgate seal to keep moisture out of the bed. The MX4 allows for 100 percent bed access by folding upright against the cab, secured by re-engineered prop rod clips and protected by premium rubber bumpers.

Heavy-duty aluminum panels with polymer cores (22% stronger than Gen 1)
Textured matte black finish on all surfaces for UV and scratch resistance
400 lbs. weight capacity (evenly distributed)
Dual-action tailgate seal allows tailgate operation with cover open or closed
Simple one-person installation with new 12% faster click-in design
Integrated water drainage system with precision-engineered aluminum side rails
Assembled in Missouri and backed by a 5-year warranty
MPN: 448134

📘 Guides & Manuals

🔧 Fitment & Compatibility

Year	Make	Model	Submodel
2020-2026	Chevrolet	Silverado 2500 HD	Custom
2020-2026	Chevrolet	Silverado 2500 HD	High Country
2020-2026	Chevrolet	Silverado 2500 HD	LT
2020-2026	Chevrolet	Silverado 2500 HD	LTZ
2020-2026	Chevrolet	Silverado 2500 HD	WT
2020-2026	Chevrolet	Silverado 3500 HD	High Country
2020-2026	Chevrolet	Silverado 3500 HD	LT
2020-2026	Chevrolet	Silverado 3500 HD	LTZ
2020-2026	Chevrolet	Silverado 3500 HD	WT
2020-2026	GMC	Sierra 2500 HD	AT4
2024-2026	GMC	Sierra 2500 HD	AT4X
2020-2021	GMC	Sierra 2500 HD	Base
2020-2026	GMC	Sierra 2500 HD	Denali
2024-2026	GMC	Sierra 2500 HD	Denali Ultimate
2022-2026	GMC	Sierra 2500 HD	Pro
2020-2026	GMC	Sierra 2500 HD	SLE
2020-2026	GMC	Sierra 2500 HD	SLT
2020-2026	GMC	Sierra 3500 HD	AT4
2020-2021	GMC	Sierra 3500 HD	Base
2020-2026	GMC	Sierra 3500 HD	Denali
2024-2026	GMC	Sierra 3500 HD	Denali Ultimate
2022-2026	GMC	Sierra 3500 HD	Pro
2020-2026	GMC	Sierra 3500 HD	SLE
2020-2026	GMC	Sierra 3500 HD	SLT

Authencity Guaranteed

We only sell authentic products from verified brand partners and retail partners globally.

Can’t Find the Part You Need?

Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.

Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.


Description
Rating
Vendor
Color