The BAK BAKFlip MX4 TS is a hard-folding aluminum tonneau cover with integrated T-slot bed rails for the 2020-2026 Chevrolet Silverado 2500/3500 HD & GMC Sierra 2500/3500 HD with the 8.2ft bed. The T-slot channels make it easy to add crossbars, racks, carriers and other cargo management accessories while the cover stays in place. Heavy-duty aluminum top panels ride on precision-engineered rails and support more than 400 lbs, and a specialty automotive coating absorbs impacts and resists dents, scuffs, scratches and UV fading. The panels fold forward to the cab for full bed access without blocking the third brake light, and extra-strong prop rods with rubber bumpers hold the cover open. Durable rubber seals, molded end caps and integrated drainage tubes route water away from the bed. It clamps to the factory bed rails, with minimal drilling on select applications.
- Type: hard-folding tonneau cover with integrated T-slot bed rails
- Rails: integrated T-slot channels accept crossbars, racks, carriers and cargo management accessories
- Construction: heavy-duty aluminum top panels on precision-engineered rails, supports more than 400 lbs
- Finish: matte black specialty automotive coating that resists dents, scuffs, scratches and UV fading
- Security: smooth-functioning automatic latch system
- Bed access: folds forward to the cab for full bed access without blocking the third brake light; prop rods with rubber bumpers hold it open
- Weather protection: durable rubber seals, molded end caps and integrated drainage tubes
- Install: clamp-on, minimal drilling on select applications; bed stake pockets left open for accessories
- Warranty: 5-year limited
- Bed length: 8.2ft
- Part number: BAK449134TS
Vehicle Applications
Fits the 8.2ft bed on the following:
- 2020 Chevrolet Silverado 2500 HD
- 2021 Chevrolet Silverado 2500 HD
- 2022 Chevrolet Silverado 2500 HD
- 2023 Chevrolet Silverado 2500 HD
- 2024 Chevrolet Silverado 2500 HD
- 2025 Chevrolet Silverado 2500 HD
- 2026 Chevrolet Silverado 2500 HD
- 2020 Chevrolet Silverado 3500 HD
- 2021 Chevrolet Silverado 3500 HD
- 2022 Chevrolet Silverado 3500 HD
- 2023 Chevrolet Silverado 3500 HD
- 2024 Chevrolet Silverado 3500 HD
- 2025 Chevrolet Silverado 3500 HD
- 2026 Chevrolet Silverado 3500 HD
- 2020 GMC Sierra 2500 HD
- 2021 GMC Sierra 2500 HD
- 2022 GMC Sierra 2500 HD
- 2023 GMC Sierra 2500 HD
- 2024 GMC Sierra 2500 HD
- 2025 GMC Sierra 2500 HD
- 2026 GMC Sierra 2500 HD
- 2020 GMC Sierra 3500 HD
- 2021 GMC Sierra 3500 HD
- 2022 GMC Sierra 3500 HD
- 2023 GMC Sierra 3500 HD
- 2024 GMC Sierra 3500 HD
- 2025 GMC Sierra 3500 HD
- 2026 GMC Sierra 3500 HD
FAQ
What is the BAK BAKFlip MX4 TS?
It is a hard-folding aluminum tonneau cover with integrated T-slot bed rails for the 2020-2026 Chevy Silverado 2500/3500 HD & GMC Sierra 2500/3500 HD with the 8.2ft bed.
What do the T-slot rails do?
The integrated T-slot channels make it easy to add crossbars, racks, carriers and other cargo management accessories.
Can I use the full bed?
Yes. The panels fold forward to the cab for full bed access without blocking the third brake light.
Does it require drilling to install?
It clamps to the factory bed rails; select applications require minimal drilling, and integrated drainage tubes route water away from the bed.