Rack Ready Coverage for Heavy Duty Silverado and Sierra Beds
The BAK 449134TS BAKFlip MX4 TS delivers premium hard folding protection for 2020 through 2026 Chevrolet Silverado 2500 HD, 3500 HD and GMC Sierra 2500 HD, 3500 HD trucks with an 8.2 foot bed. Integrated T slot side rails let you mount racks, cargo boxes, and rooftop tents directly to the cover while keeping gear secure and dry below.
Key Features
- Integrated T slot side rails for direct rack and accessory mounting
- High density polymer reinforced aluminum top panels, 22 percent stronger than standard MX4
- Multi Shield matte black finish resists scuffs, scratches, and UV damage
- Auto latching security system with re engineered lock components
- Dual action tailgate seal allows tailgate operation in any cover position
- Folds fully forward against the cab for complete bed access
- Supports up to 400 lbs of evenly distributed weight
- Click in clamp design speeds up installation with no drilling required
Fitment
| Year Range | Make | Model |
|---|---|---|
| 2020-2026 | Chevrolet | Silverado 2500 HD |
| 2020-2026 | Chevrolet | Silverado 3500 HD |
| 2020-2026 | GMC | Sierra 2500 HD |
| 2020-2026 | GMC | Sierra 3500 HD |
Specifications
| Detail | Value |
|---|---|
| Part Number | 449134TS |
| Bed Length | 8.2 ft |
| Material | Aluminum with high density polymer core |
| Finish | Multi Shield matte black |
| Weight Capacity | 400 lbs evenly distributed |
| Warranty | 5 year limited warranty |
| Country of Assembly | United States |
| UPC | Contact us for current UPC |
What’s Included
- BAKFlip MX4 TS folding tonneau cover panels
- T slot side rails
- Click in clamp hardware kit
- Prop rods and mounting brackets
- Installation instructions
About BAK Industries
BAK Industries, a RealTruck brand, has engineered truck bed covers in the United States for decades. Each BAKFlip MX4 TS is assembled in Missouri and backed by BAK’s commitment to durable, functional bed protection for daily drivers and overlanders alike.
Related Parts on Our Site
- BAK BAKFlip MX4 TS for Ram 2500/3500 8ft Bed
FAQ
What is the 449134TS?
The 449134TS is a BAK BAKFlip MX4 TS hard folding tonneau cover built for 8.2 foot bed Silverado HD and Sierra HD trucks. It combines rack ready T slot rails with a durable aluminum panel design for secure, weatherproof bed coverage.
Which trucks fit the 449134TS?
The 449134TS fits 2020 through 2026 Chevrolet Silverado 2500 HD, 3500 HD and GMC Sierra 2500 HD, 3500 HD trucks with an 8.2 foot bed.
Can I mount a roof top tent on the 449134TS?
Yes, the integrated T slot rails allow direct mounting of compatible racks, cargo baskets, and rooftop tents.
Is drilling required to install the 449134TS?
No, the 449134TS uses a clamp on design with no drilling required for installation.
What is the weight capacity of the 449134TS?
The 449134TS supports up to 400 lbs of evenly distributed weight when closed.
Can I still access my truck bed with the 449134TS installed?
Yes, the cover folds completely forward against the cab for full bed access.
What warranty comes with the 449134TS?
The 449134TS is backed by a 5 year limited warranty from BAK Industries.
Will the tailgate still open normally with the 449134TS installed?
Yes, the dual action tailgate seal allows the tailgate to open and close regardless of the cover position.
Install Instructions
- Remove factory bed rail caps if present and clean the bed rail surface.
- Position the click in clamps at the marked mounting points along the bed rails.
- Set the BAKFlip MX4 TS panels onto the rails and engage the clamps.
- Attach the T slot rail sections and torque all hardware to spec.
- Install prop rods and verify the cover folds and latches smoothly.
- Test tailgate operation with the cover in the open and closed positions.
