Hard Folding Tonneau Cover with Built-In T-Slot Rack Rails for Ram Heavy Duty 8-Foot Beds
The BAK 449204TS BAKFlip MX4 TS is a GEN 3 hard folding tonneau cover engineered for 2002-2018 Dodge Ram 1500, 2003-2026 Ram 2500/3500, and 2019-2024 Ram 1500 Classic trucks equipped with an 8-foot bed. The 449204TS combines the proven hard-panel protection of the BAKFlip MX4 platform with integrated T-slot rails running the full length of the cover, allowing rack uprights, cargo carriers, and accessory systems to slide into any position along the rail without removing the cover. Each panel is constructed from impact-resistant aluminum with a solid EPS foam core and covered in a matte black finish that resists UV degradation, dents, and scratches. The 449204TS locks with the tailgate, accepts 400 lbs of evenly distributed cargo weight, and can be flipped completely open or folded while driving. Installation takes 30 minutes or less using the included no-drill clamp hardware. Made in the USA and backed by BAK's five-year warranty.
Key Features
- GEN 3 BAKFlip MX4 TS with full-length integrated T-slot rack rails on both side panels
- Hard folding aluminum panels with solid EPS foam core for rigid cargo protection
- Matte black finish resists UV fading, dents, scuffs, and scratches
- 400 lb load capacity when evenly distributed across closed panels
- T-slot uprights and accessories slide and lock anywhere along the rail without removing the cover
- Drive with cover closed, folded, or fully open in the flipped-up position
- Upgraded GEN 3 latch housing for long-term durability
- Locks with factory tailgate lock for secure bed protection
- No-drill clamp installation in 30 minutes or less
- Not compatible with Ram RamBox cargo management systems
- Made in the USA with a five-year limited warranty
Vehicle Fitment
| Year Range |
Make |
Model |
| 2002-2010 |
Dodge |
Ram 1500 (8ft Bed) |
| 2003-2010 |
Dodge |
Ram 2500 (8ft Bed) |
| 2003-2010 |
Dodge |
Ram 3500 (8ft Bed) |
| 2011-2018 |
Ram |
1500 (8ft Bed) |
| 2011-2026 |
Ram |
2500 (8ft Bed) |
| 2011-2026 |
Ram |
3500 (8ft Bed) |
| 2019-2024 |
Ram |
1500 Classic (8ft Bed) |
Specifications
| Detail |
Value |
| Part Number |
449204TS |
| Material |
Aluminum Panels, EPS Foam Core |
| Finish |
Matte Black |
| Bed Length |
8 Feet |
| Load Capacity |
400 lbs (evenly distributed) |
| Cover Type |
Hard Folding Tri-Fold |
| Rail System |
Integrated T-Slot Channels (Full Length) |
| Installation |
No-Drill Clamp-On, 30 Min or Less |
| RamBox Compatible |
No |
| Country of Origin |
USA |
| Warranty |
5 Years Limited |
What's Included
- BAKFlip MX4 TS tonneau cover panels (449204TS)
- Integrated T-slot side rails
- All required no-drill clamp mounting hardware
- Sliding tie-down anchors (pair)
- Installation instructions
About BAK Industries
BAK Industries has manufactured truck bed covers in the United States since 1988. Based in Shakopee, Minnesota, BAK produces every tonneau cover domestically and is known for construction quality, precise fitment, and durable finishes. The BAKFlip MX4 TS is consistently one of the top-selling hard folding covers available thanks to its combination of full bed access, 400 lb load capacity, and the versatility of its integrated T-slot rack rail system.
Frequently Asked Questions
What is the BAK 449204TS?The BAK 449204TS is the BAKFlip MX4 TS GEN 3 hard folding tonneau cover for Ram trucks with an 8-foot bed. The 449204TS features integrated T-slot channels along both side rails, allowing rack systems and cargo accessories to slide and lock anywhere along the cover without removing it from the truck.
Does the BAKFlip MX4 TS fit Ram trucks with RamBox?No. The 449204TS is not compatible with Ram 1500, 2500, or 3500 trucks equipped with the factory RamBox cargo management system. Verify your bed configuration before ordering.
Can I drive with the BAKFlip MX4 TS installed?Yes. The 449204TS can be driven with the cover fully closed, panels folded against the cab, or with the cover flipped fully vertical in the open position. All three configurations are road-safe.
How much weight can the 449204TS support?The BAKFlip MX4 TS supports up to 400 lbs of evenly distributed load on the closed panels. The integrated T-slot rail system allows compatible rack uprights, cargo systems, and kayak carriers to mount directly to the cover side rails.
What bed length does the BAK 449204TS fit?The 449204TS is designed specifically for Ram trucks with an 8-foot bed. BAK makes other part numbers for 5ft 7in, 6ft 4in, and 6ft 10in beds. Confirm your exact bed length before ordering.
How long does it take to install the BAKFlip MX4 TS?BAK rates the 449204TS installation at 30 minutes or less. The cover uses a no-drill clamp-on system and includes all required hardware. No modification to the truck bed is required.
Does the BAK 449204TS lock?Yes. The BAKFlip MX4 TS latches and locks with the factory tailgate lock. The upgraded GEN 3 latch housing is designed for long-term durability over repeated open-and-close cycles.
What warranty does BAK provide on the 449204TS?BAK Industries backs the BAKFlip MX4 TS 449204TS with a five-year limited warranty from the original date of purchase covering defects in materials and workmanship under normal use.
Installation Instructions
- Clean the truck bed rails thoroughly to ensure clamps seat properly without shifting.
- Position the 449204TS cover into the bed with the hinge at the front near the cab and center it between the bed rails.
- Attach front clamps first by sliding them into the bed rail channels and tightening with included hardware.
- Move to the rear clamps and repeat the process, working front-to-back on each side.
- Verify the cover sits level and flush with the top of the bed rail on both sides before fully torquing all clamps.
- Slide the rear latch bar into the latch housing and confirm it engages the tailgate lock. Test lock and unlock several times.
- Position the sliding tie-down anchors in the T-slot channels for your cargo needs.
- Open and fold the cover through its full range to verify all fold points operate smoothly.
