All 50 states · no minimum
Our California warehouse
Lightweight · weather-tight
Factory bed rails · no drilling
Fits: 2019–2025 (6.5ft)
Precision-engineered bolt-on fit — no modification required
6061-T6 Aluminum
850 lb
450 lb
~180 lb
Powder-Coated Black
Bolt-On · Bed Rail Clamps
75–90 minutes
13/17mm sockets, Phillips screwdriver, torque wrench
Intermediate · 2 people required
No drilling — uses existing bed holes
Cap, cross bar, rack platform — engineered as one system. Add all three for a complete overland build.
— WHO IS TKMAUTO
TKMAUTO focuses on one thing: lightweight aluminum bed caps that bolt onto factory bed rails — no drilling, no body shop. Every cap ships from our Pomona, California warehouse, direct to your driveway in the lower 48.
If you have a fitment question before buying — for your year, trim, or 5.5ft vs 6.5ft bed — email us. We'll confirm before you click ADD TO CART.
Email — info@tkmauto.com
Pomona, California
Every order ships from our CA warehouse via U.S. freight carriers.
Free U.S. Shipping
All 50 states. No minimum, no hidden freight surcharge.
Aluminum Construction
Lightweight, weather-tight panels. DIY bolt-on install.
6 Truck Lines Supported
Ford · Toyota · GMC · Chevrolet · RAM · Jeep — year-specific fitment.
2019–2025 · 6'6" Long Bed · Matte Black
Hard shell. No rust. Clamps on.
Full aluminum topper built for the Sierra and Silverado 1500 long bed.
Haul tools to the job site. Pull up to a trailhead Friday night.
Gas struts hold them open hands-free. Full reach to the front of your bed. Keyed locks on both sides, weather-sealed.
Dual full-length tracks, front to back. Crossbars, rooftop tent, cargo basket — anything T-slot. 450 lbs moving. 850 lbs parked.
Both side walls pre-drilled. Bolt in a drawer system, shelves, or tool organizers. No drilling. Modules sold separately.
6000-series aluminum with EPDM gaskets on every door. Cold-tested in Canada. Your gear stays dry — first winter, tenth winter.
6-piece flat-pack. Assemble in 1–2 hrs. Clamp to your bed rails in 30 min. Take it off clean — your truck looks stock.
| Fits | GMC Sierra 1500 & Chevy Silverado 1500 — all trims |
| Year | 2019–2025 |
| Bed Size | 6'6" Long Bed |
| Material | 6000-Series Aluminum |
| Finish | Matte Black Powder Coat |
| Side Panels | Solid Aluminum |
| Rear Door | Tinted Tempered Glass |
| Roof Rails | Dual Full-Length T-Slot |
| Roof Load | 450 lbs moving · 850 lbs parked |
| Cap Weight | ~190 lbs (86 kg) |
| Install | No-drill clamp system |
Fits all 2019–2025 GMC Sierra 1500 and Chevy Silverado 1500 with a 6'6" long bed.
No. Clamps to your bed rails. Take it off and your truck looks stock.
Yes. Add crossbars to the T-slot rails. 850 lb static rating when parked.
Most guys finish in under 2 hours — assembly and mount included.
Yes. EPDM gaskets on every door. Tested through Canadian winters.
Most customers complete the install in 75–90 minutes with two people. No drilling is required — the cap secures to your existing bed rail holes with our stainless clamp kit. A printed install guide with torque specs is in the box.
We build both versions on the same 6061-T6 aluminum shell — same load rating, same bolt-on install. The difference is only the side panels:
Windows — tempered sliding glass on the driver and passenger sides. Better for overlanding, camping, pets, or any time you want airflow and outward visibility.
Solid — fully enclosed aluminum panels. Better for job-site tool security or gear you want out of sight and keyed-locked.
This cap is cut for the specific year, make, model, and bed length listed in the fitment box at the top of the page. If your truck matches that spec, the cap is engineered to bolt right on. Short-bed and long-bed versions are not interchangeable.
The shell is 6061-T6 aluminum — corrosion resistance is inherent to the material, so the structure won't rust. The exterior is finished in powder-coated black for UV protection. Even if the powder-coat gets scuffed at a job site, the aluminum underneath stays sound. The shell is backed by our lifetime structural warranty.
Free freight shipping in the continental US, from our California warehouse via LTL carrier. Delivery requires a signature; the carrier will schedule a window once it reaches your local terminal.
The aluminum shell carries a lifetime structural warranty against defects in material and workmanship. Glass, gaskets, locks, and gas struts carry a 1-year warranty. Fitment support is direct from our California team.
