

Continental 48 states
Limited warranty, every cap
Lightweight · weather-tight
Factory bed rails · no drilling
Universal Fit
Adjustable mounting — fits most full-size and mid-size trucks
Specifications
6061-T6 Aluminum
850 lb
450 lb
Powder-Coated Black
Bolt-On · Bed Rail Clamps
Bolt-On Install · What You'll Need
Install At A Glance
About 1–2 hours
13/17mm sockets, Phillips screwdriver, torque wrench
Intermediate · 2 people required
No drilling — uses existing bed holes
What's In The Box
- Aluminum Bed Cap Shell
- Mounting Clamps & Hardware
- Weather Seal
- Installation Manual
Product Description
Read the full breakdown expand
Your topper just got a backbone.
Most truck bed caps are wasted real estate. This cross bar changes that. Full aluminum. T-slot native. Rated for 850 lb of static load. Mount it once, load it for years.
Fits Your Topper
Compatible with any truck bed cap or topper with a standard T-slot track:
- ● TKMAUTO Aluminum Truck Bed Cap — All models
- ● RSI SmartCap — EVO Sport, EVO Hunter, WorkPro
- ● Rough Country — Truck Bed Cap (T-slot models)
- ● A.R.E. — CX, DCU, Z-Series
- ● LEER — 100XR, 180, XL Series
- ● SnugTop — Rebel, Sport, Platinum
- ● Any cap or topper with a standard T-slot mounting track
Built Different
All-Aluminum Construction
No steel. No rust. Lightweight and corrosion-resistant — built for years of service.
T-Slot Native
Standard T-slot track runs the full width. Slide in any clamp, foot, or accessory mount. Reposition in seconds — no tools needed. Supports T-slot openings up to 45 inches wide.
10 cm Wide Profile
Wider than standard bars. More surface area, more stability for cargo boxes, roof racks, and gear systems.
850 lb Static / 450 lb Dynamic Load
Toolboxes, equipment cases, overland gear — load it up. Rated for on-road use with cargo locked and moving.
Specifications
| Material | Aluminum alloy |
| Length | 60 in |
| Width | 48 in |
| Height | 2–3 in |
| Bar Width | 10 cm / 3.9 in |
| Max T-Slot Width | 45 in |
| Weight | 25 lb / 11.3 kg |
| Static Load | 850 lb / 386 kg |
| Dynamic Load | 450 lb / 204 kg |
| Mounting | Standard T-slot compatible |
| Fitment | Universal — T-slot bed caps & toppers |
Warranty, Shipping & Returns
- Warranty: 1-year limited warranty against manufacturing defects. Warranty details.
- Shipping: Free shipping to the lower 48 from Pomona, California. Please allow up to 2 business days for processing.
- Returns: 30 days from delivery on uninstalled products (10% restocking fee unopened, 15% opened). If the product does not fit the truck listed in our fitment, we exchange it and cover freight both ways. Returns policy.
- Fitment help: Not sure it fits? Email your year, model, bed length, or VIN to support@tkmauto.com before ordering.
— WHO IS TKMAUTO
Aluminum bed caps, built for American pickup trucks.
TKMAUTO focuses on one thing: lightweight aluminum accessories to bling out your truck, old or new, however you want it. Every product ships from our California warehouse, directly to your driveway anywhere in the continental US.
If you have any questions before buying - about fitment, quality, installation - email us, and we'll answer.
Email — info@tkmauto.com
California, USA
Every order ships from our CA warehouse via U.S. freight carriers.
Free U.S. Shipping
Continental 48 states. AK, HI, and U.S. territories on quote.
Aluminum Construction
Lightweight, weather-tight panels. DIY bolt-on install.
6 Truck Lines Supported
Ford · Toyota · GMC · Chevrolet · RAM · Jeep — year-specific fitment.
Frequently Asked
How long does installation take?
Most customers complete the install in about 1–2 hours with two people. No drilling is required — the cap secures to your existing bed rail holes with the included mounting clamps. An install guide is in the box.
Does it come with side windows, or is it solid?
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.
Will it fit my truck?
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.
Will the aluminum rust or the powder coat fade?
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. If you ever have a structural concern, contact us at info@tkmauto.com and we'll work with you directly.
How does shipping work?
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. A phone number is required at checkout so the freight carrier can reach you to schedule delivery.
Built with 6061-T6 aluminum shell and stainless steel hardware. If you ever have a structural concern with your cap, contact us at info@tkmauto.com and our California team will work with you directly.





