Rugged Black|Installed

DiamondBack SE

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Rugged Black
Smooth Black
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The worry-free hard tonneau cover.

A durable, locking tonneau cover that's perfect for the Sierra owner who wants to achieve more shown with their truck. The DiamondBack SE seals and secures your bed and is really, really strong. It's built for the unexpected, so you can feel confident you'll be ready for anything.

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  • Haul Capacity 400LBS
  • Cleats Included 4
  • Max Panel Weight 35LBS
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    30-day returns, dirt and all. Test-drive a DiamondBack and don’t hold back. If you’re not sold, return it. Shipping fees apply.
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  • Free shipping in the contiguous U.S.
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  • Built in the USA
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  • Lifetime Warranty
How others are #Diamondbackready

Mention @DiamondBackCovers on Instagram for a chance to have your truck featured.

The coating we use is the exact same spray-on bedliner material used by Ford, Toyota and others for their new trucks before they leave the factory. The largest truck manufacturers have identified this material as the highest-quality coating on the market due to it being the most durable and hardest spray-on coating available. It’s easy to clean and resistant to gasoline, diesel fuel, chlorine and paint. Plus it is environmentally friendly with 100% solids and VOC Free.

The difference is the aluminum underneath the spray-on coating. Rugged Black features diamond plate aluminum and Smooth Black features smooth plate aluminum.

Yes. Because DiamondBack covers rest on top of the cargo box’s rails, bulkhead and tailgate and do not engage with the tailgate, opening and closing your tailgate while the cover is closed will be no issue. Even with a load on top of the cover. Auto-opening the tailgate via key fob may not work.

Yes. Those covers are rated at 400 lbs, so as long as you do not exceed that limit, you are good to stand or walk on top.

Not as vulnerable as you may think. We utilize flat-head machine screws and nylon lock-nuts to fasten our hinges to the cover. The nylon lock-nuts make it very difficult to loosen the screw from the topside of the cover only.

A DiamondBack cover will make the inside of your bed hotter than if it wasn't there. Anytime you remove flowing air from a space, the temperature in that space is more likely to rise, just as it is in your truck’s cab.

We do not have any stocking dealers, however, we do have a number of dealers throughout the United States and worldwide. Contact DiamondBack for assistance locating a dealer near you at 1-800-935-4002.

Yes, with one exception. In addition to the neoprene gasket that’s pre-affixed around the perimeter of your DiamondBack truck bed cover, most late-model pickups will need a single piece of weatherstrip applied to the top of the cargo box bulkhead before the DiamondBack is installed. This piece of weather strip is shipped along with every cover we sell.

Not hard. You’ll need to know how to use a hex key, a socket wrench, and in the case of DiamondBack 270s and DiamondBack 180s, a drill. It also helps to have a second person present. Please have a look at our installation guides for more details.

Yes. In fact, we ship to houses more than to any other kind of destination. Since a delivery signature will be required, the freight carrier will call ahead to schedule a half-day appointment when they know someone will be home to sign.

Hauling Capacity 400 lb
Dimensions Overall Length: 80.75"
Overall Width at Cab: 70"
Overall Width at Tail: 68"
Cab Panel Opening Size: 63.5" × 29.125"
Tail Panel Opening Size: 62" × 29.125"
Construction .080" 3003 alloy aluminum grade
2 structural studs
4 anchor cleats (optional)
EPDM compression gasket
Stainless steel hinges and external hardware
3/8" steel lock rods
Die-cast zinc, keyed lock handles
5356 alloy TIG welds
In the Box DiamondBack SE (assembly required)
Gas springs (4)
Cap clamps (4)
Edge trim pieces (4)
Bulkhead weatherstrip (for most)
1/8" hex key
Installation Time ≤ 90 min
Removal Time ≤ 10 min
We build the toughest truck bed covers on the market and we stand behind them. DiamondBack products come with a limited lifetime warranty which covers both the manufacture and parts of the cover, excluding factory applied coatings which are covered for 3 years from adhesion issues only. Register your warranty online and if your DiamondBack needs some help, just give us a call.

Ratings & Reviews

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Review Highlights

Definitely the most versatile truck cover on the market and it’s so easy to install.

Joe from Illinois

Great looking, rugged, and secure. The truck bed stays dry year round in all weather.

Howard from Minnesota



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