American Expedition Vehicles (AEV) is answering the call of the wild with their new GMC Sierra Grande Concept.

Set to debut at the SEMA Show, the Sierra Grande is based on a 2024 GMC Sierra 2500 HD with a regular cab and a long bed. While that’s a relatively plain configuration, AEV got to work and transformed the truck into a rugged off-roader.

Its purpose is immediately clear after looking at the front end, which sports a stamped steel front bumper sourced from the Sierra HD AT4X AEV Edition. The beefy bumper is joined by auxiliary lights, a prototype brush guard, and a 12,500 lbs (5,670 kg) GM Performance/ComeUp winch.

More: 2024 GMC Sierra HD Goes Extreme With First-Ever AT4X And AEV Editions

Bigger changes occur further back as the truck has been equipped with an AEV snorkel, HighMark fender flares, and an 8-foot aluminum tray bed. Eyes will also be drawn to the AEV Salta XD wheels that are wrapped in massive 40-inch BFGoodrich tires.

A custom rear bumper resides out back and is accompanied by a 9,500 lbs (4,309 kg) ComeUp winch. Other highlights include an ARB on-board air system and an AEV vertical tire mount in the bed.

The upgrades aren’t just skin deep as the truck has been equipped with skid plates sourced from the Sierra HD AT4X AEV Edition. The company also worked with the GMC engineering team to “incorporate a variety of Sierra HD AT4X components, such as control arms, steering knuckles, rear suspension, and Multimatic DSSV dampers” into the build. Thanks to this effort, the truck has a 1.5-inch (38 mm) lift that promises to deliver “improved off-road performance and versatility, without sacrificing comfort or durability.”

Power is provided by a 6.6-liter Duramax diesel engine that produces 445 hp (332 kW) and 910 lb-ft (1,234 Nm) of torque. It’s connected to a ten-speed automatic transmission and, we assume, a four-wheel drive system.

 The AEV GMC Sierra Grande Concept Is SEMA Bound, But Built For The Great Outdoors