2024 GMC Sierra HD AT4 and AT4X: 5 Things to Know

May 22 2023 -

The 2024 GMC Sierra HD AT4 and AT4X both deliver the performance, capability, bold styling, and proven ruggedness the Sierra HD has always been known for. However, the AT4 and AT4X take it one step further by significantly enhancing off-road capability and providing a wide range of advanced features designed to take you further off the beaten path without compromising comfort or capability. Here are five things worth knowing about the 2024 GMC Sierra HD AT4 and AT4X models:

Distinct Technologies and Exclusive Components for Optimal Off-road Capability

The 2024 GMC Sierra HD AT4 and AT4X are ready to hit the off-road trails right out of the factory with exclusive components such as a 1.5-inch factory lift kit that increases ground clearance to 11 inches. Multimatic DSSV dampers provide dependable off-road chassis dynamics, and an electronically locking rear differential provides optimum traction in the toughest situations. Moreover, improved underbody protection and skid plates guarantee that your Sierra HD is protected off the beaten path.

Available AEV Bison Package

The Sierra HD AT4 and AT4X are very capable right out of the gate. However, an available AEV Bison package from American Expedition Vehicles, made available for the first time on the Sierra HD, further enhances capability. The package includes new heavy-duty iron front and rear bumpers that are rustproof, integrated winch, and tow hooks. You also get unique 35-inch all-terrain tires and distinct AEV design elements.

Multiple Powertrain Options

Both the GMC Sierra HD AT4 and Sierra HD AT4X deliver exceptional performance with their available lineup of proven engines. The base powertrain is a 6.4-litre turbocharged V-8 with 401 hp and 475 lb-ft of torque, while the available 6.6-litre turbo diesel Cummins powertrain provides a massive 475 hp and 975 lb-ft of torque. Both these engines are paired with a proven 10-speed Allison automatic gearbox. The AT4 and AT4X Sierra HD models therefore deliver the same ruggedness, efficiency, and power that the Sierra HD has always been known for, along with a reliable engine lineup and gearbox.

18,500 pounds of Max Towing Capability

Buyers interested in a GMC Sierra HD are likely looking for towing capability as one of their main criteria. Despite its advanced off-road capabilities and performance, the 2024 GMC Sierra HD AT4 and AT4X are more than capable of meeting your towing needs. Both models can tow up to 18,500 pounds, providing the proven capability you want out of your HD pickup.

Impressive Luxury Features in the 2024 GMC Sierra HD AT4 and AT4X

The Sierra HD AT4 and AT4X models are not just about capability, ruggedness, off-road performance, and towing. The AT4X in particular delivers impressive luxury features that enhance comfort and keep you connected. The AT4X features 16-way power front seats with a massage feature, a 12-speaker Bose premium sound system, authentic wood trim, and a full-grain leather interior, and more. Both models feature front heated and ventilated seats, and an advanced infotainment system with a 13.4-inch diagonal display and the largest head-up display in the segment. You also get a digital instrument cluster as well as Google built-in infotainment.

Give us a call today to learn more about the impressive new 2024 GMC Sierra HD AT4 and AT4X.

Contact Us