Sep 26, 2025

With advanced technology, a comfortable cabin, and rugged power, the 2025 GMC Sierra HD doesn’t compromise. To see exactly what’s included, visit your nearest GMC dealership to schedule a test drive.

Four Reasons Drivers Love the 2025 GMC Sierra HD

1. Unbridled Power

The 2025 Sierra HD is available in two configurations with seven different trim levels. The 2500 is a three-quarter-ton truck that can haul heavy loads as well as handle hefty trailers. As a one-ton truck, the 3500 cranks things up another notch with a maximum payload and towing capacity that can manage even the heaviest jobs.

All trims come with a powerful 6.6-liter V8 gasoline engine as standard that pairs with a 10-speed automatic transmission. This provides an impressive 401 horsepower and 464 lb-ft of torque. If you have even greater hauling needs, the available Duramax 6.6-liter Turbo-Diesel engine has even greater capacity with a blistering 470 horsepower and 975 lb-ft of torque.

2. Outstanding Towing Capacity

Both of the Sierra HD models are well-equipped for towing as well as hauling. With a gooseneck and a gasoline engine, the 2500 can tow up to a maximum of 16,500 lbs, while the 3500 can handle up to 19,000 lbs. If you opt for the diesel engine, the towing capacity is even greater. The 2500 can tow up to 22,500 lbs while the 3500 can handle 36,000 lbs with a gooseneck and twin rear wheels.

A trailering package is included as standard with all models and trims, with features such as integrated trailering mirrors and a trailer brake controller. This means that you don’t need to purchase any additional packages or equipment to be able to tow large loads right away.

3. Advanced Connectivity

The interior of the 2025 Sierra HD isn’t sidelined and includes an impressive array of tech. Every trim has a 7-inch touchscreen as standard that provides access to the full infotainment system, plus navigation and maps. The system is also compatible with Apple CarPlay and Android Auto, so your full range of favorite apps is never more than a finger-swipe away.

4. Unparalleled Cargo Space

Brute strength is no good without the space to load up, but thankfully there’s no shortage of room in the 2025 Sierra HD. The best-in-class cargo capacity means that you’ll have plenty of room, with options for longer or awkward loads with the different bed lengths. A standard bed provides 69.5 cubic feet of cargo space, but this can be extended to 83.5 cubic feet with a long-length bed.

In addition to the large size, the cargo beds on the Sierra HD have features that are specifically designed to carry heavy loads. This includes a high-strength steel bed for extra toughness and tie-down hooks to secure cargo.

Contact us today at Schwan Buick GMC in Mandan, ND to learn more about what the 2025 Sierra HD can offer.