2026 GMC Sierra 2500 HD Trim Level Comparison

For a heavy-duty truck that has it all, choose the 2026 GMC Sierra 2500 HD. In addition to a robust powertrain lineup that includes an optional diesel engine, this pickup boasts best-in-class front headroom and legroom, as well as best-in-class HD cargo bed volume. At Findlay GMC Prescott, this excellence is shared across seven trims, all of which you can explore today.

Powertrains

Two engines are available for the 2026 GMC Sierra 2500 HD. Standard on most trims is a 6.6-liter gasoline V8 engine rated at 401 horsepower and 464 lb-ft of torque. Also available is a Duramax® 6.6-liter Turbo-Diesel V8 engine that outputs 407 horsepower and 975 lb-ft of torque.

Pro

Pro is an exceptional all-around trim. Its standard features include 17-inch steel wheels, LED exterior lighting, and a locking tailgate.

In its cabin, a seven-inch touchscreen hosts wireless smartphone connectivity and a Wi-Fi® hotspot. Safety-wise, Automatic High Beams and Forward Collision Mitigation come standard.

SLE

The biggest difference between Pro and SLE is the latter’s infotainment platform. SLE upsizes to a 13.4-inch touchscreen with Google built-in™, and pairs this display with a 12.3-inch digital instrument panel.

SLT

On the outside, this GMC truck for sale upsizes to 18-inch alloy wheels and adds power-folding and power-extending trailering mirrors. Cabin enhancements include leather heated seats, a heated steering wheel, and the Digital Steering Assist System, which helps reduce driver fatigue.

AT4

This midrange trim equips rugged equipment such as 20-inch wheels, underbody skid plates, and an off-road suspension tuning. It also features the MultiPro® configurable tailgate and a spray-in bedliner.

AT4X

AT4X builds on the AT4 trim’s wares with a driver-selectable locking rear differential and a raised off-road suspension with advanced adaptive dampers. AT4X also adds trailer tire-pressure sensor capabilities.

Denali

This penultimate trim’s many premium amenities include wood and aluminum interior trim, premium leather seats, and a premium Bose® sound system. A bed-view camera and a power-sliding rear window also come standard.

Denali Ultimate

This range-topping trim dazzles at our Prescott, AZ GMC dealership. A partial list of its many upgrades includes Kicker® tailgate audio, power-deploying side steps, and best-in-class 16-way power front seats with massage.

Find Your 2026 GMC Sierra 2500 HD Near Camp Verde, AZ

The 2026 GMC Sierra 2500 HD is one of the most exciting heavy-duty trucks on the market. Visit Findlay GMC Prescott to explore this pickup’s exceptional seven-trim lineup and learn about our personalized financing and fantastic GMC lease offers.