Performance That Excels

The 2026 Sierra 2500HD offers a choice of two formidable engines. The standard engine is a 6.6-liter V8 gas engine, delivering an impressive 401 horsepower and 464 pound-feet of torque. For even greater power, opt for the available Duramax 6.6-liter Turbo-Diesel V8, which churns out a remarkable 470 horsepower and 975 pound-feet of torque. Both engines are paired with a 10-speed automatic transmission, which optimizes power delivery and efficiency. Towing heavy loads around Watkins Glen, NY is a breeze thanks to the Sierra 2500HD's fully boxed frame and sturdy suspension.

Exterior

GMC understands that towing can be a daunting task, which is why the Sierra 2500HD comes equipped with a host of innovative trailering technologies. The In-Vehicle Trailering App simplifies the process by providing customized trailer profiles, pre-departure checklists, and trailer light tests, giving you the confidence to tow like a pro. HD Surround Vision and a Bed View Camera offer multiple views of your truck and trailer, making hitching and maneuvering a breeze, even in tight spaces around Elmira, NY.

With its range of cab and bed configurations, the Sierra 2500HD adapts to your specific needs. Choose from Regular, Double, or Crew Cab models, each offering ample space for passengers and gear. Painted Post customers can choose between a Standard or Long cargo bed, offering up to 83.5 cubic feet of volume for hauling equipment, materials, or recreational gear. And with 4WD across the lineup, you'll have the traction needed to conquer challenging terrain and adverse weather conditions.

Trims Tailored to You

The base Pro trim comes well-equipped with LED headlamps, Apple CarPlay/Android Auto, and the Pro Safety Plus Package. As you move up to higher trims, such as the SLT, AT4, and luxurious Denali, you'll discover an increasing array of premium features and refined finishes. For the ultimate in off-road capability, the AT4X boasts Multimatic DSSV dampers, front and rear e-locking differentials, and 18-inch wheels with rugged mud terrain tires, allowing you to conquer the toughest trails with ease.