Research the GMC Sierra 3500 and learn about its generations, redesigns and notable features from each individual model year.

The 2025 GMC Sierra HD work truck pulls your world with turbocharged power and an impressive lineup of trims. View information about specs and features.

Explore our full lineup of professional grade vehicles. Build & Price your 2025 GMC Sierra 3500 HD by selecting from available trims and features.

The 2025 Sierra Heavy Duty PRO, SLE & SLT pickup trucks offer a Best-In-Class HD Cargo Bed Volume, a 6.6L V8 Turbo-Diesel Engine, a MultiPro Tailgate, and more.

May 4, 2023 · The best GMC Sierra 3500HD model years are 2023, 2022, 2021, 2019, 2017, 2010, and 2009. The worst model years of the Sierra 3500HD are 2015, 2020, 2008, 2011, 2007, 2018, and 2016. This is based on auto industry reviews, NHTSA statistics, reported problems, and consumer feedback.

Nov 14, 2024 · GMC utilizes eight different trim levels across the Sierra and Sierra HD platforms, and in this section, we’re covering the standout features of each and what separates them from the others. Pro Pricing starts at $37,200 for 1500 models and $44,400 for the 2500 models.

The Sierra HD comes standard with a gas-powered 6.6-liter V-8 that generates 401 horsepower and 464 pound-feet of torque. It pairs with a 10-speed automatic transmission and rear- or four-wheel...

Featuring a fully-welded frame, the GMC Sierra 3500 was offered in regular cab, extended cab and crew cab body styles. Gasoline engine power came from 5.7-liter and 7.4-liter V-8 powerplants while a diesel was also available.

Dual-rear-wheel models are available in 3500HD, which brings the maximum towing capacity to 36,000 pounds. GMC offers several trim levels, including Pro, SLE, SLT, AT4, Denali, AT4X, and Denali Ultimate. The standard engine for the 2025 Sierra HD is the 6.6-liter V-8 gasoline engine. It offers 401 horsepower and 464 pound-feet of torque.

An optional 6.6-liter Duramax turbocharged diesel offered with the Sierra 3500 Classic combined with an Alliston six-speed automatic transmission and capable of generating up to 650 pound-feet of torque. Maximum towing capacity with the diesel-powered one …