Adventure-ready hardware meets impressive power. The Sierra Heavy Duty off-road truck’s available Duramax 6.6L Turbo-Diesel V8 engine features an efficient turbocharger and 10 …

Test drive Used GMC Sierra 2500 AT4 at home from the top dealers in your area. Search from 1575 Used GMC Sierra 2500 cars for sale, including a 2020 GMC Sierra 2500 AT4, a 2022 …

4 days ago · Get KBB Fair Purchase Price, MSRP, and dealer invoice price for the 2025 GMC Sierra 2500 HD Crew Cab AT4. View local inventory and get a quote from a dealer in your area.

Find the best GMC Sierra 2500HD AT4 for sale near you. Every used car for sale comes with a free CARFAX Report. We have 1,028 GMC Sierra 2500HD AT4 vehicles for sale that are …

Save up to $7,783 on one of 1,880 used GMC Sierra 2500HD AT4s near you. Find your perfect car with Edmunds expert reviews, car comparisons, and pricing tools.

View detailed specs, features and options for the 2024 GMC Sierra 2500HD 4WD Crew Cab 172" AT4 at U.S. News & World Report.

Save $11,016 on a GMC Sierra 2500HD AT4 Crew Cab 4WD near you. Search over 26,000 listings to find the best local deals. We analyze millions of used cars daily.

Test drive New 2025 GMC Sierra 2500 AT4 at home from the top dealers in your area. Search from 179 New GMC Sierra 2500 cars for sale ranging in price from $68,594 to $116,248.

Used GMC Sierra 2500 AT4 for sale on carmax.com. Search used cars, research vehicle models, and compare cars, all online at carmax.com

Jun 12, 2025 · Read on for a breakdown of the 2025 GMC Sierra 2500 AT4 vs AT4X—and when you’re ready, contact our team or visit us to see these powerful pickups in person.