Photos Coming Soon
2021 GMC Sierra 2500HD AT4
*Estimated taxes and fees. All amounts reflect the dealership’s listing. DriversHub assumes no liability for omissions, inaccuracies, or non‑disclosed fees in dealer‑supplied pricing.
Start NegotiationNegotiation Potential
1 day listed
Recently listed; the dealer may be less flexible on price.
23+ active alternatives
Similar vehicles nationwide
More available alternatives can strengthen your position.
Ask Miles about this car, what it should cost, and how to handle the dealer.
Loading ranked market context for this listing.
Miles Overview
The Sierra 2500HD is GMC's heavy-duty pickup, built to tow and haul serious loads while offering more comfort than the work-truck norm. It squares off against the Ford Super Duty and Ram Heavy Duty, all three fighting for buyers who need real towing capacity. The steering is direct for a truck this size, and the brakes feel strong even when you're loaded up. Expect a firm ride when empty, which is the trade-off for the payload and towing capability this truck is known for. The cabin is roomy and quiet, with available leather and a large touchscreen that make long hauls more pleasant. Off-road hardware and a tougher look set the AT4 apart from the SLT, while the Denali above it adds more luxury and chrome. The standard 6.6L V8 sends 401 horsepower and 464 lb-ft of torque through a six-speed automatic to four-wheel drive, giving it confident muscle for hauling heavy loads. An available diesel engine makes this a stronger choice for towing, and the AT4's suspension is tuned for better off-road control than the other trims.
Vehicle Specs
Miles Overview
The Sierra 2500HD is GMC's heavy-duty pickup, built to tow and haul serious loads while offering more comfort than the work-truck norm. It squares off against the Ford Super Duty and Ram Heavy Duty, all three fighting for buyers who need real towing capacity. The steering is direct for a truck this size, and the brakes feel strong even when you're loaded up. Expect a firm ride when empty, which is the trade-off for the payload and towing capability this truck is known for. The cabin is roomy and quiet, with available leather and a large touchscreen that make long hauls more pleasant. Off-road hardware and a tougher look set the AT4 apart from the SLT, while the Denali above it adds more luxury and chrome. The standard 6.6L V8 sends 401 horsepower and 464 lb-ft of torque through a six-speed automatic to four-wheel drive, giving it confident muscle for hauling heavy loads. An available diesel engine makes this a stronger choice for towing, and the AT4's suspension is tuned for better off-road control than the other trims.
Buy with Confidence
Review pricing movement and warranty coverage for added transparency.
Estimated Monthly Payment
$797
6% APR for 72 months
*Estimated taxes and fees. All amounts reflect the dealership’s listing. DriversHub assumes no liability for omissions, inaccuracies, or non‑disclosed fees in dealer‑supplied pricing.
Negotiation Potential
1 day listed
Recently listed; the dealer may be less flexible on price.
23+ active alternatives
Similar vehicles nationwide
More available alternatives can strengthen your position.
Ask Miles about this car, what it should cost, and how to handle the dealer.
Driver Reviews
Be the first to review the 2021 GMC Sierra 2500HD AT4
No reviews yet
About this Dealer
Verified Dealer
Courtesy Ford of Rome is a car dealer in Rome, GA.