GMC Sierra 2500HD AT4 (2024) – Heavy-Duty Off-Road Truck, Diesel Torque & Premium Capability
Check out the 2024 GMC Sierra 2500HD AT4 — a powerful heavy-duty pickup built for serious towing, off-road performance, and premium comfort. It combines rugged strength with modern technology and a more refined interior than a traditional work truck.
Under the hood, it comes with a 6.6L V8 gas engine producing around 401 horsepower and 464 lb-ft of torque, paired with a smooth 10-speed automatic transmission. This setup delivers strong and reliable performance for heavy workloads and towing.
An available 6.6L Duramax turbo-diesel V8 takes performance even further, producing around 470 horsepower and 975 lb-ft of torque, making it a true towing monster for heavy trailers and long-distance hauling.
The Sierra 2500 AT4 is also built for off-road use — featuring 4WD capability, off-road suspension, skid plates, and rugged AT4 tuning that improves control on rough terrain, gravel, and mountain roads.
It offers extreme capability with a towing capacity of up to 20,000+ lbs depending on configuration, making it ideal for heavy equipment, boats, and trailers.
The exterior design is bold and muscular — large grille, aggressive stance, off-road wheels, and protective body styling that clearly shows its heavy-duty purpose.
Inside, the AT4 trim adds a more premium feel with leather seating, heated and ventilated front seats, and a driver-focused layout that balances comfort with utility.
Technology includes a large infotainment screen, Apple CarPlay, Android Auto, digital driver display, and advanced towing camera systems to make hauling easier and safer.
Key Features:
• 6.6L V8 Gas Engine – 401 HP
• Available 6.6L Duramax Diesel – 470 HP / 975 lb-ft torque
• 10-Speed Automatic Transmission
• 4WD Off-Road Capability
• Up to ~20,000+ lbs Towing Capacity
• Off-Road Suspension with Skid Plates
• Premium AT4 Leather Interior
• Advanced Towing Camera System
• Apple CarPlay & Android Auto
• Heavy-Duty Build with Rugged Design
Power meets durability. Off-road meets luxury. Work meets performance.
The 2024 GMC Sierra 2500HD AT4 is built for those who need serious towing strength with modern comfort and off-road confidence.
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