The 2027 Chevrolet Silverado HD adds a new 555-hp turbodiesel V-8 engine called Mongoose and refreshes its gasoline V-8 to 412 hp. Both pair with a 10-speed automatic transmission. The diesel model reaches a maximum towing capacity of 38,000 pounds when properly equipped, up from prior levels.
Chevrolet replaced the hydraulic steering system with electric power steering on the new HD. A new haul/tow mode optimizes throttle, transmission, and braking for smoother operation when towing or carrying payloads. New four-piston, 14.6-inch calipers help manage stopping power for heavy loads. Adaptive cruise control is now standard.
The 6.6-liter gasoline V-8 produces 412 hp and 472 pound-feet of torque with improved cooling and lubrication for towing duty. The 8.3-liter Duramax diesel generates 555 hp and 1230 pound-feet of torque.
Towing and payload ratings shifted slightly. The gasoline model tows up to 20,000 pounds with a 6,990-pound payload, down 300 pounds from the prior year. The diesel version pulls up to 38,000 pounds and carries 6,170 pounds of payload, down 474 pounds.
The Silverado HD lineup spans from a base standard cab two-door work truck to a crew cab High Country with perforated leather seating and Bose audio. The LT trim and off-road-focused ZR2 sit between those options. Base pricing for the 2500 HD Work Truck starts at $49,995; the 3500 HD Work Truck begins at $51,195.
All models include a touchscreen infotainment system with Google-based interface, Apple CarPlay, and Android Auto. A 13.4-inch screen is standard on LT, LTZ, Trail Boss, High Country, and ZR2 trims. Every Silverado HD offers driver-assistance technology and trailer-specific assists, including a multiview camera system with transparent mode for easier towing and maneuvering.