Commanding Performance You Can Count On
The GMC Sierra 3500HD offers two robust engine options. The standard 6.6-liter V8 gasoline engine features Variable Valve Timing and direct injection technology for reliable power. For maximum capability, the available 8.3-liter Duramax Turbo-Diesel V8 engine provides exceptional torque with B20-Diesel compatibility.
Both engines pair seamlessly with the renowned 10-Speed Allison automatic transmission. The GMC Sierra 3500HD is available with four-wheel drive across most trims, with select configurations offering rear-wheel drive. An auto-locking rear differential enhances traction, while the StabiliTrak stability control system with Proactive Roll Avoidance and electronic trailer sway control ensures confident handling.
Multiple body configurations include Regular Cab, Double Cab, or Crew Cab options with standard or long bed lengths. Wheelbases range from 142 inches to 172 inches, and dual rear wheel configurations are available for maximum payload capacity.