Powerful Performance
Under the hood, the Sierra 3500HD offers two impressive engine options. The standard 6.6L V8 gas engine delivers 401 horsepower and 464 pound-feet of torque. For even more power, opt for the available Duramax 6.6L Turbo-Diesel V8, churning out 470 horsepower and a massive 975 pound-feet of torque.
Paired with an Allison 10-speed automatic transmission, the Sierra 3500HD can tow up to 36,000 pounds when properly equipped. Navigating the hilly terrain around Lake Ozark, MO, is no problem with this truck's robust powertrain.
Advanced Technology
The 2025 Sierra 3500HD is packed with advanced technology to keep you connected, informed, and entertained on the go. The available Head-Up Display projects key information onto the windshield so you can keep your eyes on the road. HD Surround Vision provides an overhead view of the truck's surroundings, making parking and maneuvering in tight spaces easier. The In-Vehicle Trailering App offers helpful tools for towing, including trailer tire pressure monitoring and trailer electrical diagnostics.
Safety Features
With a host of driver assistance and safety technologies, the Sierra 3500HD helps you drive confidently. Available features include Adaptive Cruise Control, Automatic Emergency Braking, Forward Collision Alert, Lane Departure Warning, and Rear Cross Traffic Alert. The Trailer Side Blind Zone Alert enhances visibility when towing, providing extra peace of mind on your trips out to Osage Beach.