Discover the ultimate heavy-duty hauler with this 2020 GMC Sierra 3500HD AT4. Equipped with a powerful Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission, this truck delivers exceptional capability and performance. Explore the off-road-focused AT4 features, including:- 3 Month or 3,000 Mile Powertrain Warranty Included- Must see- AT4 Premium Package- Driver Alert Package I- Driver Alert Package II - Gooseneck/5th Wheel Package- Gooseneck/5th Wheel Prep Package- X31 Off-Road PackageThis Sierra 3500HD also boasts an impressive array of advanced safety and technology features:- Lane Departure Warning System- IntelliBeam Automatic High Beam On/Off- Automatic Emergency Braking- Following Distance Indicator- Forward Collision Alert- Safety Alert Seat- Hill Descent Control- Power Sunroof- Wheels: 20"" 6-Spoke Bright Machined AluminumWith its exceptional capability, premium features, and rugged good looks, this 2020 GMC Sierra 3500HD AT4 is a must-see for any serious truck enthusiast. Schedule your test drive today and experience the ultimate in heavy-duty performance.