
This 2020 GMC Sierra 2500HD AT4 in Black showcases serious capability backed by proven diesel performance. Powered by the legendary 6.6L V8 Duramax Turbodiesel with 10-speed automatic transmission and 4WD, this truck is built to handle the toughest jobs. With just over 22,000 miles, it remains practically new and ready for its next owner.
- Gooseneck/5th Wheel Package
- Technology Package with Navigation
- Driver Alert Package II
- Duramax 6.6L V8 Turbodiesel Engine
- Dual Alternators (220-amp primary, 170-amp auxiliary)
- Engine Block Heater
- Trailer Tire Pressure Monitor Sensors
- HD Surround Vision with Trailer View Camera
- Premium GMC Infotainment System with Apple CarPlay/Android Auto
- Heated and Ventilated Front Bucket Seats
The AT4 Premium Package elevates this Sierra with premium appointments and advanced off-road capability. You'll enjoy heated steering wheel controls, wireless charging, and a multicolor head-up display for enhanced convenience. The truck bed features a spray-on liner with AT4 logo, while the exhaust brake and high idle switch optimize performance for towing and hauling.
This Sierra is ready to impress. Come test drive this exceptional 2500HD and experience its commanding presence and refined interior. We offer free delivery anywhere in Colorado, and this is a local trade-in priced to sell.
Proudly serving Longmont, Boulder, Denver, Loveland, Erie, Fort Collins, Thornton, Westminster, Lakewood, Broomfield, Golden, Brighton, and Greeley.





