2021 GMC Sierra 2500 HD AT4

This 2021 GMC Sierra 2500HD AT4 delivers the capability and comfort you need for work and life. Finished in white, this truck combines rugged capability with refined appointments designed for those who demand performance without compromise.

- Duramax 6.6L V8 Turbodiesel engine with 445 hp and 910 lb-ft of torque
- 10-Speed Automatic transmission with 4WD
- 220-Amp alternator and engine block heater for reliability
- X31 Off-Road Package with 2-Speed Active Transfer Case and Hill Descent Control
- Integrated Trailer Brake Controller with In-Vehicle Trailering System App
- Heated and ventilated front bucket seats with 10-way power adjustment and lumbar support
- Premium GMC Infotainment System with Apple CarPlay and Android Auto
- SiriusXM 360L satellite radio with HD Radio capability
- Spray-on pickup box bed liner with AT4 logo
- Heated steering wheel and auto-dimming rear-view mirror
- 4G LTE Wi-Fi hotspot capability
- OnStar and GMC Connected Services ready

The Duramax diesel engine is built for serious pulling and hauling, pairing proven reliability with impressive torque delivery. The truck's suspension and braking systems are engineered to handle demanding work conditions while the 4WD capability gives you confidence in challenging terrain. Off-road features like Hill Descent Control and the active transfer case demonstrate this truck's versatility.

Inside, the AT4 puts you in a commanding driving position with heated and ventilated seating, memory functions, and an adjustable steering column. Climate control comes through dual-zone air conditioning, heated rear seats, and rear window defroster. The cabin feels intentionally designed for long days behind the wheel, with premium materials and thought-out ergonomics.

Technology integration keeps you connected and informed. The infotainment system supports wireless phone projection, giving you seamless access to navigation and communications. Multiple USB ports throughout the cabin ensure your devices stay charged, while the 4G LTE hotspot turns your truck into a mobile workspace.

The AT4 package includes premium appointments like red recovery hooks, a painted black surround grille, and heated power door mirrors. Fog lights and fully automatic headlights enhance visibility, while the spray-on bed liner with AT4 branding adds both protection and personality to your work surface.

This Sierra 2500HD is equipped and ready to handle whatever you bring to it. Whether you're towing, hauling, or simply commanding the road, this truck delivers the performance and comfort that define the AT4 experience. We invite you to schedule a test drive and see this capability firsthand.