2021 GMC Sierra 3500 HD AT4

This 2021 GMC Sierra 3500HD AT4 is built for serious work and commanding presence. Equipped with a Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission and 4WD capability, this truck delivers the power and control you need for any job or journey. The white exterior presents a clean, professional appearance backed by premium construction and capability.

Features and highlights:
- Duramax 6.6L V8 Diesel Turbocharged engine
- 10-Speed Automatic transmission with 4WD
- Gooseneck/5th Wheel Package with integrated trailering system
- AT4 Premium Plus Package
- Power-retractable black assist steps
- Spray-on pickup bed liner with AT4 logo
- Upfitter switch kit (5)
- Trailer tire pressure monitor sensors
- Engine block heater
- ProGrade Trailering System

Inside, you'll find comfortable accommodations designed for long hours behind the wheel. The AT4 Premium Plus Package includes heated and ventilated leather-appointed front seats, heated rear seats, and an 8-inch driver information center. Technology features include Apple CarPlay and Android Auto compatibility, a multicolor 15-inch head-up display, HD surround vision, and wireless charging. The truck also offers dual-zone automatic temperature control, remote vehicle starter, and GMC Connected Services capability.

Safety and driver assistance come standard with features like automatic emergency braking, lane departure warning, rear cross traffic alert, lane change alert with side blind zone detection, and forward collision alert. Ultrasonic front and rear park assist, plus a 360-degree HD surround vision system with trailer view camera provisions, make maneuvering easier.

This Sierra 3500HD AT4 combines heavy-duty capability with premium comfort and modern technology. Schedule your test drive today and experience this exceptional workhorse firsthand.