This 2021 GMC Sierra 2500HD AT4 combines serious capability with premium comfort, built for both work and the road ahead. Finished in striking black with jet black leather interior featuring kalahari accents, this crew cab delivers the power and presence you expect from a heavy-duty truck. Under the hood lies the legendary Duramax 6.6L V8 turbodiesel engine paired with a 10-speed automatic transmission, giving you commanding performance and efficiency, while 4WD capability ensures confident handling in any conditions.

- Power-retractable black assist steps
- Gooseneck/5th wheel package with hitch guidance
- Engine block heater
- 220-amp alternator
- Premium GMC infotainment system with navigation and Apple CarPlay/Android Auto
- Heated and ventilated front bucket seats in perforated leather
- Surround vision camera system with bed view camera
- Multicolor 15 head-up display
- Spray-on pickup box bed liner with AT4 logo
- Wireless phone projection and charging

With approximately 138,000 miles, this Sierra remains a capable work truck and reliable daily driver. The AT4 Premium Plus package and technology upgrades create a refined cab environment, while features like ultrasonic park assist, lane change alert, and automatic emergency braking add modern safety to traditional truck toughness. Schedule your test drive today and experience why the Sierra 2500HD AT4 sets the standard for premium heavy-duty trucks.