Find your next pre-owned vehicle at Red Rock GMC. Our carefully selected inventory of used cars, trucks, and SUVs offers exceptional value, dependable quality, and competitive pricing. Whether you're searching for a reliable daily driver, a capable truck, or a family-friendly SUV, our team is here to help you find the right vehicle with a simple, transparent, and hassle-free buying experience.

- Duramax 6.6L V8 Turbodiesel Engine with 445 hp and 910 lb-ft of torque
- 10-Speed Automatic Transmission with 4WD
- Gooseneck/5th Wheel Prep Package with hitch platform
- Heavy Duty Front Spring/Camper Package
- Denali Ultimate Package including Technology Package and power sunroof
- Navigation System with Multicolor 15" Head-Up Display
- HD Surround Vision with Bed View Camera and 2 Trailer Camera Provisions
- Heated and Ventilated Front Bucket Seats with Driver Memory
- Wireless Phone Projection and Apple CarPlay/Android Auto
- Integrated Trailer Brake Controller with In-Vehicle Trailering System App
- 4G LTE Wi-Fi Hotspot Capable with OnStar & GMC Connected Services
- Bose Premium 7 Speaker Sound System with SiriusXM 360L
- Safety features including Automatic Emergency Braking and Lane Departure Warning
- 20" Multi-Dimensional Polished Aluminum Wheels with Silver exterior finish

This 2021 GMC Sierra 2500HD Denali represents serious capability combined with premium refinement. With the legendary Duramax 6.6L V8 Turbodiesel engine producing 910 lb-ft of torque, this truck delivers the power demanded by discerning buyers who require genuine towing and hauling performance. The 10-speed automatic transmission ensures smooth power delivery across all driving conditions, while 4WD provides the confidence you need in variable terrain.

The Gooseneck/5th Wheel Prep Package with hitch platform demonstrates this truck's readiness for heavy-duty work. Paired with the Heavy Duty Front Spring/Camper Package, you have the foundation for serious adventure or commercial capability. The integrated trailer brake controller and in-vehicle trailering system app put essential towing data at your fingertips, making each trip safer and more controlled.

Inside, the Denali Ultimate Package establishes a work truck transformed into a premium workspace. Heated and ventilated front bucket seats with driver memory adjust to your preferences automatically. The multicolor 15" head-up display presents vital information without requiring you to look down from the road. Wireless phone projection and Apple CarPlay/Android Auto keep you connected to navigation, music, and communications seamlessly. The available power sunroof creates an open, commanding driving position suited to this truck's stature.

Technology integration extends throughout the cabin with the premium GMC infotainment system, Bose audio system with SiriusXM 360L, and the advanced HD Surround Vision system. The bed view camera with two trailer camera provisions gives you complete visibility during towing or maneuvering in tight spaces. Automatic emergency braking, lane departure warning, and forward collision alert keep you protected during daily driving.

Exterior design reinforces the Denali's commanding presence with the signature Denali grille, spray-on pickup box bed liner with Denali logo, and polished exhaust tip. The 20" multi-dimensional polished aluminum wheels and silver finish combine strength with visual sophistication. LED cargo area lighting and roof marker lamps ensure visibility in all conditions.

This truck arrives ready for work or play, asking only that you take the next step toward ownership. We invite you to visit our showroom, walk around this Sierra 2500HD, and discover how it might serve your needs.

Select Shield includes a 3-month or 3,000-mile limited warranty on select vehicles, valid in all 50 states. Excludes as-is, tax, tow