2021 GMC Sierra 3500 HD Denali

This 2021 GMC Sierra 3500HD Denali represents a premium heavy-duty truck built for those who demand capability and refinement in equal measure.

- Duramax 6.6L V8 Turbodiesel with 445 hp and 910 lb-ft of torque
- 10-Speed Automatic transmission with 4WD
- Denali Ultimate Package with Technology Package and power sunroof
- Gooseneck/5th Wheel Prep Package for serious towing applications
- Trailer Tire Pressure Monitor Sensors with in-vehicle monitoring
- ProGrade Trailering System with integrated trailer brake controller
- Power-retractable assist steps with LED perimeter lighting
- Dual 220-amp primary and 170-amp auxiliary alternators
- Engine block heater for reliable cold-weather starts
- HD Surround Vision with 2 trailer camera provisions and bed view camera
- Bose Premium 7-speaker sound system with SiriusXM 360L
- 15-inch diagonal head-up display with multicolor graphics
- Wireless phone projection and 4G LTE Wi-Fi hotspot capable
- Heated and ventilated front seats with 10-way power adjustment
- Spray-on pickup bed liner with Denali logo

The Denali Ultimate Package elevates this truck beyond standard offerings, combining luxury appointments with serious work capability. The 6.6L Duramax diesel engine delivers substantial torque from 1,600 rpm, making this truck responsive whether you're daily driving or towing heavy loads. The 10-speed automatic transmission provides smooth power delivery across the entire range of operation.

Technology integration throughout the cabin keeps you connected and informed. The premium GMC infotainment system includes navigation, Apple CarPlay, Android Auto wireless phone projection, and OnStar capabilities. The surround vision camera system with trailer view provisions delivers confidence when maneuvering in tight spaces or backing up trailers.

Trailering features are comprehensive. The integrated trailer brake controller works seamlessly with the truck's handling characteristics, while the trailer tire pressure monitoring system keeps you aware of trailer wheel conditions during long hauls. The gooseneck and fifth-wheel prep package provides the infrastructure for heavy-duty towing applications without aftermarket modifications.

Interior comfort matches the truck's capability. Heated and ventilated leather-appointed seats with lumbar support reduce fatigue on long drives. Dual-zone automatic climate control, heated steering wheel, and memory seat functions personalize the driving experience for regular operators.

Safety systems address both on-road and off-road scenarios. Lane departure warning, forward collision alert, automatic emergency braking, and rear cross traffic alert provide active protection. The terrain management system includes hill descent control, optimizing performance in challenging driving conditions.

This Sierra 3500HD Denali delivers the diesel power and trailering capacity professional users expect, wrapped in Denali luxury and comprehensive technology. Schedule your visit to see this capable truck in person.