
This 2015 GMC Sierra 3500HD Denali represents a capable work truck built for those who demand performance and refinement in equal measure.
- 6.6L V8 Duramax Turbodiesel engine with 397 hp and 765 lb-ft of torque
- Allison 1000 6-Speed Automatic transmission with electronic grade braking and tow/haul mode
- Exhaust brake for enhanced engine braking control
- Power sunroof
- Rear seat DVD entertainment system
- 4-wheel drive capability
- Heated and cooled leather front seats
- Navigation system with 8 color touchscreen
- SiriusXM satellite radio
- Bose premium audio system
- OnStar with 4G LTE connectivity
- Rear vision camera with dynamic guide lines
- Ultrasonic front and rear park assist
- Remote vehicle starter system
The Denali trim elevates this Sierra with luxury appointments rarely found on heavy-duty trucks. Chrome accents, power-adjustable heated mirrors, and a leather-wrapped heated steering wheel create an upscale cabin environment. The front bucket seats with memory settings and the rear 60/40 folding bench seat provide flexible seating arrangements for both work and family needs.
Mechanically, this Sierra 3500HD is engineered for serious applications. The Duramax diesel engine delivers the torque you need for hauling and towing, while the Allison transmission provides smooth, reliable shifts and integrated tow/haul mode functionality. An exhaust brake gives you additional control on descents, enhancing both safety and component longevity.
Inside, you'll find features designed for long drives and daily practicality. Dual-zone automatic climate control keeps passengers comfortable, while the power sliding rear window and EZ-lift tailgate add genuine convenience. The navigation system integrates seamlessly with the color touchscreen display, and multiple USB ports keep devices charged throughout the day.
The exterior presents a commanding presence finished in gray. Chrome body-side moldings, fog lamps, and frame-mounted recovery hooks underscore the truck's capable nature. The bed liner protects your cargo area while chrome assist steps make entry effortless.
Safety technology includes electronic stability control, traction control, multiple airbag systems, and a comprehensive brake package. The rear vision camera with dynamic guide lines eliminates guesswork when backing up, an especially valuable feature on a truck of this size.
With 73,314 miles on the odometer, this Denali has been maintained and is ready for its next chapter. Whether you need a truck for work, weekend adventures, or daily driving, this Sierra 3500HD delivers the capability and comfort you're looking for. We invite you to schedule a test drive and experience this truck firsthand.



