This 2021 GMC Sierra 2500HD Denali in Black represents a well-maintained, one-owner truck built for serious work and capable weekend adventures. With its powerful Duramax 6.6L V8 Turbodiesel engine and extensive Denali appointment package, this truck delivers the performance and luxury that discerning truck owners demand.

- Duramax 6.6L V8 Turbodiesel with 445 hp and 910 lb-ft of torque
- Denali Black Diamond Edition with premium appointments
- Denali Ultimate Package including power sunroof and Technology Package
- 20 high gloss Black painted aluminum wheels
- Auxiliary trailer camera with in-vehicle trailering system app
- MultiPro Audio System by Kicker with SiriusXM 360L
- Premium GMC Infotainment System with navigation and Apple CarPlay/Android Auto
- HD Surround Vision with bed view camera
- Heated and ventilated front bucket seats with power adjusters
- Heated steering wheel and power-retractable LED assist steps
- Automatic emergency braking with forward collision alert and lane departure warning
- Ultrasonic front and rear park assist
- Cargo tie-down rings and 5th wheel/gooseneck trailer wiring provisions
- Engine block heater and 2-speed active transfer case with hill descent control

The interior reflects Denali's commitment to comfort and technology. Forge perforated leather seats with heating and ventilation keep you comfortable whether you're navigating city streets or rough terrain. The power sunroof adds natural light and airiness to the cabin. Premium floor liners with removable carpet inserts protect the interior while maintaining an upscale appearance. A heated steering wheel and automatic-dimming rearview mirror contribute to daily driving convenience.

Safety and visibility features integrate seamlessly into daily operation. The lane departure warning system, following distance indicator, and lane change alert with side blind zone alert work together to enhance awareness. IntelliBeam automatic high-beam technology adapts to traffic conditions, while the 15 diagonal head-up display keeps critical information visible without taking your eyes off the road.

This truck is equally prepared for work and adventure. The 2-speed active transfer case with hill descent control handles challenging off-road conditions. Trailer tire pressure monitor sensors and the integrated trailer brake controller provide peace of mind when towing. The auxiliary trailer camera gives you clear rear visibility during backing maneuvers, while hitch guidance technology simplifies connection procedures. The spray-on bed liner protects your investment during heavy use.

The Duramax diesel engine combines efficiency with substantial torque delivery, making this truck capable of handling demanding loads and towing situations. The 10-speed automatic transmission distributes power effectively across a range of driving conditions. An engine block heater ensures reliable cold-weather starts in harsh climates. The 220-amp alternator provides ample electrical capacity for accessories and charging systems.

With one owner and well under the mileage threshold for vehicles of this age, this Sierra 2500HD Denali presents an excellent opportunity to acquire a premium heavy-duty truck with factory warranty potential remaining. The combination of luxury appointments, advanced technology, and proven diesel power makes this truck a compelling choice for buyers who demand both capability and refinement.

Some of our used vehicles may be subject to unrepaired safety recalls. Check for a vehicle's unrepaired recalls by VIN at https://vinrcl.safercar.gov/vin/