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1620 East Homer Adams Pkwy Alton, IL 62002

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2019 GMC Sierra 2500HD Denali OVERVIEW Overview Icon

2019 GMC Sierra 2500HD Denali in Alton

We engineered the Sierra 2500HD to exceed your performance expectations, pushing it to the limit to deliver the kind of professional grade capability you demand.

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  • Available Duramax Diesel with Allison® Automatic Transmission
  • Vortec 6.0L V-8 Engine
  • Leather-Wrapped Steering Wheel
  • Available Safety Alert Seat
  • Available Front and Rear Park Assist
2019 GMC Sierra 2500HD Denali Main Img

GMC Sierra 2500HD Denali Dealer in Alton

2019 GMC Sierra 2500HD Denali PERFORMANCE Performance Icon

2019 GMC Sierra 2500HD Denali Diesel Hood Scoop Induction System

Available Diesel Hood Scoop Induction System

  • Included with the Duramax Diesel engine that’s available on Sierra Denali HD.
  • Brings a powerful look to the exterior.
  • Helps provide cooler induction air temperatures to maximize horsepower.
2019 GMC Sierra 2500HD Denali Duramax Diesel engine

Powerfully Quiet

Acoustic-treated rocker covers help create our quietest idling Duramax Diesel engine ever offered in a Sierra Denali HD.

2019 GMC Sierra 2500HD Denali Duramax Diesel

Available Duramax Diesel with Allison® Automatic Transmission

Joining forces to make the Duramax 6.6L V-8 Turbo Diesel perform at its peak are its large radiator capacity for excellent cooling, a hood-scoop induction system that provides cooler induction air temperatures to maximize horsepower, and the capable Allison® 1000 6-Speed Automatic Transmission.

2019 GMC Sierra 2500HD Denali APPEARANCE Appearance Icon

Diesel Hood Scoop Induction System 2019 GMC Sierra 2500HD Denali Appearance Main Img
2019 GMC Sierra 2500HD Denali Diesel Hood Scoop Induction System

Diesel Hood Scoop Induction System

Provides cooler induction air temperatures to maximize horsepower on Sierra Denali models equipped with the available Duramax Diesel engine.

2019 GMC Sierra 2500HD Denali COMFORT Comfort Icon

2019 GMC Sierra 2500HD Denali Soft-Touch Instrumental Panel

Soft-Touch Instrumental Panel

Denali is loaded with premium materials such as a soft-touch instrument panel with burnished aluminum trim.

2019 GMC Sierra 2500HD Denali Heated, Leather-Wrapped Steering Wheel

Heated, Leather-Wrapped Steering Wheel

The standard heated, leather-wrapped steering wheel adds a premium touch of warmth.

2019 GMC Sierra 2500HD Denali HD Duramax Diesel

Our Quietest Idling HD Duramax Diesel Ever

Triple door seals, inlaid doors, specialized powertrain mounts and our quietest HD Duramax Diesel ever contribute to the quiet environment of the Sierra Denali HD.

2019 GMC Sierra 2500HD Denali large center console

A Center Console That Means Business

The Sierra Denali HD is ready to get to work with its large center console that provides enough space for hanging files, storing folders or stowing a laptop.

2019 GMC Sierra 2500HD Denali SAFETY & WARRANTY Safety Icon

PRO GRADE PROTECTION

Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:

  • 3-year / 36,000-mile Bumper-to-Bumper Limited Warranty
  • 5-year / 60,000-mile Powertrain Limited Warranty
  • 5-year / 60,000-mile Roadside Assistance & Courtesy Transportation
  • 3-year / 36,000-mile Corrosion Protection
  • 6-year / 100,000-mile Rust-Through Protection
  • First maintenance visit
2019 GMC Sierra 2500HD Denali Safety Main Img
2019 GMC Sierra 2500HD Denali Forward Collision Alert

Forward Collision Alert

If the system detects that a front-end collision situation is imminent while following a detected vehicle, the system alerts the driver to a potential collision. It also alerts the driver if the driver is following a detected vehicle much too closely.

2019 GMC Sierra 2500HD Denali Safety Alert Seat

Safety Alert Seat

The GM-patented Safety Alert Seat provides the driver the option of getting haptic seat-bottom vibration pulses instead of audible crash avoidance alerts.

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