2021 GMC Sierra 3500 HD Crew Cab

Denali Pickup 4D 8 ft

87,313 miles

This vehicle is no longer available

Why You’ll Love This Sierra 3500

Standing at the top of the Sierra 3500 HD Crew Cab lineup, the Denali elevates everyday capability with ventilated front seats, a Bose Premium 7-Speaker Sound System with Subwoofer, and the ProGrade Trailering System with an in‑vehicle trailering app plus Hitch Guidance with Hitch View for confident hookups and hauls.

Maximum diesel towing

Delivers immense 20,000 lbs towing capacity and 4,365 lbs payload through a powerful 6.6L Duramax Turbo-Diesel V8 engine producing 445 HP and 910 lb-ft, paired with an Allison 10-speed automatic transmission and a 4WD system with a 2-speed transfer case, further enhanced by an exhaust brake for controlled descents.

Bose premium sound system

Delivers rich, clear audio throughout the cabin with a Bose premium 7-speaker sound system, including a dedicated subwoofer for enhanced bass.

Ventilated front seats

Circulates air through the seat cushions, providing cooling comfort during warmer weather.

Premium leather seating

Provides a luxurious and comfortable interior with premium leather seating surfaces.

Smartphone integration

Connects your compatible smartphone for seamless access to navigation, music and apps through Apple CarPlay and Android Auto.

Wireless charging

Keeps compatible devices powered without the need for cables, offering convenience on the go.

ProGrade trailering system

Simplifies towing with an in-vehicle trailering app and Hitch Guidance with Hitch View, providing tools to manage and monitor your trailer.

Lane change alert with side blind zone alert

Monitors blind spots and provides visual and audible warnings to help prevent collisions during lane changes.

Forward collision alert

Warns of potential front-end collisions and includes a following distance indicator, safety alert seat and IntelliBeam automatic high beams for enhanced awareness.

Integrated trailer brake controller

Provides seamless and responsive control of trailer brakes directly from the vehicle, enhancing safety and stability when towing.

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