Introducing the 2021 GMC Sierra 3500HD Denali, a true workhorse built to tackle any challenge with uncompromising power and refined luxury. This exceptional vehicle is more than just a pickup – it's a testament to engineering excellence and a symbol of unparalleled capability.

• Duramax 6.6L V8 Turbodiesel engine delivering an impressive 445 horsepower and an astounding 910 lb-ft of torque
• Denali Ultimate Package with cutting-edge technology and premium features
• Power-retractable assist steps with LED perimeter lighting
• Gooseneck/5th Wheel Prep Package for effortless towing
• Wired auxiliary trailer camera for enhanced visibility
• High idle switch for improved performance during idling
• 220-amp alternator for reliable power delivery

The Sierra 3500HD Denali is engineered to conquer any terrain and any task with ease. Its robust Duramax diesel engine, paired with a smooth-shifting 10-speed automatic transmission and advanced 4WD system, provides the ultimate in power and control. Whether you're hauling heavy loads, towing a substantial trailer, or navigating challenging off-road conditions, this vehicle is up for the challenge.

Beyond its remarkable capabilities, the Sierra 3500HD Denali also pampers you with uncompromising luxury and state-of-the-art technology. The Denali Ultimate Package includes a stunning power sunroof, the premium GMC Infotainment System with navigation, a premium Bose audio system, and a suite of advanced driver assistance features to keep you safe and connected on the road.

Comfort and convenience are also at the forefront, with heated and ventilated front seats, a heated steering wheel, and a power-sliding rear window with a defogger. The spacious and well-appointed cabin offers ample room for passengers and cargo, ensuring that every journey is a pleasure.

The 2021 GMC Sierra 3500HD Denali is a true masterpiece of engineering, combining unparalleled capability with refined luxury. If you're in the market for a heavy-duty pickup that can handle any task with ease while providing an exceptional driving experience, this is the vehicle for you. Experience the power and prestige of the Sierra 3500HD Denali today.

Options:

Navigation System

Denali Ultimate Package

Driver Alert Package I

Driver Alert Package II

Gooseneck/5th Wheel Prep Package

Technology Package

7 Speakers

AM/FM radio: SiriusXM with 360L

Bose Premium 7 Speaker Sound System

HD Radio

Premium audio system: Premium GMC Infotainment System

Radio: AM/FM w/Prem GMC Infotainment System & Navi

SiriusXM w/360L

Steering Wheel Audio Controls

Air Conditioning

Automatic temperature control

Electric Rear-Window Defogger

Front dual zone A/C

Rear window defroster

12-Volt Rear Auxiliary Power Outlet

120-Volt Bed Mounted Power Outlet

120-Volt Instrument Panel Power Outlet

Driver Memory

Memory seat

Power driver seat

Power Front Passenger Windows w/Express Up/Down

Power Front Windows w/Driver Express Up/Down

Power Rear Windows w/Express Down

Power steering

Power windows

Remote keyless entry

Remote Vehicle Starter System

Steering wheel mounted audio controls

Universal Home Remote

Manual Tilt-Wheel/Telescoping Steering Column

Speed-sensing steering

Traction control

4-Wheel Disc Brakes

ABS brakes

Dual front impact airbags

Dual front side impact airbags

Electrical Lock Control Steering Column

Front anti-roll bar

Front wheel independent suspension

Keyless Open & Start

Low tire pressure warning

Occupant sensing airbag

Overhead airbag

Power Door Locks

Power Sunroof

Pickup Bed

Brake assist

Electronic Stability Control

Lane Departure Warning System

Auto High-beam Headlights

Delay-off headlights

Front fog lights

Fully automatic headlights

Panic alarm

Security system

Unauthorized Entry Theft-Deterrent System

Speed control

2-Speed Active Transfer Case

Heavy-Duty 80 Amp Battery

6" Rectangular Chromed Tubular Assist Steps

Auto-dimming door mirrors

Bumpers: body-color

Heated door mirrors

IntelliBeam Automatic High Beam On/Off

LED Cargo Area Lighting

Polished Exhaust Tip

Power door mirrors

ProGrade Trailering System

Rear step bumper

Signature Denali Grille w/High Gloss Black Mesh

Spray-On Pickup Bed Liner w/Denali Logo

Turn signal indicator mirrors

2 USB Ports (First Row)

2 USB Ports Inside Console

2nd Row Dual USB Charge-Only Ports

4G LTE Wi-Fi Hotspot Capable

Apple CarPlay/Android Auto

Auto-Dimming Inside Rearview Mirror w/Camera

Auto-dimming Rear-View mirror

Automatic Emergency Braking

Bed View Camera w/2 Trailer Camera Provisions

Compass

Compass Located In Instrument Cluster

Driver door bin

Driver vanity mirror

Floor-Mounted Center Console

Following Distance Indicator

Forward Collision Alert

Front reading lights

Garage door transmitter

Genuine wood console insert

Genuine wood door panel insert

GMC Connected Access Capable

HD Rear Vision Camera

HD Surround Vision w/2 Trailer View Camera Provisions

Heated steering wheel

Illuminated entry

Lane Change Alert w/Side Blind Zone Alert

Multicolor 15" Diagonal Head-Up Display

OnStar & GMC Connected Services Capable

Outside temperature display

Overhead console

Passenger vanity mirror

Rear Cross Traffic Alert

Rear reading lights

Rear seat center armrest

Safety Alert Seat

Tachometer

Telescoping steering wheel

Tilt steering wheel

Trip computer

Ultrasonic Front & Rear Park Assist

Voltmeter

Wireless Charging

Wireless Phone Projection

10-Way Power Driver Seat Adjuster w/Lumbar

10-Way Power Passenger Seat Adjuster w/Lumbar

2nd Row Heated Outboard Seats

Forge Perforated Leather-Appointed Seat Trim

Front Bucket Seats

Front Center Armrest

Heated Driver & Front Outboard Passenger Seats

Heated front seats

Heated rear seats

Power passenger seat

Split folding rear seat

Ventilated Driver & Front Passenger Seats

Ventilated front seats

Passenger door bin

Chrome Recovery Hooks

Hitch Guidance w/Hitch View

In-Vehicle Trailering System App

Integrated Trailer Brake Controller

Alloy wheels

Deep-Tinted Glass

Power Sliding Rear Window w/Defogger

Variably intermittent wipers

3.73 Rear Axle Ratio

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