This 2021 GMC Sierra 3500HD Denali represents a premium heavy-duty truck built for those who demand capability and refinement in equal measure.

• Duramax 6.6L V8 Turbodiesel with 445 hp and 910 lb-ft of torque
• 10-Speed Automatic transmission with 4WD
• Denali Ultimate Package with Technology Package and power sunroof
• Gooseneck/5th Wheel Prep Package for serious towing applications
• Trailer Tire Pressure Monitor Sensors with in-vehicle monitoring
• ProGrade Trailering System with integrated trailer brake controller
• Power-retractable assist steps with LED perimeter lighting
• Dual 220-amp primary and 170-amp auxiliary alternators
• Engine block heater for reliable cold-weather starts
• HD Surround Vision with 2 trailer camera provisions and bed view camera
• Bose Premium 7-speaker sound system with SiriusXM 360L
• 15-inch diagonal head-up display with multicolor graphics
• Wireless phone projection and 4G LTE Wi-Fi hotspot capable
• Heated and ventilated front seats with 10-way power adjustment
• Spray-on pickup bed liner with Denali logo

The Denali Ultimate Package elevates this truck beyond standard offerings, combining luxury appointments with serious work capability. The 6.6L Duramax diesel engine delivers substantial torque from 1,600 rpm, making this truck responsive whether you're daily driving or towing heavy loads. The 10-speed automatic transmission provides smooth power delivery across the entire range of operation.

Technology integration throughout the cabin keeps you connected and informed. The premium GMC infotainment system includes navigation, Apple CarPlay, Android Auto wireless phone projection, and OnStar capabilities. The surround vision camera system with trailer view provisions delivers confidence when maneuvering in tight spaces or backing up trailers.

Trailering features are comprehensive. The integrated trailer brake controller works seamlessly with the truck's handling characteristics, while the trailer tire pressure monitoring system keeps you aware of trailer wheel conditions during long hauls. The gooseneck and fifth-wheel prep package provides the infrastructure for heavy-duty towing applications without aftermarket modifications.

Interior comfort matches the truck's capability. Heated and ventilated leather-appointed seats with lumbar support reduce fatigue on long drives. Dual-zone automatic climate control, heated steering wheel, and memory seat functions personalize the driving experience for regular operators.

Safety systems address both on-road and off-road scenarios. Lane departure warning, forward collision alert, automatic emergency braking, and rear cross traffic alert provide active protection. The terrain management system includes hill descent control, optimizing performance in challenging driving conditions.

This Sierra 3500HD Denali delivers the diesel power and trailering capacity professional users expect, wrapped in Denali luxury and comprehensive technology. Schedule your visit to see this capable truck in person.

Options:

Navigation System

Denali Ultimate Package

Driver Alert Package I

Driver Alert Package II

Gooseneck/5th Wheel Prep Package

Preferred Equipment Group 5SA

Technology Package

X31 Off-Road 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

Off-Road Suspension

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

Hill Descent Control

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

Dual 220-Amps Primary/170-Amps Aux Alternators

Engine Block Heater

Exhaust Brake

Heavy-Duty 80 Amp Battery

6" Rectangular Chromed Tubular Assist Steps

Auto-dimming door mirrors

Bumpers: body-color

Front License Plate Kit

Heated door mirrors

IntelliBeam Automatic High Beam On/Off

LED Cargo Area Lighting

Polished Exhaust Tip

Power door mirrors

Power-Retractable Assist Steps

ProGrade Trailering System

Rear step bumper

Rear Wheelhouse Liners

Signature Denali Grille w/High Gloss Black Mesh

Spray-On Pickup Bed Liner w/Denali Logo

Turn signal indicator mirrors

Winter Grille Cover

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

Trailer Tire Pressure Monitor Sensors

Alloy wheels

Wheels: 20" Multi-Dimensional Polished Aluminum

Deep-Tinted Glass

Power Sliding Rear Window w/Defogger

Variably intermittent wipers