Discover the pinnacle of capability and luxury with the 2025 GMC Sierra 3500HD Denali. This remarkable heavy-duty truck is a true force to be reckoned with, blending uncompromising performance with a refined and sophisticated interior that will elevate your driving experience.
Boasting an impressive array of premium features, this Sierra 3500HD Denali is equipped to handle any task with ease. Key highlights include:
⢠Navigation System
⢠Sunroof / Moonroof
⢠Blind Spot Monitor
⢠Apple CarPlay / Android Auto
⢠Lane Keeping Assistance
⢠Adaptive Cruise Control
⢠Cross Traffic Alert
⢠Power Leather Seats
⢠Heated Seats
⢠Backup Camera
⢠Bluetooth
⢠Cruise Control
⢠Power Windows
⢠Power Locks
⢠Steering Wheel Radio Controls
⢠Aluminum Wheels
⢠Running Boards / Side Steps
Under the hood, the Sierra 3500HD Denali is powered by the legendary Duramax 6.6L V8 Turbodiesel engine, delivering an astounding 470 horsepower and an incredible 975 lb-ft of torque. Paired with a smooth-shifting 10-speed automatic transmission and a capable 4-wheel-drive system, this truck is ready to take on any terrain or towing challenge with unparalleled confidence.
Stepping inside, you'll be greeted by a cabin that exudes sophistication and attention to detail. The Denali Reserve Package adds premium features like a power sunroof, a Bose premium sound system, and a 15-inch head-up display, ensuring a truly immersive driving experience. The heated and ventilated front seats, along with the heated rear outboard seats, provide unmatched comfort, while the wireless charging and ample USB ports keep your devices powered and connected.
Safety is also a top priority in the Sierra 3500HD Denali, with advanced features like Automatic Emergency Braking, Forward Collision Alert, Lane Departure Warning, and Rear Cross Traffic Alert keeping you and your passengers secure on the road.
Whether you're tackling tough jobs, embarking on off-road adventures, or simply seeking a refined and capable daily driver, the 2025 GMC Sierra 3500HD Denali is the perfect choice. Experience the pinnacle of power, technology, and luxury by visiting our showroom today. We're confident this exceptional truck will exceed your expectations and leave a lasting impression.
Used 2025 GMCSierra 3500 HD Denali Truck Crew Cab
- Diesel
- Exterior Color
- Onyx Black
- Interior Color
- Atmosphere/Brownstone
- Odometer
- 11,497 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT4UWEY1SF264657
- Stock Number
- STK264657
GMC
Sierra 3500 HD
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
- Front dual zone A/C
- Auto high-beam headlights
- Rain sensing wipers
Included Packages & Accessories
- 7 Speakers
- AM/FM radio: SiriusXM with 360L
- Radio: AM/FM w/Premium GMC Infotainment System
- SiriusXM w/360L Trial Subscription
- Air Conditioning
- Automatic temperature control
- Front dual zone A/C
- Rear window defroster
- Memory seat
- Power driver seat
- Power Front Windows w/Passenger Express Up/Down
- Power steering
- Power windows
- Remote keyless entry
- Steering wheel mounted audio controls
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Front anti-roll bar
- Front wheel independent suspension
- Keyless Open & Start
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Pickup Bed
- Brake assist
- Electronic Stability Control
- Lane Departure Warning System
- Exterior Parking Camera Rear
- Auto High-beam Headlights
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Speed control
- 220 Amp Alternator
- Engine Block Heater
- Exhaust Brake
- Heavy-Duty 80 Amp-Hr Battery
- High Idle Switch
- Auto-dimming door mirrors
- Bumpers: body-color
- Heated door mirrors
- IntelliBeam Automatic High Beam On/Off
- Power door mirrors
- Power-Retractable Assist Steps
- Rear step bumper
- Spray-On Pickup Bedliner w/GMC Logo
- Turn signal indicator mirrors
- Winter Grille Cover
- Auto-Dimming Inside Rearview Mirror w/Camera
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- Bed View Camera w/2 Trailer Camera Provisions
- Buckle to Drive
- Compass
- Driver door bin
- Driver vanity mirror
- Following Distance Indicator
- Forward Collision Alert
- Front Pedestrian Braking
- Front reading lights
- Garage door transmitter
- Genuine wood dashboard insert
- Genuine wood door panel insert
- GMC Premium 13.4" Diagonal Information Display
- Heated steering wheel
- Illuminated entry
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Ultrasonic Front & Rear Park Assist
- Voltmeter
- 12-Way Power Driver Seat Adjuster w/Lumbar
- 12-Way Power Passenger Seat Adjuster w/Lumbar
- Forge Perforated Leather Seat Trim
- 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
- Hitch Guidance w/Hitch View
- Alloy wheels
- Wheels: 20" Ultra-Bright Machined
- Power Sliding Rear Window w/Defogger
- Rain sensing wipers
- Variably intermittent wipers
- 3.42 Rear Axle Ratio
- 3.73 Rear Axle Ratio
- Navigation System
- Sunroof / Moonroof
- Blind Spot Monitor
- Apple CarPlay / Android Auto
- Lane Keeping Assistance
- Adaptive Cruise Control
- Cross Traffic Alert
- Power Leather Seats
- Heated Seats
- Backup Camera
- Bluetooth
- Cruise Control
- Power Windows
- Power Locks
- Steering Wheels Radio Controls
- Aluminum Wheels
- Running Boards / Side Steps
- Denali Reserve Package
- Preferred Equipment Group 5SA
- Technology Package
- X31 Off-Road Package
- Bose Premium 7-Speaker Sound System
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- Push Button Start
- Remote Vehicle Starter System
- Universal Home Remote
- Manual Tilt-Wheel/Telescoping Steering Column
- Off-Road Suspension
- Power Sunroof
- Hill Descent Control
- Unauthorized Entry Theft-Deterrent System
- 2-Speed Active Transfer Case
- LED Cargo Area Lighting
- LED Smoked Amber Roof Marker Lamps
- Polished Exhaust Tip
- Rear Wheelhouse Liners
- Signature Chrome Denali Grille
- 2 Charge-Only Rear USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- 2 USB Ports
- Floor-Mounted Center Console
- HD Surround Vision
- Multicolor 15" Diagonal Head-Up Display
- Rear Cross Traffic Alert
- Safety Alert Seat
- Trailer Camera Provisions
- Trailer Side Blind Zone Alert
- Wireless Charging
- Wireless Phone Projection
- Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
Included Packages & Options
- Denali Reserve Package$1,835
- Technology Package
- Power Sunroof
- Technology Package$1,340
- Multicolor 15" Diagonal Head-Up Display
Included Options
- 220 Amp Alternator$150
- Engine Block Heater$100
- High Idle Switch$200
- Power-Retractable Assist Steps$1,500
Standard Specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote keyless entry
- Speed control
- Surround View Monitor
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front tires: 275/65SR20.0E
- Front wheel independent suspension
- Power steering
- Rear tires: 275/65SR20.0E
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- Wheel size: 20"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 13.4"
- Smart device integration
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Wireless Phone Charger: front
- Wireless phone connectivity
- Front center armrest
- Front seats: bucket
- Genuine wood dashboard insert
- Genuine wood door panel insert
- Heated front seats
- Heated rear seats
- Leather upholstery
- Massaging driver lumbar support
- Massaging passenger lumbar support
- Max seating capacity: 5
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: gasoline
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 284mm (11.2")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Door mirrors: chrome
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Tailpipe finisher: polished
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Engine displacement: 6.6 L
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,054mm (80.9")
- Exterior length: 6,369mm (250.8")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,039mm (159.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Blind spot: warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: front and rear
- Rain sensing wipers
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: warning
- Security system
- Traction control
Standard Features
- Technology Package
- Power Sunroof
- Multicolor 15" Diagonal Head-Up Display
- Safety Alert Seat
- Rear Cross Traffic Alert
- Trailer Side Blind Zone Alert
- Wireless Phone Projection
- Bose Premium 7-Speaker Sound System
- Floor-Mounted Center Console
- Electric Rear-Window Defogger
- Push Button Start
- Remote Vehicle Starter System
- 120-Volt Instrument Panel Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 2 Charge-Only Rear USB Ports
- 2 USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- HD Surround Vision
- Trailer Camera Provisions
- Heated 2nd Row Outboard Seats
- Deep-Tinted Glass
- Signature Chrome Denali Grille
- Steering Wheel Audio Controls
- LED Smoked Amber Roof Marker Lamps
- Manual Tilt-Wheel/Telescoping Steering Column
- LED Cargo Area Lighting
- Unauthorized Entry Theft-Deterrent System
- Universal Home Remote
- Wireless Charging
- Rear Wheelhouse Liners
- Front Rain-Sensing Wipers
- Polished Exhaust Tip
- X31 Off-Road Package
- 2-Speed Active Transfer Case
- Driver Memory
- Hill Descent Control
- Off-Road Suspension
Dealer Notes
KBB.com Consumer Reviews

Overall4.2Out of 5
- 5.0
2020 GMC Denali 3500 HD Duramax is a BEAST!
By Merlinsmerc | on Friday, January 22, 2021
Pulling a conventional 10,000 lb trailer over mountain passes is a whole new experience. Staying at the speed limit up long steep grades did not change the engine temperature. I feathered the accelerator up the mountain. The new 10 speed transmission is so smooth you cant feel it changing gears. This is my second GMC Denali Duramax, first being a 2016. I debated trading in for over a year, and am so happy I made the trade. Trailers always exceed by far the tongue weight posted on them, and in my case it came in at 1450 lbs. That exceeded my trucks posted maximum. The 2020 dually posts a 2,000 lb tongue weight, so now I can front load the trailer, and that reduces sway. If you can afford it, and have a heavy trailer, buy the truck!… - 5.0
Love our truck
By Ron | on Friday, December 11, 2020
The truck doesn’t have a sun roof which it was suppose to have… - 2.0
In shop for 13 weeks so far!
By Whip | on Monday, September 09, 2024
My truck has been in the shop for 13 weeks to this point with no end in sight. The Infotainment panel blew out which controls pretty much everything. Nice truck except if something goes wrong then, good luck! I would recommend looking at Fords and Rams and ask the question, how many vehicles do you have in your shop waiting for parts and for how long. I heard of one at my GMC dealership that has been waiting for 8 months! Only thing I get from GM is "we understand your frustration". Apparently they don't, or I would have my truck back long ago.…
Based on 6 consumer ratings for 2020–2026 models. | Privacy
* The advertised price does not include sales tax, vehicle registration fees, other fees required by law, finance charges and any documentation charges.
* Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.
* Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.
- Sticker
- $81,977
- Imperial Discount
- -$3,130
- Buy For*
- $78,847
- We're here to help: 800-526-AUTO
- We're here to help: 800-526-AUTO


