This 2026 GMC Sierra 3500HD Denali Ultimate represents capability and refinement in a single platform, engineered for those who demand both power and luxury in their heavy-duty truck.
- Duramax 6.6L V8 Turbodiesel Engine with 10-Speed Automatic and 4WD
- Gooseneck/5th Wheel Prep Package with hitch platform and 7-pin trailer harness
- Dual Alternators (220-Amps Primary, 170-Amps Auxiliary)
- ProGrade Trailering System with in-vehicle app and trailer tire pressure monitoring
- Signature Denali Ultimate Grille in Vader Chrome with LED smoked amber roof markers
- Bose Premium Series 12-Speaker System with SiriusXM 360L and wireless phone projection
- Multicolor 15-inch Head-Up Display and 13.4-inch GMC Premium Information Display
- HD Surround Vision with bed view camera and trailer camera provisions
- Hitch Guidance with hitch view and trailer side blind zone alert
- 16-way power front seats with heating, ventilation, and lumbar support
- Heated power rear window with defogger and power sunroof
- Heated steering wheel with memory settings
- Spray-on pickup bedliner with GMC logo
- 120-volt bed-mounted and instrument panel power outlets with wireless charging
- Auto-dimming mirrors with front rain-sensing and delay-off headlights
This truck combines workhorse capability with refined appointments. The diesel engine delivers dependable performance across demanding applications, while the heavy-duty transmission manages load and terrain with confidence. The gooseneck and fifth-wheel preparation package positions this truck for serious towing operations without compromise.
Inside, the Denali Ultimate trim surrounds you with full-grain leather seating, dual-zone automatic climate control with heated and ventilated seats, and genuine wood accents throughout. Connectivity remains seamless with wireless phone projection, multiple USB ports with charging capability, and the comprehensive GMC Infotainment System paired with the Bose audio system.
Advanced driver assistance features provide awareness and control. The surround vision camera system, trailer side blind zone alerts, and ultrasonic park assist help you navigate confidently whether managing tight spaces or repositioning loaded trailers. The Safety Alert Seat adds another layer of awareness during operation.
Your investment carries the assurance that comes with Denali Ultimate statusâ"meticulous attention to detail in every system and surface. With only 1816 miles of use, this truck remains essentially fresh, preserving the clarity and responsiveness of every mechanical and electronic component.
We invite you to visit our showroom to sit behind the wheel and experience how this Sierra 3500HD Denali Ultimate aligns with your expectations. Let us walk you through the comprehensive capabilities and refinements that make this truck the choice for those who refuse to compromise on either power or presence.
Used 2026 GMCSierra 3500HD Denali Ultimate
- Diesel
- Exterior Color
- Sterling Metallic
- Interior Color
- Alpine Umber
- Odometer
- 1,816 miles
- Body/Seating
- Truck/5 seats
- Seats
- 5 seats
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
- Engine
- Duramax 6.6L V8 Turbodiesel
- VIN
- 1GT4UYEY6TF127596
- Stock Number
- 7763
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Power moonroof
- Premium audio system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
Included Packages & Accessories
- Gooseneck/5th Wheel Prep Package
- 12 Speakers
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Air Conditioning
- Automatic temperature control
- Front dual zone A/C
- Rear window defroster
- Heads-Up Display
- Memory seat
- Power driver seat
- 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
- Emergency communication system: OnStar Services capable
- Front anti-roll bar
- Front wheel independent suspension
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Power moonroof
- 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
- Block heater
- Dual 220-Amps Primary and 170-Amps Auxiliary Alternators
- Dual Heavy-Duty 70 Amp-Hour Battery
- Auto-dimming door mirrors
- Bumpers: body-color
- Heated door mirrors
- IntelliBeam Automatic High Beam on/Off
- Power door mirrors
- Rear step bumper
- Turn signal indicator mirrors
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- 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
- Heated steering wheel
- Illuminated entry
- Leather steering wheel
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- Front Center Armrest
- Full Grain Leather Seat Trim
- Heated front seats
- Heated rear seats
- Power passenger seat
- Split folding rear seat
- Ventilated front seats
- Passenger door bin
- Alloy wheels
- Rain sensing wipers
- Variably intermittent wipers
- 3.42 Rear Axle Ratio
- Preferred Equipment Group 5SB
- Technology Package
- Bose Premium Series 12-Speaker System
- Radio: AM/FM Stereo with Premium GMC Infotainment System
- SiriusXM with 360L Trial Subscription
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- Power Front Windows with Passenger Express Up/Down
- Push Button Start
- Remote Vehicle Starter System
- Universal Home Remote
- Manual Tilt-Wheel/Telescoping Steering Column
- Keyless Open and Start
- Power Sunroof
- Unauthorized Entry Theft-Deterrent System
- 2-Speed Active Transfer Case
- LED Cargo Area Lighting
- LED Smoked Amber Roof Marker Lamps
- ProGrade Trailering System
- Signature Denali Ultimate Grille in Vader Chrome
- Spray-on Pickup Bedliner with GMC Logo
- 2 Charge-Only Rear USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- 2 USB Ports
- Auto-Dimming Inside Rearview Mirror with Camera
- Bed View Camera with Two Trailer Camera Provisions
- Floor-Mounted Center Console
- GMC Premium 13.4" Diagonal Information Display
- HD Surround Vision
- Multicolor 15" Diagonal Head-Up Display
- Rear Cross Traffic Alert
- Safety Alert Seat
- Trailer Camera Provisions
- Trailer Side Blind Zone Alert
- Ultrasonic Front and Rear Park Assist
- Wireless Charging
- Wireless Phone Projection
- 16-Way Power Driver Seat Adjuster with Lumbar
- 16-Way Power Passenger Seat Adjuster with Lumbar
- Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Heated Driver and Front Outboard Passenger Seats
- Ventilated Driver and Front Passenger Seats
- Hitch Guidance with Hitch View
- in-Vehicle Trailering App
- Trailer Tire Pressure Monitor Sensors
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
- Power Sliding Rear Window with Defogger
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
- Emergency communication system: OnStar Services capable
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Moonroof sunshade: manual
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power moonroof
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start
- 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
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 13.4"
- Smart device integration
- Speaker type: brand
- Speakers: 12
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- 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 steering wheel
- Leather upholstery
- Max seating capacity: 5
- Power 4-way driver lumbar support
- Power 4-way passenger lumbar support
- 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
- Block heater
- Compressor: intercooled turbo
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Horsepower: 470hp @ 2,800RPM
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 32
- Rear locking differential
- Recommended fuel: Diesel
- Standard fuel economy fuel type: diesel
- Torque: 975 lb.-ft. @ 1,600RPM
- Transmission: 10 speed automatic
- Ground clearance (min): 283mm (11.1")
- 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
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 16.00 to 1
- Curb weight: 3,810kg (8,399lbs)
- Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
- Engine displacement: 6.6 L
- Engine torque: 975 lb.-ft. @ 1,600RPM
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,062mm (81.2")
- Exterior length: 6,776mm (266.8")
- 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")
- GVWR: 5,557kg (12,250lbs)
- Payload: 1,713kg (3,777lbs)
- 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")
- Towing capacity: 9,072kg (20,000lbs)
- Turning radius: 8.7m (28.5')
- Wheelbase: 4,369mm (172.0")
- 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
- Heads up display
- 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
- Safety Alert Seat
- Rear Cross Traffic Alert
- Trailer Side Blind Zone Alert
- Wireless Phone Projection
- Bose Premium Series 12-Speaker System
- SiriusXM with 360L Trial Subscription
- Floor-Mounted Center Console
- Electric Rear-Window Defogger
- Push Button Start
- Remote Vehicle Starter System
- Keyless Open and Start
- 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
- Bed View Camera with Two Trailer Camera Provisions
- Spray-on Pickup Bedliner with GMC Logo
- Trailer Camera Provisions
- Heated Driver and Front Outboard Passenger Seats
- Ventilated Driver and Front Passenger Seats
- Heated 2nd Row Outboard Seats
- Deep-Tinted Glass
- Signature Denali Ultimate Grille in Vader Chrome
- Steering Wheel Audio Controls
- LED Smoked Amber Roof Marker Lamps
- Manual Tilt-Wheel/Telescoping Steering Column
- LED Cargo Area Lighting
- Power Sunroof
- Unauthorized Entry Theft-Deterrent System
- Universal Home Remote
- Power Sliding Rear Window with Defogger
- Power Front Windows with Passenger Express Up/Down
- Wireless Charging
- Ultrasonic Front and Rear Park Assist
- Front Rain-Sensing Wipers
- ProGrade Trailering System
- Trailer Tire Pressure Monitor Sensors
- 2-Speed Active Transfer Case
- 16-Way Power Driver Seat Adjuster with Lumbar
- 16-Way Power Passenger Seat Adjuster with Lumbar
- Driver Memory
- Hitch Guidance with Hitch View
- in-Vehicle Trailering App
- Auto-Dimming Inside Rearview Mirror with Camera
- Multicolor 15" Diagonal Head-Up Display
- GMC Premium 13.4" Diagonal Information Display
Dealer Notes
* MSRP is the Manufacturer's Suggested Retail Price (MSRP) of the vehicle. It does not include any taxes, fees or other charges. Pricing and availability may vary based on a variety of factors, including options, dealer, specials, fees, and financing qualifications. Consult your dealer for actual price and complete details.* You may not qualify for the offers, incentives, discounts, or financing. Offers, incentives, discounts, or financing are subject to expiration and other restrictions. See dealer for qualifications and complete details.* 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.* In transit means that vehicles have been built, but have not yet arrived at your dealer. Images shown may not necessarily represent identical vehicles in transit to your dealership. See your dealer for actual price, payments and complete details.*Dealer additions to vehicles may apply, and may not be included in online prices. Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. This site, and all information and materials appearing on it, are presented to the user "as is" without warranty of any kind, either express or implied. All vehicles are subject to prior sale.*Price does not include applicable tax, title, license, processing and/or documentation fees, and destination charges. Vehicles shown at different locations are not currently in our inventory (not in stock) but can be made available to you at our location within a reasonable date from the time of your request, not to exceed one week. MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the “Fuel Economy” portion of the EPA’s website for details, including a MPG recalculation tool).