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2026 GMC Sierra 2500HD Denali Ultimate
VIN 1GT4UXEY6TF377978 · Stock TF377978
Details
- Engine
- 6.6L V8 diesel
- Transmission
- 10-speed automatic
- Drivetrain
- 4WD
- Engine
- Duramax 6.6L V8 Turbodiesel
- Body
- 4D Crew Cab
- Exterior
- Glacier White
- Interior
- Alpine Umber
- Fuel
- Diesel
Equipment 146
Packages
- Gooseneck/5th Wheel Prep Package
- Preferred Equipment Group 5SB
- Technology Package
- X31 Off-Road Package
Safety
- Emergency communication system: OnStar
- Lane Departure Warning System
- Security system
- Unauthorized Entry Theft-Deterrent System
21 more
- Automatic Emergency Braking
- Buckle to Drive
- Following Distance Indicator
- Forward Collision Alert
- Front Pedestrian Braking
- HD Surround Vision
- Inside Rearview Auo-Dimming Rear Camera Mirror
- Rear Cross Traffic Alert
- Ultrasonic Front and Rear Park Assist
- Safety Alert Seat
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Brake assist
- Electronic Stability Control
- Panic alarm
Technology
- 12 Speakers
- AM/FM radio: SiriusXM with 360L
- Bose Premium Series 12-Speaker System
- Premium audio system: Premium GMC Infotainment System
15 more
- Radio: AM/FM Stereo with Premium GMC Infotainment System
- SiriusXM with 360L Trial Subscription
- Steering Wheel Audio Controls
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Heads-Up Display
- 2 Charge-Only Rear USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- 2 USB Ports
- Apple CarPlay/Android Auto
- Multicolor 15" Diagonal Head-Up Display
- OnStar Services Capable
- Wireless Charging
- Wireless Phone Projection
- Steering wheel mounted audio controls
Interior
- Automatic temperature control
- Electric Rear-Window Defogger
- Front dual zone A/C
- Rear window defroster
53 more
- Driver Memory
- Memory seat
- Power driver seat
- Push Button Start
- Remote Vehicle Starter System
- Universal Home Remote
- Manual Tilt-Wheel/Telescoping Steering Column
- Keyless Open and Start
- Power moonroof
- Power Sunroof
- LED Cargo Area Lighting
- Auto-dimming Rear-View mirror
- Floor-Mounted Center Console
- Garage door transmitter
- Genuine wood dashboard insert
- Genuine wood door panel insert
- Heated steering wheel
- Leather steering wheel
- Rear reading lights
- Rear seat center armrest
- Voltmeter
- 16-Way Power Driver Seat Adjuster with Lumbar
- 16-Way Power Passenger Seat Adjuster with Lumbar
- Front Center Armrest
- Full Grain Leather Seat Trim
- Heated 2nd Row Outboard Seats
- Heated Driver and Front Outboard Passenger Seats
- Heated front seats
- Heated rear seats
- Power passenger seat
- Ventilated Driver and Front Passenger Seats
- Ventilated front seats
- Power Front Passenger Windows with Express Up/Down
- Power Sliding Rear Window with Defogger
- Air Conditioning
- Power windows
- Remote keyless entry
- Speed control
- Compass
- Driver door bin
- Driver vanity mirror
- Front reading lights
- Illuminated entry
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Front Bucket Seats
- Split folding rear seat
- Passenger door bin
Exterior
- Pickup Box
- Auto High-beam Headlights
- Front fog lights
- Auto-dimming door mirrors
19 more
- Bumpers: body-color
- Front License Plate Kit
- IntelliBeam Automatic High Beam on/Off
- LED Smoked Amber Roof Marker Lamps
- Rear step bumper
- Rear Wheelhouse Liners
- Signature Denali Ultimate Grille in Vadar Chrome
- Spray-on Pickup Bedliner with GMC Logo
- Turn signal indicator mirrors
- Wheels: 20" Ultra-Bright Machined Aluminum
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
- Rain sensing wipers
- Delay-off headlights
- Fully automatic headlights
- Heated door mirrors
- Power door mirrors
- Alloy wheels
- Variably intermittent wipers
Mechanical
- Off-Road Suspension
- Speed-sensing steering
- Front wheel independent suspension
- Hill Descent Control
14 more
- 2-Speed Active Transfer Case
- 220-Amp Alternator
- Block heater
- Dual Heavy-Duty 70 Amp Battery
- Bed View Camera with Two Trailer Camera Provisions
- Trailer Cam Provisions and Trailer Viewing Software
- Trailer Side Blind Zone Alert
- Upfitter Switch Kit (5)
- Hitch Guidance with Hitch View
- in-Vehicle Trailering System App
- Trailer Tire Pressure Monitor Sensors
- 3.42 Axle Ratio
- Power steering
- Front anti-roll bar
From the store
Call us at 512-954-9290
Meet the 2026 GMC Sierra 2500HD Denali Ultimate—a full-size diesel crew cab built for serious capability and premium comfort. With the legendary Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission, this 4WD truck delivers robust performance paired with refined Alpine Umber Leather appointments and a Glacier White Tricoat exterior that commands attention on any job site or highway.
- Duramax 6.6L V8 Turbodiesel with 10-Speed Automatic and 4WD
- Gooseneck/5th Wheel Prep Package for heavy hauling capability
- X31 Off-Road Package with 2-Speed Active Transfer Case and Hill Descent Control
- Bose Premium 12-Speaker Audio with SiriusXM 360L and Wireless Phone Projection
- 15" Diagonal Multicolor Head-Up Display with Hitch Guidance and Trailer Cam
- HD Surround Vision and Bed View Camera with Trailer Viewing Software
- Heated and Ventilated Leather Seats with 16-Way Power Adjustment
- Advanced Safety: Ultrasonic Park Assist, Trailer Side Blind Zone Alert, Safety Alert Seat
- Power Sunroof, Wireless Charging, and Remote Vehicle Starter System
- Spray-On Bedliner with GMC Logo and Signature Denali Vadar Chrome Grille
This Denali Ultimate combines work-ready engineering with luxury appointment. Schedule your test drive today to experience the capability and refinement that sets the Sierra 2500HD apart.
Call us at 512-954-9290 Price includes: $2000 - GMC Bonus Cash. Exp. 11/30/2026
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