Used 2026 GMC Sierra 2500HD AT4X Truck Photo 1 of 1

Used 2026 GMC Sierra 2500HD AT4X Truck

Pre-Owned 2026 Sierra 2500HD AT4X

Diesel

Exterior Color: Sterling Metallic
Interior Color: Obsidian Rush
Odometer: 8,248 miles
Body/Seating: Truck/5 seats
Seats: 5 seats

Transmission: 10-Speed Automatic
Drivetrain: 4WD
Engine: Duramax 6.6L V8 Turbodiesel
VIN: 1GT4UZEY4TF236080
Stock Number: 26DF280A

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

Gooseneck/5th Wheel Prep Package
Hitch Package
12 Speakers
AM/FM radio: SiriusXM with 360L
Premium audio system: Premium GMC Infotainment System
Radio: AM/FM Stereo with 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
Off-Road Suspension
Speed-sensing steering
Traction control
4-Wheel Disc Brakes
ABS brakes
Dual front impact airbags
Dual front side impact airbags
Emergency communication system: OnStar
Front anti-roll bar
Front wheel independent suspension
Low tire pressure warning
Occupant sensing airbag
Overhead airbag
Power moonroof
Pickup Box
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
Speed control
220-Amp Alternator
Engine Block Heater
Exhaust Brake
Heavy-Duty 80 Amp Battery
Auto-dimming door mirrors
Gloss Black Door Handles
Heated door mirrors
IntelliBeam Automatic High Beam on/Off
Power door mirrors
Rear step bumper
Turn signal indicator mirrors
Winter Grille Cover
Apple CarPlay/Android Auto
Auto-dimming Rear-View mirror
Automatic Emergency Braking
Buckle to Drive
Compass
Console-Mounted Safe
Driver door bin
Driver vanity mirror
Following Distance Indicator
Forward Collision Alert
Front Pedestrian Braking
Front reading lights
Garage door transmitter
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
Rear Underseat Storage
Split folding rear seat
Ventilated front seats
Hard Folding Truck Bed Cover
Passenger door bin
Hitch Guidance with Hitch View
in-Vehicle Trailering System App
Alloy wheels
Wheels: 18" Machined Aluminum with High Gloss Black Accents
Rain sensing wipers
Variably intermittent wipers
Preferred Equipment Group 4SG
Bose Premium Series 12-Speaker 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
Push Button Start
Remote Vehicle Starter System
Universal Home Remote
Manual Tilt-Wheel/Telescoping Steering Column
Keyless Open and Start
Power Sunroof
Hill Descent Control
Unauthorized Entry Theft-Deterrent System
2-Speed Active Transfer Case
Gloss Black Header Grille and Grille Insert Bars
LED Cargo Area Lighting
LED Smoked Amber Roof Marker Lamps
Rear Wheelhouse Liners
Spray-on Pickup Bedliner with GMC Logo
2 Charge-Only Rear USB Ports
2 Charge/Data USB Ports Inside Center Console
2 USB Ports
Bed View Camera with Two Trailer Camera Provisions
Floor-Mounted Center Console
Front Premium Floor Liners with Removable Carpet Insert
HD Surround Vision
Inside Rearview Auo-Dimming Rear Camera Mirror
Multicolor 15" Diagonal Head-Up Display
OnStar Services Capable
Rear Cross Traffic Alert
Rear Premium Floor Liners with Removable Carpet Insert
Trailer Cam Provisions and Trailer Viewing Software
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
Safety Alert Seat
Ventilated Driver and Front Passenger Seats
Trailer Tire Pressure Monitor Sensors
Deep-Tinted Glass
Front Rain-Sensing Wipers
Power Front Passenger Windows with Express Up/Down
Power Sliding Rear Window with Defogger

Included Options

Gooseneck/5th Wheel Prep Package$545
Hitch Package$375
220-Amp Alternator$150

Engine Block Heater$100
Console-Mounted Safe$350
Rear Underseat Storage$325
Hard Folding Truck Bed Cover$1,495

Convenience Features

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
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: HD Surround Vision w/Hitch View yes
Telescoping steering wheel
Tilt steering wheel

Suspension/Handling

Alloy wheels
Front anti-roll bar
Front tires: 305/70RR18.0E
Front wheel independent suspension
Power steering
Rear tires: 305/70RR18.0E
Single rear wheels
Speed-sensing steering
Wheel size: 18"

Entertainment Features

1st row LCD monitors: 2
Premium audio system: Premium GMC Infotainment System
Primary LCD size: 13.4"
Smart device integration: Apple CarPlay/Android Auto
Speaker type: Bose Performance Series
Speakers: 12
Steering wheel mounted audio controls
Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
Wireless Phone Charger: front
Wireless phone connectivity: Bluetooth

Seats and Trim

Front center armrest
Front seats: bucket
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

Powertrain

Cylinder configuration: V-8
Drive type: four-wheel
Electric motor 1 torque: none
Electric motor horsepower: none
Engine liters: 6.6L
Engine location: front
Fuel tank capacity: 36.0gal.
Hybrid electric powertrain type: none
Hybrid system combined power torque: none
Hybrid system net power: none
Hybrid traction battery type: none
Manual-shift auto
Mode select transmission
Rear locking differential
Transmission: 10 speed automatic
Variable valve control

Off-Road Capability

Departure angle: 26 deg

Body Exterior

Auto-dimming door mirrors
Bedliner
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

Specs and Dimensions

Engine displacement: 6.6 L
Exterior body width: 2,079mm (81.8")
Exterior height: 2,100mm (82.7")
Front headroom: 1,013mm (39.9")
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: 7.9m (25.9')
Wheelbase: 4,039mm (159.0")

Lighting, Visibility and Instrumentation

Appearance: digital/analog
Auto high-beam headlights
Blind spot: Trailer Side Blind Zone Alert warning
Compass
Configurable
Delay-off headlights
Exterior parking camera cargo
Exterior parking camera front
Exterior parking camera left
Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
Exterior parking camera right
Front fog lights
Front reading lights
Fully automatic headlights
Heads up display
Lane departure: Lane Departure Warning warning
Low tire pressure warning
Oil pressure gauge
Outside temperature display
Parking sensors: UltraSonic front and rear
Rain sensing wipers
Rear reading lights
Rear window defroster
Tachometer
Trip computer
Variably intermittent wipers
Voltmeter

Safety and Security

4 wheel disc brakes
ABS brakes
Brake assist
Dual front impact airbags
Dual front side impact airbags
Electronic stability
Forward collision: Forward Collision Alert with Automatic Braking mitigation
Front pedestrian detection: prevention
Ignition disable
Occupant sensing airbag
Overhead airbag
Panic alarm
Perimeter/approach lights
Rear collision: Rear Cross-Traffic Alert warning
Security system
Traction control

Preferred Equipment Group 4SG

Front Bucket Seats

Meet the 2026 GMC Sierra 2500HD AT4Xâ"a powerfully equipped diesel truck ready for serious work and weekend adventures. With its commanding silver finish, premium Obsidian Rush leather interior, and all-wheel capability, this crew cab demands attention on every road. Engineered with the Duramax 6.6L V8 Turbodiesel engine and backed by serious off-road pedigree, the AT4X delivers the durability and capability you've been seeking.

- Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission
- Gooseneck/5th wheel prep package for complete towing versatility
- Hard folding truck bed cover by RealTruck Advantage
- Premium GMC Infotainment system with Apple CarPlay and Android Auto
- Multicolor 15" head-up display with driver-focused controls
- Off-road suspension with 2-speed active transfer case
- Heated leather seats (front and rear) with power adjustability and lumbar support
- HD surround vision camera system with multiple trailer camera provisions
- Console-mounted safe for secure storage
- Ultrasonic front and rear parking assist with trailer side blind zone alert

Don't let this opportunity passâ"this AT4X combines luxury, capability, and advanced technology in one impressive package. Visit our dealership today to experience the power and refinement of this exceptional Sierra 2500HD.

* The advertised price does not include sales tax, vehicle registration fees, other fees required by law, finance charges and any documentation charges.

* Vehicle shown is for illustrative purposes. Actual vehicle image and details may differ. Vehicle in transit.

Market Price: $85,995
Doc Fee¹: $699
Retailer Selling Price: $86,694

*Price includes Doc fee of $699.

*Price includes Doc fee of $699.

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