Mitchell Buick-GMC · San Angelo, TX

2026 GMC Sierra 2500 HD AT4

1 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 2500 HD

TrimAT4

VIN1GT4UPEY6TF433708

Stock numberH260818

Mileage1 miles

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorSterling Metallic

Towing18500

Vehicle description

KEY FEATURES INCLUDE 10-Way Power Driver Seat Adjuster with Lumbar - Includes Driver seat direction: Driver seat with 8-way directional controls,Driver lumbar: Driver seat with 2-way power lumbar,Power driver seat controls: Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control, 11,350 lbs (5,148 Kg) GVWR, 220-Amp Alternator - Includes Alternator Type: Alternator, 3 Years SiriusXM - Includes Satellite trial: 36 month satellite trial subscription,Radio: AM/FM/SiriusXMsatellite, 3.42 Axle Ratio, 50-STATE EMISSIONS, 5th Wheel and Gooseneck Trailer Wiring Provisions, AM/FM Stereo with Premium GMC Infotainment System - Includes Voice activated audio: Voice activated audio controls,Wireless streaming: Bluetooth® wireless audio streaming,Primary display size: 13.4 inch primary display,Primary display touchscreen: Primary monitor touchscreen,Handsfree: Bluetooth® handsfree wireless device connectivity, AT4 PREFERRED PACKAGE - Includes Power Sliding Rear Window with Defogger,Rear windshield: Power rear windshield,LED ROOF MARKER LAMPS,Universal Home Remote, AT4 PREMIUM PLUS PREFERRED PACKAGE * UNIVERSAL HOME REMOTE * POWER SLIDING REAR WINDOW * LED ROOF MARKER LAMPS POWER SUNROOF TECHNOLOGY PACKAGE * REAR CAMERA MIRROR * MULTI-COLOR HEAD UP DISPLAY AT4 HIGH CLEARANCE STEP (DEALER INSTALLED) - Includes POWER SUNROOF,First-row sunroof: First-row sliding and tilting glass sunroof with power 1-touch activation sunshade,OFF-ROAD HIGH CLEARANCE STEPS (DEALER INSTALLED),TECHNOLOGY PACKAGE,MULTI-COLOR HEAD UP DISPLAY,Head up display: Head-up display,Speedometer: Redundant digital speedometer,Inside Rearview Auo-Dimming Rear Camera Mirror,Rearview mirror: Auto-dimming rear view mirror,Video rearview mirror: Video-feed rearview mirror, DRIVER MEMORY, SEATS AND MIRRORS, Duramax 6.6L Turbo-Diesel V8 Engine - Includes Capped Fuel Fill,10-Speed Automatic Transmission,Transmission: Allison 10-speed automatic,Overdrive transmission,Lock-up transmission,Transmission Type: Automatic,Dual Heavy-Duty 70 Amp Battery,Battery type: Dual lead acid batteries,Battery run down protection,Accessory power: Retained accessory power,Engine Location: Front mounted engine,Fuel Type: Diesel,Ignition: Compression ignition system,Engine Mounting direction: Longitudinal mounted engine,Engine block material: Iron engine block,Cylinder head material: Aluminum cylinder head,DEF fluid gauge: Diesel exhaust fluid (def) gauge,Low level warnings: Low level warning for oil, coolant, fuel, washer fluid, brake fluid and diesel exhaust fluid (DEF),Engine: Duramax 6.6L V-8 direct injection, intercooled turbo, diesel, engine with 470HP,Engine Short: Duramax 6.6L V-8,Engine Configuration: Duramax V8,Compressor: Intercooled turbo, Engine Block Heater, EXHAUST BRAKE, Front Bucket Seats - Includes 10-Way Power Passenger Seat Adjuster with Lumbar,Passenger seat direction: Front passenger seat with 8-way directional controls,Front passenger lumbar: Front passenger seat with 2-way power lumbar,Power passenger seat controls: Passenger seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control, Front License Plate Kit, HIGH GLOSS BLACK ALUMINUM WHEELS, LT275/65R20E 126/123 Off-Road T/A KO3 Tires - Includes Tires: LT275/65SR20 AT BSW front and rear tires, Pickup Box, Preferred Equipment Group 4SB - Includes LED Cargo Area Lighting,TRAILER SIDE BLIND ZONE ALERT,SiriusXM with 360L Trial Subscription,REMOTE VEHICLE START,Keyfob remote start,Smart device remote start,SAFETY ALERT SEAT,Ultrasonic Front and Rear Park Assist,TRAILER CAMERA PROVISIONS,Electric Rear-Window Defogger,Floor-Mounted Center Console,Beverage holders: Front beverage holders,Floor console: Full floor console,Floor console storage: Covered floor console storage,Armrests front center: Front seat center armrest,Gloss Black Header Grille and Grille Insert Bars,Unauthorized Entry Theft-Deterrent

Features & options (250)

Adaptive Cruise Control
Bluetooth®
Heated Steering Wheel
Remote Start
4WD/AWD
Android Auto
Apple CarPlay
Keyless Ignition System
Leather Seats
Wi-Fi Hotspot
Auto Dimming Mirror
Emergency Brake Assist
Lane Departure Warning
Sunroof/Moonroof
Wireless Phone Charging
Blind Spot Monitor
Forward Collision Warning
Navigation System
Parking Assistance
Rear View Camera
Tow Hitch/Tow Package
Automatic Climate Control
Entertainment System
Turbo Charged Engine
Premium Sound System
SiriusXM Trial Subscription
Wireless phone projection
For Apple CarPlay and Android Auto
Wi-Fi Hotspot capable
May require additional optional equipment
13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth® streaming audio for music and select phones
Wireless Apple CarPlay capability for compatible phones
Wireless Android Auto capability for compatible phones
Customize and manage entertainment and vehicle feature setting
Voice-activated technology for phone
SiriusXM with 360L Trial Subscription
Place and receive hands-free phone calls
3 Years SiriusXM
Enjoy channels curated by DJs, personalities, and tastemakers
Side Bed Step
Black textured step pads help provide secure footing
Deep-tinted glass
Provides added protection from sun and glare
Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
Body-color door handles
Rainsense automatic wipers
Spray-on bedliner
Includes GMC logo on all trims except PRO
20" high gloss Black aluminum wheels
18" LT275/70R18 all-terrain, blackwall spare tire
Cargo bed LED lighting
Provides light to find cargo in the bed
Black beltline moldings
Cab-mounted cargo area lamps
Activated by switch located on center switch bank
Illuminates the cargo bed area
Spare tire carrier lock
Helps keep spare tire secure
Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
Chrome mirror caps
AT4 and AT4X features high gloss Black mirror caps
Power folding/extending
Lower convex mirrors
Heated upper glass
Integrated turn signal indicators
Puddle lamps
Perimeter lighting
Auxiliary lighting
Extends 3.31-inches
High gloss Black mirror caps
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
Body-color front bumper
IntelliBeam
Cargo tie-downs
12-fixed rated at 500 lbs. per corner
Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
LED taillamps with LED stop lights and animation
Rear wheelhouse liners
Tailgate with EZ Lift assist, power lock & release
Hitch area lighting
Tailgate and bed rail protection caps
GMC MultiPro Tailgate
Power lock and release
CornerStep rear bumper
Located at each end of the rear bumper
Textured step pads to help provide secure footing
LED fog lamps
Body-color rear bumper
With integrated CornerSteps
Winter Grille Cover
Off-Road High Clearance Steps
Textured step pads help provide secure footing
20" LT275/65R20 BF Goodrich off-road T/A K blackwall tires
Power sunroof
Retracts into the roof
Offers tilt and slide features with express-open and -close
Front license plate bracket
Sterling Metallic
Smoked Amber LED roof marker lamps
Roof-mounted lamps near the front of the cab
Carpeted floor covering
Color-keyed to match the interior
Rear air vents
Provides cabin comfort for rear occupants
You can always override the feature and take control
120-volt power outlet
3-prong auxiliary household-style outlet
Located on the instrument panel
Rear Seat Reminder
Ventilated driver and front passenger seats
Individually controlled
Cooling feature includes both seatbacks and cushions
Driver memory
Power windows with driver and front passenger express-up/down
If obstruction is detected, the anti-pinch feature will auto-reverse
Theft-deterrent unauthorized entry system
Helps deter unauthorized entry, helping to protect your vehicle
USB ports
(2) Data/charge ports located inside center console
Keyless Open and Start
Lockout protection helps you avoid locking keys in the vehicle
Power door locks
10-way power driver seat with power lumbar
Includes 8-way power driver seat
Includes a 2-way power lumbar control
Premium front floor liners with removable carpet insert
12.3" diagonal color Driver Information Center
High definition display provides crisp, premium appearance
Assist handles
Front A-pillar mounted for Driver and Passenger
Rear B-pillar mounted
Front bucket seats
(2) Charge ports located on rear of console
Steering-wheel mounted controls
Power windows with driver express-up/down
Dual-zone automatic climate control
Allows individual climate settings for both driver and front passenger
Wireless Charging
Uses induction technology for select portable electronic devices
Convenient charging location
Compass
Located in instrument cluster
10-way power front passenger seat
Includes 8-way power front passenger seat
Premium rear floor liners with removable carpet insert
(2) First row, located on console
Inside rearview auto-dimming mirror
Seat trim, Perforated front Leather
Up-level rear seat with storage package
60/40 Full-length folding bench seat
Seatback storage on left and right side
Center fold out armrest with 2 cupholders
Underseat storage (full cab width)
Power windows with rear express-down
120-volt box-mounted power outlet
Located in the pickup bed
Wrapped steering wheel
Manual tilt and telescoping steering column
Rear window defogger
Outside temperature display
Located in infotainment display
Front center console
Heated rear outboard seats
Passengers can manage heat settings with their own controls
Heated driver and front outboard passenger seats
Head-Up Display
Multi-color 15" diagonal Head-Up Display
Adjustable vertical position and brightness of the display
Universal Home Remote
3-channel programmable
Jet Black with Kalahari accents, Perforated Front Leather seat trim
Rear Camera Mirror
The feature also allows brightness, vertical tilt and zoom adjustments
1-Year MobileService+
Power sliding rear window with rear defogger
4-wheel antilock disc brakes
Heavy-Duty Air Filter
Hill Descent Control
Uses antilock braking to help provide a smooth, controlled descent
Activates by pushing a button below the instrument panel
Off-Road suspension
Brake pad wear indicator
Fully boxed frame
Hydroformed front section
High-strength steel
Push Button Start
Automatic locking rear differential
Red vertical recovery hooks
Two front frame-mounted
Pickup bed
Roll-formed high-strength steel
Includes bed assist step
Digital Variable Steering Assist
Skid plates
Help protect the front underbody, oil pan and transfer case
In-Vehicle Trailering App
Checklist
Trailer maintenance reminders
Trailer security alerts
Trailer mileage
Tow/haul reminder
Trailer electrical diagnostics
Four wheel drive
Autotrac 2-speed transfer case with push button controls
4-button control 2WD, Auto, 4WD, 4WD LO
2WD High for most on-road and highway situations
Automatically engages 4WD until traction is regained
Integrated trailer brake controller
Integrated with the antilock brake system (ABS)
Heavy-duty dual batteries with 1460 cold-cranking amps
70 Amp-hr
Maintenance-free with rundown protection and retained accessory power
Trailering wiring provisions for camper, 5th wheel and gooseneck trailer
For trailering fifth-wheel and gooseneck trailers
11,350 lbs. GVWR
220-amp alternator
Emissions, Federal requirements
ProGrade Trailering System
Hitch Guidance with Hitch View
X31 Off-Road Package
Twin-tube Rancho shocks
Trailering Package
Trailer hitch
Trailering hitch platform
Hitch Guidance
Sierra HD Pro Safety
Forward Collision Alert
Following Distance Indicator
Front Pedestrian Braking
Buckle to Drive
Automatic Emergency Braking
AT4 Preferred Package
Rear sliding power window
LED roof marker lamps
AT4 Preferred Equipment Group includes standard equipment
AT4 Premium Plus Package
Technology Package
AT4 high clearance step
AT4 Preferred Package on AT4
Option/package discount
LED Daytime Running Lamps
Signature LED Daytime Running Lamps
Trailering Information Label
6 airbags
Dual-stage frontal airbags for driver and front outboard passenger
Head-curtain airbags for outboard seating positions
Seat Belt Adjustable Guide Loops
Front row only
HD Surround Vision

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 250 miles of San Angelo, Texas

Asking price$81,368Dealer asking price · 1 mi

Market value$80,755Market value · based on 71 comparable cars

vs. market Fair price+0.8%Fair price · based on 71 comparable cars

Where this price sits

In the typical middle range · 41% of 71 similar listings ask more than this car.

Market value $80,755

This car$81,368

$71,900lowest$91,829highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$613 above the market value of $80,755

Price range

$71,900$91,829

42nd lowest price of 72 similar listings within 250 milesTick marks the market value · range of 71 similar listings

AutosXchange Insights

Compared with 71 new 2026 GMC Sierra 2500 AT4 listings within 250 mi.
Priced $613 above the market value of 71 comparable cars — compare options, condition and history.
42nd lowest price of 72 similar listings within 250 miles.
About 1 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # H260818 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 8, 2026. No price change at this dealership since Nov 8 ($81,368).0 price changes at this dealership: $81,368 → $81,368.

AutosXchange Intel Hub: Price changes for this model in Texas · This model in the Intel Hub · Market movers in Texas

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 11); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2026 Sierra 2500 AT4 · new · within 250 miles of San Angelo, Texas. Showing the 12 nearest of 71 comparable cars for sale, nearest first.

Stock photo

7 photos