CASPER GMC CADILLAC · Casper, WY

2026 GMC Sierra 2500 HD AT4X

0 miles · truck

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PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 2500 HD

TrimAT4X

VIN1GT4UZE76TF407676

Stock numberG7538

BodyPickup

Engine6.6L 8-cyl

Cylinders8

Displacement6.6L

Horsepower401

TransmissionAutomatic

Drivetrain4WD

FuelGasoline

ExteriorSterling Metallic

InteriorObsidian Rush, Full Grain Leather seat trim

Doors4

Towing16000

Vehicle description

Vehicle Details Take command of rugged capability and premium comfort in this 2026 GMC Sierra 2500 AT4X 4WD, now available in Casper, WY. Built for drivers who demand serious strength, this heavy-duty pickup is powered by a robust V8, 6.6L gasoline engine designed to handle towing, hauling, and demanding work with confidence. The AT4X trim adds off-road-ready attitude, advanced engineering, and a refined cabin that makes every mile more rewarding. Inside, you'll find leather seats, hands free Bluetooth, Android Auto, and XM Radio, giving you seamless connectivity and everyday convenience. Adaptive Cruise Control helps make longer drives easier, while the elevated driving position and premium materials create a first-class experience whether you're on the jobsite or heading out for the weekend. With bold GMC styling, 4WD capability, and the strength expected from a GMC Sierra 2500, this truck is ready for Wyoming roads and beyond. Whether you need a powerful GMC truck for work, recreation, or towing, this GMC Sierra 2500 AT4X stands out in the Casper, WY heavy-duty truck market right now. If you're searching for a dependable heavy-duty truck in Casper, WY, this 2026 GMC Sierra 2500 AT4X deserves a closer look. Contact us today to schedule a test drive and experience the capability, comfort, and technology this impressive pickup has to offer. Equipment This 2026 GMC Sierra 2500 is equipped with the latest generation of XM/Sirius Radio. Never get into a cold vehicle again with the remote start feature on this unit. The leather seats in the GMC Sierra are a must for buyers looking for comfort, durability, and style. See what's behind you with the back up camera on this GMC Sierra. It is pure luxury with a heated steering wheel. This GMC Sierra features a high end BOSE stereo system. This 2026 GMC Sierra 2500's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. This model features a hands-free Bluetooth phone system. This 2026 GMC Sierra 2500 has auto-adjust speed for safe following. The steering wheel audio controls on this unit keep the volume and station within easy reach. This vehicle comes equipped with Android Auto for seamless smartphone integration on the road. An off-road package is installed on it so you are ready for your four-wheeling best. Packages Preferred Equipment Group 4SG: Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Inside Rearview Auo-Dimming Rear Camera Mirror; Front Rain-Sensing Wipers; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Rear Premium Floor Liners with Removable Carpet Insert; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Multicolor 15" Diagonal Head-Up Display; Keyless Open and Start; Bose Premium Series 12-Speaker System; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System

Features & options (150)

Basic
Corrosion
Maintenance
Roadside Assistance
Max seating capacity
Fuel System
Fuel tank capacity
Horsepower
Towing capacity
13.4" diagonal GMC Premium Infotainment System with Google built-in
3 Years SiriusXM
Bluetooth
Bose Premium Series with 12-speaker system with CenterPoint
MultiPro Audio System by Kicker
SiriusXM with 360L Trial Subscription
Wi-Fi Hotspot capable
Wireless phone projection
18" LT305/70R18 MT spare tire
18" LT305/70R18 MT tires
18" machined aluminum wheel with High Gloss Black accents
Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
Assist handle, side
Black beltline moldings
Black lug nut and wheel lock kit
Black power-retractable assist steps with LED perimeter lighting
Body-color door handles
Body-color front bumper
Body-color rear bumper
Cab-mounted cargo area lamps
Cargo bed LED lighting
Cargo tie-downs
Cargo tie-downs (set of 4)
CornerStep rear bumper
Deep-tinted glass
Front license plate bracket
GMC MultiPro Tailgate
GMC MultiPro tailgate Step Lights
High gloss Black mirror caps
IntelliBeam
LED fog lamps
Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
Power sunroof
Rainsense automatic wipers
Rear wheelhouse liners
Side Bed Step
Smoked Amber LED roof marker lamps
Spare tire carrier lock
Spray-on bedliner
Tailgate and bed rail protection caps
Tailgate with EZ Lift assist, power lock & release
12.3" diagonal color Driver Information Center
120-volt box-mounted power outlet
120-volt power outlet
16-way power driver seat with power lumbar and massage
16-way power passenger seat with power lumbar and massage
Adaptive Cruise Control
Assist handles
Carpeted floor covering
Compass
Driver memory
Dual-zone automatic climate control
Front bucket seats
Front center console
Head-Up Display
Heated driver and front outboard passenger seats
Heated rear outboard seats
Heated steering wheel
Keyless Open and Start
Leather-wrapped steering wheel
Manual tilt and telescoping steering column
Outside temperature display
Power door locks
Power sliding rear window with rear defogger
Power windows with driver and front passenger express-up/down
Power windows with driver express-up/down
Power windows with rear express-down
Premium front floor liners with removable carpet insert
Premium rear floor liners with removable carpet insert
Rear Camera Mirror
Rear Seat Reminder
Rear air vents
Rear window defogger
Remote Start
Sport pedal cover set
Steering-wheel mounted controls
Theft-deterrent unauthorized entry system
USB ports
Universal Home Remote
Up-level rear seat with storage package
Upfitter switches
Ventilated driver and front passenger seats
Wireless Charging
10-speed automatic transmission
11,025 lbs. GVWR
3.73 rear axle ratio
4-wheel antilock disc brakes
6.6L V8 Gas engine
Air filtration monitoring
Autotrac 2-speed transfer case with push button controls
Auxiliary 700 cold-cranking amps battery
Brake pad wear indicator
Capless fuel fill
Digital Variable Steering Assist
Driver-selectable e-locking rear differential
Dual, 220 amp primary and 170 auxiliary amp alternators
Engine block heater
External auxiliary transmission oil cooler
External engine oil cooler
Fully boxed frame
Gooseneck / 5th Wheel Prep Package
Heavy-Duty Air Filter
Heavy-duty 720 cold-cranking amps battery
High idle switch
In-Vehicle Trailering App
Integrated trailer brake controller
Off-Road suspension with 1.5" factory installed lift and Multimatic DSSV dampers
Red vertical recovery hooks
LED Daytime Running Lamps
Signature LED Daytime Running Lamps
6 airbags
Bed View Camera
Buckle to Drive
Following Distance Indicator
Forward Collision Alert
Front and Rear Park Assist
HD Surround Vision
Hitch Guidance
Hitch View
Lane Departure Warning
OnStar Basics
OnStar services capable
Rear Cross Traffic Alert
Rear Seat Belt Indicator
Safety Alert Seat
Seat Belt Adjustable Guide Loops
Teen Driver
Tire Pressure Monitoring System with Tire Fill Alert
Trailer Side Blind Zone Alert
Trailer Tire Pressure and Temperature Sensors
Trailering Information Label
Trailering camera provisions
Automatic Emergency Braking
Front Pedestrian Braking
StabiliTrak, electronic stability control system with traction control
Gooseneck Hitch Package:
Gooseneck ball
Chain tiedown kit with case
May require additional optional equipment
Gooseneck Hitch Package

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 Casper, Wyoming

Asking price$89,424Dealer asking price

Market value$97,224Market value · based on 11 comparable cars

vs. market Good deal-8.0%Good deal · based on 11 comparable cars

Where this price sits

Among the lowest-priced · 91% of 11 similar listings ask more than this car.

Market value $97,224

This car$89,424

$87,375lowest$103,279highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Good deal$7,800 below the market value of $97,224

Price range

$87,375$103,279

2nd lowest price of 12 similar listings within 250 milesTick marks the market value · range of 11 similar listings

AutosXchange Insights

Compared with 11 new 2026 GMC Sierra 2500 AT4X listings within 250 mi.
Priced $7,800 below the market value of 11 comparable cars.
2nd lowest price of 12 similar listings within 250 miles.
Stock # G7538 — 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 ($89,424).

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); 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 AT4X · new · within 250 miles of Casper, Wyoming. All 11 comparable cars for sale, nearest first.

2026 GMC Sierra 2500 HD AT4X for sale at Loveland Buick GMC in Loveland, CO

Good deal

15 photos