CASPER GMC CADILLAC · Casper, WY

2026 GMC Sierra 2500 HD SLT

0 miles · truck

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PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 2500 HD

TrimSLT

VIN1GT4UNE71TF421395

Stock numberG7548

BodyPickup

Engine6.6L 8-cyl

Cylinders8

Displacement6.6L

Horsepower401

TransmissionAutomatic

Drivetrain4WD

FuelGasoline

ExteriorTitanium Rush Metallic

InteriorDark Walnut/Slate, Perforated Leather-appointed fr

Doors4

Towing16000

Vehicle description

Vehicle Details Experience rugged capability and modern comfort in this 2026 GMC Sierra 2500 SLT 4WD, powered by a commanding V8, 6.6L Gasoline engine. Built for drivers who demand serious strength, this heavy-duty pickup delivers impressive performance for towing, hauling, jobsite use, and everyday driving across Wyoming. If you are searching for a dependable GMC Sierra 2500 for sale in Casper, WY, this SLT is ready to impress. Inside, the cabin blends premium refinement with smart technology. Enjoy seamless smartphone integration with Apple CarPlay, stay entertained with XM Radio, and drive with added confidence thanks to Adaptive Cruise Control, a Back-Up Camera, and Lane Departure Warning. These advanced features work together to make every trip safer, more connected, and more enjoyable. The bold exterior design stands out with unmistakable GMC styling, while 4WD gives you the traction and control you want for changing road conditions, rough terrain, and seasonal weather. Whether you need a powerful work truck or a versatile daily driver, the GMC Sierra 2500 SLT delivers the capability and comfort you expect from a top-tier heavy-duty pickup. Located in Casper, WY, this 2026 GMC Sierra 2500 SLT is an excellent choice for shoppers seeking strength, technology, and premium truck appeal in one impressive package. Equipment This GMC Sierra has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. This model offers Android Auto for seamless smartphone integration. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this 3/4 ton pickup. Anywhere on the planet, you will have hundreds of digital stations to choose from. The GMC Sierra features a hands-free Bluetooth phone system. See what's behind you with the back up camera on this 3/4 ton pickup. This vehicle features a high end BOSE stereo system. The vehicle's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The vehicle offers Apple CarPlay for seamless connectivity. The leather seats in this 3/4 ton pickup are a must for buyers looking for comfort, durability, and style. The steering wheel audio controls on this unit keep the volume and station within easy reach. Never get into a cold vehicle again with the remote start feature on this vehicle. Packages SLT Convenience Package: Ventilated Driver and Front Passenger Seats; Bose Premium 7-Speaker Sound System; 2 Charge/data USB Ports Inside Center Console; LED Smoked Amber Roof Marker Lamps; Wireless Charging; Front Bucket Seats. X31 Off-Road and Protection Package: 20" Bright Face Wheels with Dark Painted Pockets; LT275/65R20 AT BW Tires; Spray-On Pickup Bedliner with GMC Logo; All-Weather Floor Liners. X31 Off-Road Package: Off-Road Suspension; Hill Descent Control; Skid Plates. Sierra HD Pro Safety Plus Package: HD Surround Vision; Trailer Side Blind Zone Alert; Rear Cross Traffic Alert; Ultrasonic Front and Rear Park Assist; Safety Alert Seat; Trailer Cam Provisions and Trailer Viewing Software; Bed View Camera with Two Trailer Camera Provisions. Preferred Equipment Group 4SA: LED Cargo Area Lighting; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Electric Rear-Window Defogger; Chrome Surround Grille with Chrome Insert Bars; Unauthorized Entry Theft-Deterrent System; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wi

Features & options (181)

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
Bluetooth
Bose Premium Sound System
SiriusXM with 360L Trial Subscription
Wi-Fi Hotspot capable
Wireless phone projection
18" LT275/70R18 all-terrain, blackwall spare tire
20" Bright face wheels with dark painted pockets
20" LT275/65R20 all-terrain, blackwall tires
6" Chrome assist steps
Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
Cab-mounted cargo area lamps
Cargo bed LED lighting
Cargo tie-downs
Chrome beltline moldings
Chrome door handles
Chrome front bumper
Chrome mirror caps
Chrome rear bumper
CornerStep rear bumper
Deep-tinted glass
Front license plate bracket
IntelliBeam
LED fog lamps
Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
Rainsense automatic wipers
Rear wheelhouse liners
Side Bed Step
Smoked Amber LED roof marker lamps
Spare tire carrier lock
Spray-on bedliner
Standard tailgate
Tailgate and bed rail protection caps
Tailgate with EZ Lift assist, power lock & release
10-way power driver seat with power lumbar
10-way power front passenger seat
12.3" diagonal color Driver Information Center
120-volt box-mounted power outlet
120-volt power outlet
Adaptive Cruise Control
All-weather floor liners
Assist handles
Carpeted floor covering
Compass
Driver memory
Dual-zone automatic climate control
Front bucket seats
Front carpeted floor mats
Front center console
Heated driver and front outboard passenger seats
Heated rear outboard seats
Heated steering wheel
Inside rearview auto-dimming mirror
Keyless Open and Start
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
Rear Seat Reminder
Rear air vents
Rear carpeted floor mats
Rear window defogger
Remote Start
Steering-wheel mounted controls
Theft-deterrent unauthorized entry system
USB ports
Universal Home Remote
Up-level rear seat with storage package
Ventilated driver and front passenger seats
Wireless Charging
Wrapped steering wheel
10,850 lbs. GVWR
10-speed automatic transmission
170-amp alternator
3.73 rear axle ratio
4-wheel antilock disc brakes
6.6L V8 Gas engine
Air filtration monitoring
Automatic locking rear differential
Autotrac 2-speed transfer case with push button controls
Brake pad wear indicator
Capless fuel fill
Digital Variable Steering Assist
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
Hill Descent Control
In-Vehicle Trailering App
Integrated trailer brake controller
Off-Road suspension
Pickup bed
Push Button Start
Skid plates
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
Trailering Information Label
Trailering camera provisions
Automatic Emergency Braking
Front Pedestrian Braking
StabiliTrak, electronic stability control system with traction control
Assist Step and Floor Liner Package:
Gooseneck Hitch Package:
Gooseneck ball
Chain tiedown kit with case
May require additional optional equipment
ProGrade Trailering System:
Hitch Guidance with Hitch View
SLT Convenience Package:
Bucket seats
Center console
Ventilated front seats
USB ports in center console
LED roof marker lamps
Bose Premium Sound System with Richbass woofer
SLT Preferred Package:
Power rear sliding window
Sierra HD Pro Safety:
Sierra HD Pro Safety Plus Package:
Bed View Camera (Crew Cab and Double Cab models)
HD Surround Vision (Crew Cab and Double Cab models)
Trailer Camera Provisions (Crew Cab and Double Cab models)
Rear Park Assist on SLE models
In Vehicle Trailering App on SLE models
Safety Alert Seat on SLT
Trailering Package:
Trailer hitch
Trailering hitch platform
X31 Off-Road Package:
Twin-tube Rancho shocks
X31 hard badge
X31 Off-Road and Protection Package:
Off-Road suspension with Twin-tube Rancho shocks
Skid plates (transfer case and oil pan)
X31 badge (replaces "4X4" badge on bed)
Assist Step and Floor Liner Package
Gooseneck Hitch Package
ProGrade Trailering System
SLT Convenience Package
SLT Preferred Package
Sierra HD Pro Safety
Sierra HD Pro Safety Plus Package
Trailering Package
X31 Off-Road Package
X31 Off-Road and Protection Package
In-vehicle Trailering App
Front and rear park assist

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$73,235Dealer asking price

Market value$73,220Market value · based on 9 comparable cars

vs. market Fair price0.0%Fair price · based on 9 comparable cars

Where this price sits

In the typical middle range · 44% of 9 similar listings ask more than this car.

Market value $73,220

This car$73,235

$69,300lowest$80,047highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$15 above the market value of $73,220

Price range

$69,300$80,047

6th lowest price of 10 similar listings within 250 milesTick marks the market value · range of 9 similar listings

AutosXchange Insights

Compared with 9 new 2026 GMC Sierra 2500 SLT listings within 250 mi.
Priced $15 above the market value of 9 comparable cars — compare options, condition and history.
6th lowest price of 10 similar listings within 250 miles.
Stock # G7548 — 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 ($73,235).

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 SLT · new · within 250 miles of Casper, Wyoming. All 9 comparable cars for sale, nearest first.

2026 GMC Sierra 2500 HD SLT for sale at CASPER GMC CADILLAC in Casper, WY

Good deal

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