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

VIN1GT4UNE76TF407055

Stock numberG7537

BodyPickup

Engine6.6L 8-cyl

Cylinders8

Displacement6.6L

Horsepower401

TransmissionAutomatic

Drivetrain4WD

FuelGasoline

ExteriorVolcanic Red Tintcoat

InteriorJet Black, Perforated Leather-appointed front outb

Doors4

Towing16000

Vehicle description

Vehicle Details Command the road in this 2026 GMC Sierra 2500 SLT 4WD, a heavy-duty truck built for drivers who demand strength, refinement, and confidence. Powered by a robust V8, 6.6L Gasoline engine, this GMC Sierra delivers the capability you want for towing, hauling, and tackling tough Wyoming terrain with ease. Inside, the SLT trim surrounds you with premium comfort and smart technology, making every drive in Casper WY feel elevated. Enjoy convenient features like a Back-Up Camera for easier parking and trailering, Automatic Climate Control for personalized comfort, Apple CarPlay for seamless smartphone integration, Remote Start for added convenience in cold mornings, and a Heated Steering Wheel that keeps you comfortable when temperatures drop. This 2026 GMC Sierra 2500 SLT blends rugged durability with upscale style, offering the bold presence, spacious cabin, and advanced features that make it a standout choice in the heavy-duty segment. Whether you're heading to the jobsite, the ranch, or across town, the 4WD system gives you added traction and peace of mind in changing road conditions. If you're searching for a powerful GMC Sierra 2500 for sale in Casper WY, this truck is ready to impress. Experience the capability, comfort, and confidence that define the GMC Sierra 2500 SLT. From its commanding stance to its proven heavy-duty engineering, this GMC Sierra is an excellent choice for work and weekend adventure alike, with premium design details throughout everywhere you drive. Equipment It comes equipped with Android Auto for seamless smartphone integration on the road. Bluetooth technology is built into this GMC Sierra, keeping your hands on the steering wheel and your focus on the road. Never get into a cold vehicle again with the remote start feature on this GMC Sierra. This 2026 GMC Sierra 2500's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. The leather seats in this 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. The steering wheel audio controls on the vehicle keep the volume and station within easy reach. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this model. Anywhere on the planet, you will have hundreds of digital stations to choose from. Packages 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; Wireless Phone Projection; 120-Volt Instrument Panel Power Outlet; Front 40/20/40 Split-Bench Seats; Heated Driver and Front Outboard Passenger Seats; 2 Charge/data USB Ports; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports; OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; Power Front Passenger Windows with Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; 6.6L V8 with Direct Injection and Variable Valve Timing Engine; 6-Speaker Audio System Feature; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Rear Wheelhouse Liners. Assist Step and Floor Liner Package: All-Weather Floor Liners. Gooseneck/5th Wheel Prep Package. 6" Rectangular Chr

Features & options (127)

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
6-speaker audio system
Bluetooth
SiriusXM with 360L Trial Subscription
Wi-Fi Hotspot capable
Wireless phone projection
18" LT275/70R18 all-terrain, blackwall spare tire
18" LT275/70R18E all-terrain, blackwall tires
18" machined aluminum wheels with Dark Grey metallic accents
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
Assist handle, side
Cab-mounted cargo area lamps
Cargo bed LED lighting
Cargo tie-downs
Cargo tie-downs (set of 4)
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
GMC MultiPro Tailgate
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
Spare tire carrier lock
Spray-on bedliner
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
40/20/40 split-bench front seat with under-seat storage
All-weather floor liners
Assist handles
Carpeted floor covering
Compass
Cruise control
Driver memory
Dual-zone automatic climate control
Front carpeted floor mats
Heated driver and front outboard passenger 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 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
Up-level rear seat with storage package
Wrapped steering wheel
10-speed automatic transmission
11,050 lbs. GVWR
220-amp alternator
3.73 rear axle ratio
4-wheel antilock disc brakes
6.6L V8 Gas engine
Air filtration monitoring
Automatic locking rear differential
Auxiliary 700 cold-cranking amps battery
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
In-Vehicle Trailering App
Integrated trailer brake controller
Suspension Package
LED Daytime Running Lamps
Signature LED Daytime Running Lamps
6 airbags
Buckle to Drive
Following Distance Indicator
Forward Collision Alert
HD Rear Vision Camera
Hitch Guidance
Hitch View
Lane Departure Warning
OnStar Basics
OnStar services capable
Rear Seat Belt Indicator
Seat Belt Adjustable Guide Loops
Teen Driver
Tire Pressure Monitoring System with Tire Fill Alert
Trailering Information Label
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
Assist Step and Floor Liner Package
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$69,300Dealer asking price

Market value$73,235Market value · based on 9 comparable cars

vs. market Good deal-5.4%Good deal · based on 9 comparable cars

Where this price sits

Among the lowest-priced · 100% of 9 similar listings ask more than this car.

Market value $73,235

This car$69,300

$69,300lowest$80,047highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Good deal$3,935 below the market value of $73,235

Price range

$69,300$80,047

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 $3,935 below the market value of 9 comparable cars.
Lowest price of 10 similar listings within 250 miles.
Stock # G7537 — 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 ($69,300).0 price changes at this dealership: $69,300 → $69,300.

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 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 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

Fair price

24 photos