Hart Chevrolet · Dalhart, TX

2026 GMC Sierra 2500 HD SLT

29,260 miles · truck

1 / 25 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 2500 HD

TrimSLT

VIN1GT4UNEY5TF113493

Stock number3493U

Mileage29,260 miles

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorSummit White

Towing18500

Vehicle description

When you live and work in the Texas Panhandle, having the right truck can make all the difference. This 2026 GMC Sierra 2500 SLT with the 6.6L Duramax Turbo Diesel is the kind of pickup that is ready to put in a full day's work while keeping you comfortable along the way. With just one previous owner and a clean Carfax report, this heavy duty GMC is an excellent find at Hart Chevrolet GMC in Dalhart, Texas! Under the hood, the 6.6L Duramax Turbo Diesel delivers the serious torque and pulling power that diesel truck owners love. Whether you are hauling cattle, pulling a trailer loaded with equipment, moving supplies around the farm, or heading out for a long day on the ranch, this Sierra 2500 has the strength to tackle demanding jobs. Around here, we know that a good diesel truck is more than just transportation. It is a tool you depend on to get things done. The SLT trim gives you a great balance of rugged capability and everyday luxury. Step inside and you will find a comfortable, refined interior with premium touches and modern technology that make those long days behind the wheel much more enjoyable. It is a truck that feels right at home on a dusty ranch road but cleans up nicely when it is time to head into town for dinner. From Dalhart to Hartley, Stratford, Dumas, and Amarillo, we put plenty of highway miles on our trucks here in the Panhandle. Whether you are traveling for work, pulling a camper toward the mountains of Colorado, or heading across New Mexico or Oklahoma, this Sierra is built to make the journey feel confident and comfortable. Another great reason to consider this GMC is its history. With only one previous owner and a clean Carfax report, you have added confidence when shopping for your next preowned diesel pickup. Come see this 2026 GMC Sierra 2500 SLT Duramax Turbo Diesel at Hart Chevrolet GMC in Dalhart, Texas. If you have been searching for a heavy duty truck that combines diesel power, premium comfort, and the capability to handle the demands of life in the Texas Panhandle, this Sierra is ready to impress. Stop by, climb inside, and take it for a drive. Your next hardworking truck might be waiting right here!

Features & options (236)

Bluetooth®
Heated Steering Wheel
Remote Start
4WD/AWD
Android Auto
Apple CarPlay
Leather Seats
Wi-Fi Hotspot
Auto Dimming Mirror
Emergency Brake Assist
Lane Departure Warning
Wireless Phone Charging
Forward Collision Warning
Navigation System
Rear View Camera
Tow Hitch/Tow Package
Automatic Climate Control
Entertainment System
Turbo Charged Engine
Cruise Control
Premium Sound System
Place and receive hands-free phone calls
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 Trial Subscription
Wireless phone projection
For Apple CarPlay and Android Auto
SiriusXM with 360L Trial Subscription
LED fog lamps
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
Chrome beltline moldings
18" LT275/70R18E all-terrain, blackwall tires
Chrome rear bumper
With integrated CornerSteps
Grille (Chrome surround with Chrome insert bars.)
IntelliBeam
Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
LED taillamps with LED stop lights and animation
Tailgate and bed rail protection caps
Spare tire carrier lock
Helps keep spare tire secure
Deep-tinted glass
Provides added protection from sun and glare
Rainsense automatic wipers
Rear wheelhouse liners
Cargo tie-downs
12-fixed rated at 500 lbs. per corner
Chrome door handles
Standard tailgate
Tailgate with EZ Lift assist, power lock & release
Hitch area lighting
CornerStep rear bumper
Located at each end of the rear bumper
Textured step pads to help provide secure footing
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
Cab-mounted cargo area lamps
Activated by switch located on center switch bank
Illuminates the cargo bed area
Cargo bed LED lighting
Provides light to find cargo in the bed
Chrome front bumper
Side Bed Step
Black textured step pads help provide secure footing
18" machined aluminum wheels with Dark Grey metallic accents
18" LT275/70R18 all-terrain, blackwall spare tire
Winter Grille Cover
6" Chrome rectangular assist steps (factory installed)
Textured step pads help provide secure footing
Summit White
Front license plate bracket
Spray-on bedliner
Includes GMC logo on all trims except PRO
Smoked Amber LED roof marker lamps
Roof-mounted lamps near the front of the cab
Theft-deterrent unauthorized entry system
Helps deter unauthorized entry, helping to protect your vehicle
Rear window defogger
Rear Seat Reminder
USB ports
(2) Data/charge ports located on instrument panel
Outside temperature display
Located in infotainment display
Power windows with driver express-up/down
10-way power front passenger seat
Includes 8-way power front passenger seat
Includes a 2-way power lumbar control
Power door locks
Carpeted floor covering
Color-keyed to match the interior
Inside rearview auto-dimming mirror
(2) Charge ports located on rear of console
Heated driver and front outboard passenger seats
Individually controlled
Keyless Open and Start
Lockout protection helps you avoid locking keys in the vehicle
10-way power driver seat with power lumbar
Includes 8-way power driver seat
Dual-zone automatic climate control
Allows individual climate settings for both driver and front passenger
Compass
Located in instrument cluster
Front carpeted floor mats
Helps protect your interior from road debris and the elements
Denali models feature unique premium tufted carpeting
Assist handles
Front A-pillar mounted for Driver and Passenger
Rear B-pillar mounted
Seat trim, Perforated Leather-appointed front outboard seating positions
Manual tilt and telescoping steering column
Rear carpeted floor mats
Power windows with driver and front passenger express-up/down
If obstruction is detected, the anti-pinch feature will auto-reverse
120-volt power outlet
3-prong auxiliary household-style outlet
Located on the instrument panel
Steering-wheel mounted controls
Rear air vents
Provides cabin comfort for rear occupants
Power windows with rear express-down
120-volt box-mounted power outlet
Located in the pickup bed
Maintains a selected speed while driving
Set and resume speed functions
Wrapped steering wheel
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)
12.3" diagonal color Driver Information Center
High definition display provides crisp, premium appearance
Driver memory
Front center console
Front bucket seats
Dark Walnut/Slate, Perforated Leather-appointed front outboard seating positions
Ventilated driver and front passenger seats
Cooling feature includes both seatbacks and cushions
Wireless Charging
Uses induction technology for select portable electronic devices
Convenient charging location
4-wheel antilock disc brakes
Integrated trailer brake controller
Integrated with the antilock brake system (ABS)
Heavy-Duty Air Filter
Four wheel drive
Fully boxed frame
Hydroformed front section
High-strength steel
Brake pad wear indicator
In-Vehicle Trailering App
Checklist
Trailer maintenance reminders
Trailer security alerts
Trailer mileage
Tow/haul reminder
Trailer electrical diagnostics
Automatic locking rear differential
Digital Variable Steering Assist
Off-Road suspension
Heavy-duty dual batteries with 1460 cold-cranking amps
70 Amp-hr
Maintenance-free with rundown protection and retained accessory power
11,350 lbs. GVWR
220-amp alternator
Emissions, Federal requirements
Hill Descent Control
Uses antilock braking to help provide a smooth, controlled descent
Activates by pushing a button below the instrument panel
Skid plates
Help protect the front underbody, oil pan and transfer case
SLT Preferred Equipment Group includes standard equipment
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
X31 Off-Road Package
Twin-tube Rancho shocks
X31 hard badge
Signature LED Daytime Running Lamps
LED Daytime Running Lamps
Tire Pressure Monitoring System with Tire Fill Alert
Rear Seat Belt Indicator
Teen Driver
Trailering Information Label
Forward Collision Alert
OnStar Basics
Drive confidently with core OnStar services including
Remote commands
Built-in voice assistance
Real-time traffic and navigation
Automatic Crash Response to help if you're in need
HD Rear Vision Camera
Can help you park or avoid vehicles and objects
Following Distance Indicator
Designed to help you maintain a safe following distance
OnStar services capable
Hitch View
Shows a close-up view of the trailer hitch
Hitch Guidance
Can help you line up the hitch to your trailer
Buckle to Drive
Seat Belt Adjustable Guide Loops
Front row only
6 airbags
Dual-stage frontal airbags for driver and front outboard passenger
Head-curtain airbags for outboard seating positions
Automatic Emergency Braking
Works at speeds between 5 and 50 mph
Front Pedestrian Braking
Limited nighttime and low visibility performance
DriveType: Four Wheel Drive
Fuel System: Direct Injection
Fuel Tank Capacity: 36 gal
Fuel Type: Diesel Fuel
Horse Power: 470
Rear Wheel: Single
Trailering Capacity: 18500 lbs

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 Dalhart, Texas

Asking price$65,813Dealer asking price · 29,260 mi

Market value$63,070Market value · based on 3 comparable cars

vs. market Fair price+4.3%Fair price · based on 3 comparable cars

Where this price sits

In the typical middle range · 33% of 3 similar listings ask more than this car.

Market value $63,070

This car$65,813

$60,388lowest$73,954highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$2,743 above the market value of $63,070

Price range

$60,388$73,954

3rd lowest price of 4 similar listings within 250 milesTick marks the market value · range of 3 similar listings

AutosXchange Insights

Compared with 3 used 2025–2026 GMC Sierra 2500 SLT listings within 250 mi.
Priced $2,743 above the market value of 3 comparable cars — compare options, condition and history.
3rd lowest price of 4 similar listings within 250 miles.
Has about 24,000 more miles than similar listings.
About 29,260 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 3493U — 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 14, 2026. No price change at this dealership since Nov 14 ($65,813).

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 14); 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 2025–2026 Sierra 2500 SLT · used · any miles · within 250 miles of Dalhart, Texas. All 3 comparable cars for sale, nearest first.

23 photos

2026 GMC Sierra 2500 HD SLT

$73,954est. $1,273/mo

$8,141 more than this car

1,735 mi
4WD
Automatic
Diesel
Truck

Greg Lair GMC · Canyon, TX · 89 mi away

0 viewsStock # G5976

Check availability Call

2025 GMC Sierra 2500 HD SLT for sale at Lewis Chevrolet of Dodge City in Dodge City, KS

Good deal

16 photos

2025 GMC Sierra 2500 HD SLT

$60,388est. $1,040/mo

$5,425 less than this car

71,000 mi
4WD
Automatic
Diesel
Truck

Lewis Chevrolet of Dodge City · Dodge City, KS · 180 mi away

0 viewsStock # 6369A

Check availability Call

2026 GMC Sierra 2500 HD SLT for sale at Vince's GM Center - Chevrolet in Burlington, CO

Good dealNew listing

17 photosCARFAX

2026 GMC Sierra 2500 HD SLT

$63,070est. $1,086/mo

$2,743 less than this car

4,937 mi
4WD
Automatic
Gasoline
Truck

Vince's GM Center - Chevrolet · Burlington, CO · 224 mi away

Listed today0 viewsStock # 63175A

Check availability Call

2026 GMC Sierra 2500 HD SLT vehicle photo

2026 GMC Sierra 2500 HD SLT1,735 miles · Greg Lair GMC · Canyon, TX · 89 mi away$73,954$8,141 more than this car

2025 GMC Sierra 2500 HD SLT vehicle photo

2025 GMC Sierra 2500 HD SLT71,000 miles · Lewis Chevrolet of Dodge City · Dodge City, KS · 180 mi away$60,388$5,425 less than this car

2026 GMC Sierra 2500 HD SLT4,937 miles · Vince's GM Center - Chevrolet · Burlington, CO · 224 mi away$63,070$2,743 less than this car

AutosXchange Intel uses current dealer-advertised asking prices, not completed sales or appraisals. It compares the same trim and condition (new or used) where at least three are listed nationwide, and adjusts the expected price for mileage; it is not adjusted for options, condition or accident history. Similar listings are searched within 50, 100 and 250 miles of the dealer first, then the dealer's state, then nationwide. The left gauge spans ±25% of the expected price. How AutosXchange price analysis works