2026 GMC Sierra 2500 HD AT4



In Stock
  • Retail Price: $87,869
  • EVERYONE BUYS PRICE: $87,369

  • Thornhill Total Savings: -$500
  • *Please Note: We turn our inventory daily, please check with the dealer to confirm vehicle availability.

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Vehicle Information

VIN: 1GT4UPEY4TF192747
Stock #: 26P226
Model Code: TK20743
  • Body Style Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black With Kalahari Accents, Perforated Front Leather Seat Trim
  • Engine 6.6L Duramax Turbo-Diesel V8 engine
  • Transmission Automatic
  • Fuel Type Diesel Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

TRANSMISSION, 10-SPEED AUTOMATIC, TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15" Diagonal Head-Up Display, SUNROOF, POWER, SNOW PLOW PREP/CAMPER PACKAGE includes (KW5) 220-amp alternator, includes increased front GAWR on Heavy Duty models, (NZZ) skid plates (transfer case and oil pan), pass through dash grommet hole and roof emergency light provisions. Contact GM Upfitter Integration at www.gmupfitter.com for plow installation details and assistance. Note: if ordered for Camper usage, recommend ordering (UY2) Trailering wiring provisions, REAR AXLE, 3.42 RATIO, ONYX BLACK, GVWR, 11,350 LBS. (5148 KG), ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.), AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote, (A48) rear sliding power window and (U01) Roof Marker Lamps, Wireless phone projection for Apple CarPlay and Android Auto. This GMC Sierra 2500HD has a dependable Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission.

This GMC Sierra 2500HD AT4 Has Everything You Want
Windows, power front, drivers express up/down, Window, power front, passenger express up/down, Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.), Wheels, 20" (50.8 cm) High Gloss black aluminum wheels 8 spokes, Wheelhouse liners, rear, USB Ports, 2, Charge/Data ports located inside center console, USB Ports, 2 (first row) located on console, USB ports, (2) charge-only, rear, Transmission, 10-Speed automatic, Transfer case, two-speed active, electronic Autotrac with push button control, Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering, Trailer Side Blind Zone Alert, Trailer Camera Provisions and trailer viewing software, Trailer brake controller, integrated, Tires, LT275/65R20 all-terrain, blackwall, Tire, spare LT275/70R18 all-terrain, blackwall, Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire), Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door, Theft-deterrent system, unauthorized entry, Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver.

Stop By Today
Stop by Thornhill GM Superstore located at Rt 119 and Trace Fork Rd, Chapmanville, WV 25508 for a quick visit and a great vehicle!

All Features

  • CF5
  • CWM
  • FE9
  • GBA
  • GU6
  • JGL
  • L5P
  • MGM
  • PDO
  • R6J
  • R6P
  • VYU
  • WHEELS 20 (50.8 CM) HIGH GLOSS BLACK ALUMINUM WHEELS 8 spokes (STD)
  • REAR CAMERA MIRROR inside rearview auto-dimming with full camera display
  • ALTERNATOR 220 AMP
  • TIRES LT275/65R20 ALL-TERRAIN BLACKWALL (STD)
  • TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15 Diagonal Head-Up Display
  • GVWR 11 350 LBS. (5148 KG)
  • TRANSMISSION 10-SPEED AUTOMATIC
  • 3 YEARS SIRIUSXM
  • JET BLACK WITH KALAHARI ACCENTS PERFORATED FRONT LEATHER SEAT TRIM
  • ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
  • WINTER GRILLE COVER
  • UNIVERSAL HOME REMOTE
  • ENGINE BLOCK HEATER
  • SNOW PLOW PREP/CAMPER PACKAGE includes (KW5) 220-amp alternator includes increased front GAWR on Heavy Duty models (NZZ) skid plates (transfer case and oil pan) pass through dash grommet hole and roof emergency light provisions. Contact GM Upfitter Integration at www.gmupfitter.com for plow installation details and assistance. Note: if ordered for Camper usage recommend ordering (UY2) Trailering wiring provisions
  • AUDIO SYSTEM 13.4 DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE includes color touch-screen multi-touch display AM/FM stereo Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones (STD)
  • SUNROOF POWER
  • SEATS FRONT BUCKET with center console (STD)
  • AT4 PREFERRED EQUIPMENT GROUP includes standard equipment
  • LICENSE PLATE KIT FRONT INCANDESCENT LIGHTING
  • LAMPS SMOKED AMBER ROOF MARKER (LED)
  • REAR AXLE 3.42 RATIO
  • EXHAUST BRAKE
  • ONYX BLACK
  • WINDOW POWER REAR SLIDING WITH REAR DEFOGGER
  • AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote (A48) rear sliding power window and (U01) Roof Marker Lamps
  • MULTICOLOR 15 DIAGONAL HEAD-UP DISPLAY
  • Lane Departure Warning
  • Front Collision Mitigation
  • Front Collision Warning
  • Automatic Highbeams
  • Tow Hitch
  • Running Boards/Side Steps
  • Keyless Start
  • Locking/Limited Slip Differential
  • Four Wheel Drive
  • Tow Hooks
  • Power Steering
  • ABS
  • 4-Wheel Disc Brakes
  • Aluminum Wheels
  • Tires - Front All-Terrain
  • Tires - Rear All-Terrain
  • Conventional Spare Tire
  • Bed Liner
  • Daytime Running Lights
  • Automatic Highbeams
  • Fog Lamps
  • Heated Mirrors
  • Power Mirror(s)
  • Integrated Turn Signal Mirrors
  • Power Folding Mirrors
  • Privacy Glass
  • Intermittent Wipers
  • Variable Speed Intermittent Wipers
  • Rain Sensing Wipers
  • Integrated Tailgate Step
  • AM/FM Stereo
  • Navigation System
  • MP3 Capability
  • Bluetooth® Connection
  • Auxiliary Audio Input
  • Smart Device Integration
  • Requires Subscription
  • Satellite Radio
  • Requires Subscription
  • Premium Sound System
  • Bluetooth® Connection
  • Bluetooth® Connection
  • Smart Device Integration
  • WiFi Hotspot
  • Bucket Seats
  • Leather Seats
  • Rear Bench Seat
  • Power Driver Seat
  • Driver Adjustable Lumbar
  • Power Passenger Seat
  • Passenger Adjustable Lumbar
  • Heated Front Seat(s)
  • Heated Front Seat(s)
  • Cooled Front Seat(s)
  • Heated Rear Seat(s)
  • Mirror Memory
  • Seat Memory
  • Floor Mats
  • Floor Mats
  • Heated Steering Wheel
  • Steering Wheel Audio Controls
  • Adjustable Steering Wheel
  • Power Windows
  • Power Windows
  • Power Windows
  • Power Door Locks
  • Keyless Entry
  • Power Door Locks
  • Keyless Start
  • Remote Engine Start
  • Cruise Control
  • Adaptive Cruise Control
  • Security System
  • MP3 Capability
  • Auxiliary Audio Input
  • MP3 Capability
  • Auxiliary Audio Input
  • Climate Control
  • Multi-Zone A/C
  • A/C
  • Rear Defrost
  • Auto-Dimming Rearview Mirror
  • Front Collision Mitigation
  • Front Collision Mitigation
  • Front Collision Warning
  • Traction Control
  • Stability Control
  • Daytime Running Lights
  • Daytime Running Lights
  • Driver Air Bag
  • Passenger Air Bag
  • Front Side Air Bag
  • Front Head Air Bag
  • Rear Head Air Bag
  • Passenger Air Bag Sensor
  • Telematics
  • Requires Subscription
  • Rear Parking Aid
  • Back-Up Camera
  • Aerial View Display System
  • Back-Up Camera
  • Front Collision Warning
  • Lane Departure Warning
  • Cross-Traffic Alert
  • Blind Spot Monitor
  • Driver Restriction Features
  • Tire Pressure Monitor
  • Navigation System
  • Telematics
  • Requires Subscription
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Tax, title, license, documentation, and dealer fees (unless itemized above) are extra. Not available with special finance or lease offers. Prices may not reflect all accessories by dealer, including conversion vehicles.The Thornhill Value+Plus 10years/150,000miles Warranty available on most New Models Excluding Diesel Trucks, 2500 or 3500 Series Pickup Trucks. When applied Thornhill Trade Assist is Available on 2010 & Newer Model Automobile Trade-In, Running/Working/Drive-able Condition. Automobiles Only…Not Available On Other Trade-In Items. See Dealer For All Offers and Details.