2026 GMC Sierra 3500HD Denali



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  • *Please Note: We turn our inventory daily, please check with the dealer to confirm vehicle availability.

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Vehicle Information

VIN: 1GT4UWEY1TF193669
Stock #: 26P221
  • Body Style Crew Cab Pickup
  • Exterior Color Onyx Black
  • Interior Color Jet Black
  • Engine Turbocharged Diesel V8 6.6L/
  • 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 (Includes (KW5) 220-amp alternator, REAR AXLE, 3.42 RATIO, ONYX BLACK, LPO, ALL-WEATHER FLOOR LINER, 1ST AND 2ND ROWS (dealer-installed), GVWR, 12,100 LBS. (5488 KG) WITH SINGLE REAR WHEELS, GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness)., 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.). This GMC Sierra 3500HD has a strong Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission.* Experience a Fully-Loaded GMC Sierra 3500HD Denali *Wipers, front rain-sensing, Windows, power rear, express down, Window, power, rear sliding with rear defogger, Window, power front, passenger express up/down, Window, power front, drivers express up/down, Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.), Wheels, 20 (50.8 cm) Ultra-bright machined wheels with bright chrome inserts with Black painted pockets (Requires single rear wheels.), Wheelhouse liners, rear (Not available with dual rear wheel models.), USB Ports, 2, Charge/Data ports located inside center console, USB Ports, 2 (first row) located on console, USB ports, (2) charge-only, rear, Universal Home Remote, Transmission, 10-Speed automatic, Transfer case, two-speed active electronic Autotrac with push button control, Trailer Side Blind Zone Alert, Trailer Camera Provisions and trailer viewing software, Trailer brake controller, integrated, Tires, LT275/65R20 all-terrain, blackwall (Requires single rear wheels.), Tire, spare LT275/70R18 all-terrain, blackwall (Included and only available with (QF9) LT275/65R20 all-terrain, blackwall tires on single rear wheel models.), Tire Pressure Monitoring System auto learn, includes Tire Fill Alert (does not apply to spare tire).* Visit Us 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
  • G4Y
  • L5P
  • MGM
  • RIA
  • R6J
  • R6P
  • VYU
  • Z6A
  • REAR CAMERA MIRROR inside rearview auto-dimming with full camera display
  • GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
  • LICENSE PLATE KIT FRONT
  • 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)
  • TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15 Diagonal Head-Up Display
  • WHEELS 20 (50.8 CM) ULTRA-BRIGHT MACHINED WHEELS WITH BRIGHT CHROME INSERTS with Black painted pockets (STD)
  • TRANSMISSION 10-SPEED AUTOMATIC
  • DENALI PREFERRED EQUIPMENT GROUP includes standard equipment
  • 3 YEARS SIRIUSXM
  • 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
  • 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 (Includes (KW5) 220-amp alternator
  • ENGINE BLOCK HEATER
  • SUNROOF POWER
  • REAR AXLE 3.42 RATIO
  • GVWR 12 100 LBS. (5488 KG) WITH SINGLE REAR WHEELS
  • JET BLACK FORGE PERFORATED LEATHER SEATING SURFACES
  • EXHAUST BRAKE
  • ONYX BLACK
  • ALTERNATOR 220 AMPS
  • SEATS FRONT BUCKET WITH CENTER CONSOLE (STD)
  • MULTICOLOR 15 DIAGONAL HEAD-UP DISPLAY
  • LPO ALL-WEATHER FLOOR LINER 1ST AND 2ND ROWS (dealer-installed)
  • 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
  • Running Boards/Side Steps
  • Bed Liner
  • Daytime Running Lights
  • LED Headlights
  • Automatic Highbeams
  • Fog Lamps
  • Heated Mirrors
  • Power Mirror(s)
  • Integrated Turn Signal Mirrors
  • Power Folding Mirrors
  • Intermittent Wipers
  • Variable Speed Intermittent Wipers
  • Rain Sensing Wipers
  • Privacy Glass
  • Rear Defrost
  • Sliding Rear Window
  • Integrated Tailgate Step
  • AM/FM Stereo
  • Navigation System
  • MP3 Capability
  • Bluetooth® Connection
  • Auxiliary Audio Input
  • Smart Device Integration
  • Satellite Radio
  • Requires Subscription
  • Satellite Radio
  • Requires Subscription
  • Premium Sound System
  • Bluetooth® Connection
  • Bluetooth® Connection
  • Smart Device Integration
  • WiFi Hotspot
  • Bucket Seats
  • Leather Seats
  • Power Driver Seat
  • Driver Adjustable Lumbar
  • Power Passenger Seat
  • Passenger Adjustable Lumbar
  • Pass-Through Rear Seat
  • Rear Bench Seat
  • 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
  • Adjustable Steering Wheel
  • Steering Wheel Audio Controls
  • Tire Pressure Monitor
  • Power Windows
  • Power Windows
  • Power Door Locks
  • Remote Engine Start
  • Keyless Entry
  • Power Door Locks
  • Keyless Start
  • Cruise Control
  • Adaptive Cruise Control
  • Universal Garage Door Opener
  • 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 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
  • Cross-Traffic Alert
  • Blind Spot Monitor
  • Lane Departure Warning
  • Front Collision Warning
  • Front Collision Mitigation
  • Driver Restriction Features
  • Tire Pressure Monitor
  • Telematics
  • Navigation from Telematics
  • Requires Subscription
  • Telematics
  • Navigation from Telematics
  • WiFi Hotspot
  • Requires Subscription
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  • *Please Note: We turn our inventory daily, please check with the dealer to confirm vehicle availability.


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.