Key Features

An icon representing Body Type
Body Type Pickup
An icon representing Mileage
Mileage 3 mi
An icon representing Fuel Type
Fuel Type Diesel
An icon representing Drivetrain
Drivetrain 4x4
An icon representing Cab Type
Cab Type Crew Cab
An icon representing Trim
Trim AT4

Vehicle Details

checklist

Overview

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Stock Number

F260079

Stock Type

New

Year

2026

Make
Model
Model Code

TK20743

Cab Type

Crew

Vehicle Trim

AT4

Body Type
VIN

1GT4UPEY7TF120358

Brake Type

Hydraulic

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Dimensions

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Dimensions

Class

3

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Drivetrain

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Drivetrain

4x4

Transmission

Transmission Type

Automatic

manufacturing

Engine

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Engine Cylinder Count

8

Engine Model

L5P

Engine Size (L)

6.6

Fuel Type

Diesel

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Colors

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Interior Color

Jet Black With Kalahari Accents

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Vehicle Options

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  • AT4 Preferred Package
  • AT4 Premium Plus Package
  • Gooseneck/5th Wheel Prep Package
  • Preferred Equipment Group 4SB
  • Technology Package
  • X31 Off-Road Package
  • 7 Speakers
  • AM/FM radio: SiriusXM with 360L
  • Bose Premium 7-Speaker Sound System
  • Premium audio system: Premium GMC Infotainment System
  • Steering Wheel Audio Controls
  • Air Conditioning
  • Automatic temperature control
  • Electric Rear-Window Defogger
  • Front dual zone A/C
  • Rear window defroster
  • 120-Volt Bed Mounted Power Outlet
  • 120-Volt Instrument Panel Power Outlet
  • Driver Memory
  • Memory seat
  • Power driver seat
  • Power steering
  • Power windows
  • Push Button Start
  • Remote keyless entry
  • Remote Vehicle Starter System
  • Steering wheel mounted audio controls
  • Universal Home Remote
  • Manual Tilt-Wheel/Telescoping Steering Column
  • Off-Road Suspension
  • Speed-sensing steering
  • Traction control
  • 4-Wheel Disc Brakes
  • ABS brakes
  • Dual front impact airbags
  • Dual front side impact airbags
  • Emergency communication system: OnStar
  • Front anti-roll bar
  • Front wheel independent suspension
  • Low tire pressure warning
  • Occupant sensing airbag
  • Overhead airbag
  • Power Sunroof
  • Pickup Box
  • Brake assist
  • Electronic Stability Control
  • Lane Departure Warning System
  • Hill Descent Control
  • Auto High-beam Headlights
  • Delay-off headlights
  • Front fog lights
  • Fully automatic headlights
  • Panic alarm
  • Security system
  • Unauthorized Entry Theft-Deterrent System
  • Speed control
  • 2-Speed Active Transfer Case
  • Engine Block Heater
  • Exhaust Brake
  • Heavy-Duty 80 Amp Battery
  • High Idle Switch
  • Auto-dimming door mirrors
  • Bumpers: body-color
  • Heated door mirrors
  • LED Cargo Area Lighting
  • LED Smoked Amber Roof Marker Lamps
  • Power door mirrors
  • Power-Retractable Black Assist Steps
  • Rear step bumper
  • Rear Wheelhouse Liners
  • Turn signal indicator mirrors
  • Winter Grille Cover
  • 2 Charge-Only Rear USB Ports
  • 2 Charge/Data USB Ports Inside Center Console
  • 2 USB Ports
  • Apple CarPlay/Android Auto
  • Auto-dimming Rear-View mirror
  • Automatic Emergency Braking
  • Buckle to Drive
  • Compass
  • Driver door bin
  • Driver vanity mirror
  • Floor-Mounted Center Console
  • Following Distance Indicator
  • Forward Collision Alert
  • Front Pedestrian Braking
  • Front reading lights
  • HD Surround Vision
  • Heated steering wheel
  • Illuminated entry
  • Multicolor 15" Diagonal Head-Up Display
  • OnStar Services Capable
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Rear Cross Traffic Alert
  • Rear reading lights
  • Rear seat center armrest
  • Tachometer
  • Telescoping steering wheel
  • Tilt steering wheel
  • Trailer Side Blind Zone Alert
  • Trip computer
  • Universal Vehicle Module
  • Upfitter Switch Kit (5)
  • Voltmeter
  • Wireless Charging
  • Wireless Phone Projection
  • Front Bucket Seats
  • Front Center Armrest
  • Heated 2nd Row Outboard Seats
  • Heated front seats
  • Heated rear seats
  • Perforated Leather-Appointed Front Seat Trim
  • Power passenger seat
  • Safety Alert Seat
  • Split folding rear seat
  • Ventilated front seats
  • Passenger door bin
  • Alloy wheels
  • Wheels: 20" High Gloss Black 8 Spokes Aluminum
  • Deep-Tinted Glass
  • Front Rain-Sensing Wipers
  • Rain sensing wipers
  • Variably intermittent wipers
  • 3.42 Axle Ratio

Jeff Schmitt GMC ci2 Test Site

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Listing Notes
Coastal Dune 2026 GMC Sierra 2500HD Crew Cab AT4 with 6.6L Duramax Turbodiesel, AT4 Premium Plus Preferred Package, Hitch Package, High Idle Switch, Tri Fold Hard Tonneau Cover, and MORE!!10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports Inside Center Console, 2 USB Ports, 2-Speed Active Transfer Case, 3.42 Axle Ratio, Apple CarPlay/Android Auto, AT4 Preferred Package, AT4 Premium Plus Package, Bose Premium 7-Speaker Sound System, Deep-Tinted Glass, Electric Rear-Window Defogger, Floor-Mounted Center Console, Front Rain-Sensing Wipers, Gooseneck/5th Wheel Prep Package, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated steering wheel, High Idle Switch, Hill Descent Control, Illuminated entry, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Manual Tilt-Wheel/Telescoping Steering Column, Multicolor 15" Diagonal Head-Up Display, OnStar Services Capable, Power Sunroof, Power-Retractable Black Assist Steps, Preferred Equipment Group 4SB, Push Button Start, Rain sensing wipers, Rear Cross Traffic Alert, Rear Wheelhouse Liners, Remote Vehicle Starter System, Safety Alert Seat, Steering Wheel Audio Controls, Technology Package, Trailer Side Blind Zone Alert, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Universal Vehicle Module, Upfitter Switch Kit (5), Wheels: 20" High Gloss Black 8 Spokes Aluminum, Wireless Charging, Wireless Phone Projection, X31 Off-Road Package.All qualifying vehicles include the Jeff Schmitt Advantage: Complimentary Vehicle Maintenance for 1 additional year which includes 2 free oil changes and 2 free tire rotations; we also will provide you with a complimentary loaner vehicle while we work on your vehicle so you don't have to wait; Auto Deductible Reimbursement when you utilize any of our 4 conveniently located Collision Centers; ID Theft Restoration assistance; 72 Hour Exchange Policy; our Best Value Guarantee; Elite Vehicle Delivery which includes two sets of keys, a full tank of gas, and a vehicle that has been detailed just for you; and a free CARFAX report on any pre-owned vehicle in our inventory. (See dealer for details.) *Prices do not include applicable tax, title, license, doc fees, or any dealer adds. Pricing incentives listed cannot be combined with any special manufacturer APR rates.* Price includes: $500 - Buick & GMC Consumer Cash Program. Exp. 03/31/2026
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%

$1,314.80 /month


Excludes tax, tag and other fees. This estimate is for general information purposes only.