New 2026 GMC Sierra 2500 AT4 Crew Cab

Stock #M260143

New 2026 GMC Sierra 2500 AT4 Crew Cab

Stock #M260143
New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 1
New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 1 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 2 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 3 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 4 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 5 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 6 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 7 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 8 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 9 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 10 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 11 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 12 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 13 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 14 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 15 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 16 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 17 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 18 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 19 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 20 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 21 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 22 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 23 New 2026 GMC Sierra 2500 AT4 Crew Cab for sale #M260143 - photo 24
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Dealer Video
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Pricing Details

MSRP $89,484
Buick & GMC Consumer Cash Program - $500
Dealer Discount - $8,281
Price $80,703
Total Savings $8,781
Additional Upfit Cost

Price above does not include any of the Build & Quote options.

Vehicle available NOW in McHenry, IL.

Contact Castle GMC of McHenry for more info.

(815) 605-6468
Castle GMC of McHenry logo
Vehicle Transportation
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Vehicle Notes

Onyx Black 2026 GMC Sierra 2500HD AT4 10-Speed Automatic, 4WD, Jet Black With Kalahari Accent Leather.Factory MSRP: $89,484AT4 Preferred Package (LED …
Read More… Onyx Black 2026 GMC Sierra 2500HD AT4 10-Speed Automatic, 4WD, Jet Black With Kalahari Accent Leather.Factory MSRP: $89,484AT4 Preferred Package (LED Smoked Amber Roof Marker Lamps, Power Sliding Rear Window w/Defogger, and Universal Home Remote), AT4 Premium Plus Package (Off-Road High Clearance Step (LPO) and Power Sunroof), Gooseneck/5th Wheel Prep Package, Snow Plow Prep/Camper Package (220-Amp Alternator), Technology Package (Inside Rearview Auto-Dimming Rear Camera Mirror and Multicolor 15" Diagonal Head-Up Display), X31 Off-Road Package (Hill Descent Control), 10-Speed Automatic, 4WD, Jet Black With Kalahari Accent Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 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 Years SiriusXM, 4-Wheel Disc Brakes, 7 Speakers, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7-Speaker Sound System, Brake assist, Buckle to Drive, Bumpers: body-color, Compass, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electronic Stability Control, Emergency communication system: OnStar, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Pedestrian Braking, Front Prem Floor Liners w/Removable Carpet Insert, Front Rain-Sensing Wipers, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Gloss Black Header Grille & Grille Insert Bars, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering System App, IntelliBeam Automatic High Beam On/Off, Keyless Open & Start, Lane Departure Warning System, LED Cargo Area Lighting, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Occupant sensing airbag, Off-Road Suspension, OnStar Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, Pickup Box, Power door mirrors, Power driver seat, Power Front Passenger Windows w/Express Up/Down, Power passenger seat, Power steering, Power windows, Premium audio system: Premium GMC Infotainment System, Push Button Start, Radio: AM/FM w/Premium GMC Infotainment System, Rain sensing wipers, Rear Cross Traffic Alert, Rear Prem Floor Liners w/Removable Carpet Insert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote keyless entry, Remote Vehicle Starter System, Safety Alert Seat, Security system, Set of 4 Wheel Locks (LPO), SiriusXM w/360L Trial Subscription, Speed control, Speed-sensing steering, Split folding rear seat, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Tachometer, Telescoping steering wheel, Tilt steering wheel, Traction control, Trailer Cam Provisions & Trailer Viewing Software, Trailer Side Blind Zone Alert, Trip computer, Turn signal indicator mirrors, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Upfitter Switch Kit (5), Vari Selling Price includes: $500 - Buick & GMC Consumer Cash Program. Exp. 01/02/2026
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Chassis Details

Stock Number
M260143
Stock Type
New
Year
2026
Make
GMC
Model
Sierra 2500
Class
3
Drivetrain
4WD
Cab Type
Crew
Vehicle Trim
AT4
Vehicle VIN
1GT4UPEY6TF167798
Interior Color
Jet Black With Kalahari Accent
Seating Capacity
5
Exterior Color Description
Black
Engine Cylinder Count
8
Transmission Type
Automatic
Fuel Type
Diesel
Engine Model
L5P
Engine Size (L)
6.6
Brake Type
Hydraulic

Vehicle Options

  • Wheels: 20" High Gloss Black 8 Spokes Aluminum
  • Set of 4 Wheel Locks (LPO)
  • Perforated Leather-Appointed Front Seat Trim
  • 10-Way Power Driver Seat Adjuster w/Lumbar
  • AT4 Preferred Package
  • AT4 Premium Plus Package
  • Technology Package
  • Radio: AM/FM w/Premium GMC Infotainment System
  • 3 Years SiriusXM
  • Electric Rear-Window Defogger
  • Front Prem Floor Liners w/Removable Carpet Insert
  • 120-Volt Instrument Panel Power Outlet
  • 2 Charge-Only Rear USB Ports
  • Power Sunroof
  • Upfitter Switch Kit (5)
  • Spray-On Pickup Bedliner w/GMC Logo
  • Deep-Tinted Glass
  • LED Smoked Amber Roof Marker Lamps
  • LED Cargo Area Lighting
  • Pickup Box
  • Rear Wheelhouse Liners
  • Off-Road High Clearance Step (LPO)
  • Snow Plow Prep/Camper Package
  • Gooseneck/5th Wheel Prep Package
  • 220-Amp Alternator
  • Skid Plates
  • Off-Road Suspension
  • 2-Speed Active Transfer Case
  • Inside Rearview Auto-Dimming Rear Camera Mirror
  • SiriusXM w/360L Trial Subscription
  • Driver Memory
  • Power Sliding Rear Window w/Defogger
  • 10-Way Power Passenger Seat Adjuster w/Lumbar
  • Power Front Passenger Windows w/Express Up/Down
  • Keyless Open & Start
  • Rear Prem Floor Liners w/Removable Carpet Insert
  • Push Button Start
  • Remote Vehicle Starter System
  • Front Rain-Sensing Wipers
  • Floor-Mounted Center Console
  • Gloss Black Header Grille & Grille Insert Bars
  • Safety Alert Seat
  • Hill Descent Control
  • Wireless Charging
  • Heated Driver & Front Outboard Passenger Seats
  • Heated 2nd Row Outboard Seats
  • 120-Volt Bed Mounted Power Outlet
  • Ventilated Driver & Front Passenger Seats
  • Heavy-Duty 80 Amp Battery
  • Manual Tilt-Wheel/Telescoping Steering Column
  • Wireless Phone Projection
  • ProGrade Trailering System
  • Hitch Guidance w/Hitch View
  • Buckle to Drive
  • IntelliBeam Automatic High Beam On/Off
  • Trailer Cam Provisions & Trailer Viewing Software
  • 2 Charge/Data USB Ports Inside Center Console
  • 2 USB Ports
  • Ultrasonic Front & Rear Park Assist
  • OnStar Services Capable
  • Following Distance Indicator
  • In-Vehicle Trailering System App
  • Forward Collision Alert
  • Rear Cross Traffic Alert
  • Lane Departure Warning System
  • Universal Home Remote
  • Automatic Emergency Braking
  • Steering Wheel Audio Controls
  • Front Pedestrian Braking
  • Trailer Side Blind Zone Alert
  • Bose Premium 7-Speaker Sound System
  • Unauthorized Entry Theft-Deterrent System
  • HD Surround Vision
  • Multicolor 15" Diagonal Head-Up Display
  • Bed View Camera w/2 Trailer Camera Provisions
  • X31 Off-Road Package
  • 4-Wheel Disc Brakes
  • Apple CarPlay/Android Auto
  • Premium audio system: Premium GMC Infotainment System
  • Emergency communication system: OnStar
  • AM/FM radio: SiriusXM with 360L
  • Auto High-beam Headlights
  • Compass
  • 7 Speakers
  • Auto-dimming Rear-View mirror
  • Ventilated front seats
  • Variably intermittent wipers
  • Turn signal indicator mirrors
  • Trip computer
  • Traction control
  • Tilt steering wheel
  • Telescoping steering wheel
  • Steering wheel mounted audio controls
  • Split folding rear seat
  • Speed-sensing steering
  • Speed control
  • Security system
  • Remote keyless entry
  • Rear window defroster
  • Rear step bumper
  • Rear seat center armrest
  • Rear reading lights
  • Rain sensing wipers
  • Power windows
  • Power steering
  • Power passenger seat
  • Power driver seat
  • Power door mirrors
  • Passenger vanity mirror
  • Passenger door bin
  • Panic alarm
  • Overhead console
  • Overhead airbag
  • Outside temperature display
  • Occupant sensing airbag
  • Memory seat
  • Low tire pressure warning
  • Illuminated entry
  • Heated steering wheel
  • Heated rear seats
  • Heated front seats
  • Heated door mirrors
  • Fully automatic headlights
  • Front wheel independent suspension
  • Front reading lights
  • Front fog lights
  • Front dual zone A/C
  • Front anti-roll bar
  • Dual front side impact airbags
  • Dual front impact airbags
  • Driver vanity mirror
  • Driver door bin
  • Delay-off headlights
  • Bumpers: body-color
  • Brake assist
  • Automatic temperature control
  • Auto-dimming door mirrors
  • Alloy wheels
  • ABS brakes
  • Voltmeter
  • Tachometer
  • Front Center Armrest
  • Front Bucket Seats
  • Electronic Stability Control
  • Air Conditioning
  • View All

Build & Get a Quote

Body Details

Body Type
Pickup
Call For Pricing

Pricing Details

MSRP $89,484
Buick & GMC Consumer Cash Program - $500
Dealer Discount - $8,281
Price $80,703
Total Savings $8,781
Additional Upfit Cost

Price above does not include any of the Build & Quote options.

Vehicle available NOW in McHenry, IL.

Contact Castle GMC of McHenry for more info.

(815) 605-6468
Castle GMC of McHenry logo
Vehicle Transportation
Get a quote to transport this specific vehicle from the dealer's location straight to your business. Powered by Crestline Auto Transport.
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