3 Results
In Transit
Duramax Diesel
2026 GMC Sierra 2500HD AT4 4WD Crew Cab 159" AT4 Turbocharged Diesel V8 6.6L/ [0]
Stock#: T26281
VIN: 1GT4UPEY2TF141408

New 2026 GMC Sierra 2500HD 4WD AT4

AT4 Crew Cab Standard Box 4-Wheel Drive AT4 Pickup Crew Cab Pickup 4WD 10-Speed Automatic Turbocharged Diesel V8 6.6L/
WhiteSummit White Jet Black with Kalahari accents
MSRP
$ 115,632
Net Price
$112,632
Key Features
  • 4 wheel Drive 4 wheel Drive
  • Anti Lock Braking System Anti Lock Braking System
  • Wifi Wifi
  • Power Seat(s) Power Seat(s)
  • Heated Seats Heated Seats
Request More Info
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In Transit
Duramax Diesel
2026 GMC Sierra 2500HD AT4 4WD Crew Cab 159" AT4 Turbocharged Diesel V8 6.6L/ [1]
Stock#: T26125
VIN: 1GT1UPEY8TF108061

New 2026 GMC Sierra 2500HD 4WD AT4

AT4 Crew Cab Standard Box 4-Wheel Drive AT4 Pickup Crew Cab Pickup 4WD 10-Speed Automatic Turbocharged Diesel V8 6.6L/
BlackOnyx Black Jet Black with Kalahari accents
MSRP
$ 117,961
Net Price
$114,961
Key Features
  • 4 wheel Drive 4 wheel Drive
  • Anti Lock Braking System Anti Lock Braking System
  • Bed Liner Bed Liner
  • Wifi Wifi
  • Power Seat(s) Power Seat(s)
Request More Info
Thanks for your submission.
We'll contact you shortly.
Start Pre-Approval
In Transit
Duramax Diesel
2026 GMC Sierra 2500HD AT4 4WD Crew Cab 159" AT4 Turbocharged Diesel V8 6.6L/ [2]
Stock#: T26303
VIN: 1GT1UPEY0TF148358

New 2026 GMC Sierra 2500HD 4WD AT4

AT4 Crew Cab Standard Box 4-Wheel Drive AT4 Pickup Crew Cab Pickup 4WD 10-Speed Automatic Turbocharged Diesel V8 6.6L/
BlackOnyx Black Jet Black with Kalahari accents
MSRP
$ 120,091
Net Price
$117,091
Key Features
  • 4 wheel Drive 4 wheel Drive
  • Anti Lock Braking System Anti Lock Braking System
  • Wifi Wifi
  • Power Seat(s) Power Seat(s)
  • Heated Seats Heated Seats
Request More Info
Thanks for your submission.
We'll contact you shortly.
Start Pre-Approval

New GMC Inventory for Jim Gauthier Buick GMC

Pricing shown does not include taxes, including sales taxes or luxury taxes (where applicable). Prices represent the selling price minus current incentives and include air conditioning charge, freight, tire levy (where applicable), dealer-installed options, accessories, pre-delivery, administration charges and other retailer charges and exclude taxes, license and insurance. All prices are in Canadian Dollars unless otherwise stated and all financing is OAC. Please contact the dealership for more information.

Every effort is made to ensure the accuracy of the content. In the event of a discrepancy, error and/or omission or vehicle prices, please contact the dealership to confirm all information and pricing.

In the event of a discrepancy, error and/or omission or vehicle prices, please contact the dealership to confirm all information and pricing.

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