4 Results
In Transit
Duramax Diesel
2025 GMC Sierra 2500HD AT4 4WD Crew Cab 159" AT4 Turbocharged Diesel V8 6.6L/ [0]
Stock#: T25100
VIN: 1GT1UPEY2SF144407

New 2025 GMC Sierra 2500HD 4WD AT4

AT4 4WD Crew Cab Standard Box AT4 Pickup Crew Cab Pickup 4WD 10-Speed Automatic Turbocharged Diesel V8 6.6L/
WhiteSummit White Jet Black with Kalahari accents
MSRP
$119,456
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
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We'll contact you shortly.
In Transit
Duramax Diesel
2025 GMC Sierra 2500HD AT4 4WD Crew Cab 159" AT4 Turbocharged Diesel V8 6.6L/ [1]
Stock#: T25068
VIN: 1GT1UPEY9SF144582

New 2025 GMC Sierra 2500HD 4WD AT4

AT4 4WD Crew Cab Standard Box AT4 Pickup Crew Cab Pickup 4WD 10-Speed Automatic Turbocharged Diesel V8 6.6L/
GrayThunderstorm Grey Jet Black with Kalahari accents
MSRP
$119,606
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.
In Transit
Duramax Diesel
2025 GMC Sierra 2500HD AT4 4WD Crew Cab 159" AT4 Turbocharged Diesel V8 6.6L/ [2]
Stock#: T25134
VIN: 1GT1UPEY0SF156958

New 2025 GMC Sierra 2500HD 4WD AT4

AT4 4WD Crew Cab Standard Box AT4 Pickup Crew Cab Pickup 4WD 10-Speed Automatic Turbocharged Diesel V8 6.6L/
GrayThunderstorm Grey Jet Black with Kalahari accents
MSRP
$119,781
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.
In Transit
Duramax Diesel
2025 GMC Sierra 2500HD AT4 4WD Crew Cab 159" AT4 Turbocharged Diesel V8 6.6L/ [3]
Stock#: T25103
VIN: 1GT1UPEY3SF144495

New 2025 GMC Sierra 2500HD 4WD AT4

AT4 4WD Crew Cab Standard Box AT4 Pickup Crew Cab Pickup 4WD 10-Speed Automatic Turbocharged Diesel V8 6.6L/
GrayTitanium Rush Metallic Jet Black with Kalahari accents
MSRP
$119,951
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.

New GMC Inventory for Jim Gauthier Buick GMC

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

Effective September 1st, 2022, vehicles sold in Canada above $100,000 pre-tax retail price may be subject to a luxury tax of either 20% on the amount above $100,000 or a flat 10% on the full value. This tax is in addition to the Provincial Sales Tax (PST) and the Goods and Services Tax (GST). For official information, refer to the Government of Canada website.

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