GMC  for sale in Oshawa at Mills Motors Buick GMC - 1

New Inventory 2026 GMC for Sale 
in Oshawa

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+HST & Licenses

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** Estimated payment shown is for informational purposes only and does not represent a financing offer or guarantee of credit from the dealer, the manufacturer or any other lender. Estimated payment is calculated based on the information you enter in the Car Loan Calculator estimator tool. Vehicle must have a total financed amount of at least CAD $7,500. The lender will determine each buyer's applicable finance rate in its discretion based on external and internal evaluation methods of credit worthiness.
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    • Clearance
      GMC Sierra 3500 HD  2026
      Stock: 260231-NEW
      VIN: 1GT3UTE71TF135899
      229 KM. Auto., Ext: SUMMIT WHITE, Int: JET BLACK
      Stock #: 260231-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Gas
      Category: Trucks
      Exterior Colour: SUMMIT WHITE
      Interior Colour: JET BLACK
      Doors: 2
      Financing 84 months
      263 @ 4.79%
      +HST & Licensing/wk 0 cash down
    • GMC Sierra 3500 HD  2026
      Stock: 260408-NEW
      VIN: 1GT4UTE76TF200248
      10 KM. Auto., Ext: ONYX BLACK, Int: JET BLACK
      Stock #: 260408-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Gas
      Category: Trucks
      Exterior Colour: ONYX BLACK
      Interior Colour: JET BLACK
      Doors: 4
      Financing 84 months
      283 @ 3.99%

      (5.01 % APR)
      +HST & Licensing/wk 0 cash down
    • New arrivals
      GMC Sierra 3500 HD  2026
      Stock: 260479-NEW
      VIN: 1GT4UVEY2TF150422
      195 KM. Auto., Ext: SUMMIT WHITE, Int: JET BLACK/KALAHARI
      Stock #: 260479-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: SUMMIT WHITE
      Interior Colour: JET BLACK/KALAHARI
      Doors: 4
      Financing 84 months
      366 @ 3.99%

      (4.78 % APR)
      +HST & Licensing/wk 0 cash down
    • GMC Sierra 3500 HD  2026
      Stock: 260363-NEW
      VIN: 1GT4UYEY2TF196964
      12 KM. Auto., Ext: GLACIER WHITE TRICOAT, Int: ALPINE UMBER
      Stock #: 260363-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: GLACIER WHITE TRICOAT
      Interior Colour: ALPINE UMBER
      Doors: 4
      Financing 84 months
      413 @ 3.99%

      (4.68 % APR)
      +HST & Licensing/wk 0 cash down
    • GMC Sierra 3500 HD  2026
      Stock: 260376-NEW
      VIN: 1GT4UYEY4TF200691
      10 KM. Auto., Ext: ONYX BLACK, Int: ALPINE UMBER
      Stock #: 260376-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: ONYX BLACK
      Interior Colour: ALPINE UMBER
      Doors: 4
      Financing 84 months
      417 @ 3.99%

      (4.68 % APR)
      +HST & Licensing/wk 0 cash down
    • GMC Sierra 3500 HD  2026
      Stock: 260409-NEW
      VIN: 1GT4UYEY2TF201273
      10 KM. Auto., Ext: ONYX BLACK, Int: ALPINE UMBER
      Stock #: 260409-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: ONYX BLACK
      Interior Colour: ALPINE UMBER
      Doors: 4
      Financing 84 months
      417 @ 3.99%

      (4.68 % APR)
      +HST & Licensing/wk 0 cash down
    • New arrivals
      GMC Sierra 3500 HD  2026
      Stock: 260430-NEW
      VIN: 1GT4UYEY1TF201345
      10 KM. Auto., Ext: GLACIER WHITE TRICOAT, Int: ALPINE UMBER
      Stock #: 260430-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: GLACIER WHITE TRICOAT
      Interior Colour: ALPINE UMBER
      Doors: 4
      Financing 84 months
      421 @ 3.99%

      (4.67 % APR)
      +HST & Licensing/wk 0 cash down
    • In Transit
      GMC Sierra  2026
      Stock: 13395147
      VIN: 1GT4UWEYXTF213630
      GMC 2026 Sierra Denali in Oshawa
      120,813
      +HST & Licensingwas 126,813
      Auto., Ext: ONYX BLACK, Int: JET BLACK
      Stock #: 13395147
      Engine: 6.6 L
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Gas
      Category: Trucks
      Exterior Colour: ONYX BLACK
      Interior Colour: JET BLACK
      Financing 84 months
      390 @ 3.99%

      (4.73 % APR)
      +HST & Licensing/wk 0 cash down
    • GMC Sierra 3500 HD  2026
      Stock: 260431-NEW
      VIN: 1GT4UYEYXTF200436
      10 KM. Auto., Ext: GLACIER WHITE TRICOAT, Int: ALPINE UMBER
      Stock #: 260431-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: GLACIER WHITE TRICOAT
      Interior Colour: ALPINE UMBER
      Doors: 4
      Financing 84 months
      412 @ 3.99%

      (4.69 % APR)
      +HST & Licensing/wk 0 cash down
    The amount shown reflects an estimate of the amount that you can expect to pay in Canadian dollars. Taxes are excluded (unless selected otherwise). Photos for illustration purposes only. While we strive to ensure that the information on this website is accurate, we recommend contacting us directly to verify details and obtain additional information about the vehicle, including confirmation of prices, colors, trims, options, and other specifications.
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