2025 GMC Sierra-3500-HD for sale in Oshawa at Mills Motors Buick GMC - 1 2025 GMC Sierra-3500-HD for sale in Oshawa at Mills Motors Buick GMC - 1

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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 4WD Crew Cab Standard Box Denali Ultimate 2025
      Stock: 250382-NEW
      VIN: 1GT4UYEYXSF128040
      75 KM. Auto., Ext: Onyx Black,
      Stock #: 250382-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: Onyx Black
      Doors: 4
      Financing 84 months
      430 @ 4.99%
      +HST & Licenses/wk 0 cash down
    • GMC Sierra 3500 HD 4WD Crew Cab Long Box Denali 2025
      Stock: 250393-NEW
      VIN: 1GT4UWEY7SF269393
      10 KM. Auto., Ext: Onyx Black,
      Stock #: 250393-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: Onyx Black
      Doors: 4
      Financing 84 months
      369 @ 4.99%
      +HST & Licenses/wk 0 cash down
    • GMC Sierra 3500 HD 4WD Crew Cab Standard Box Denali 2025
      Stock: 250417-NEW
      VIN: 1GT4UWE7XSF274434
      10 KM. Auto., Ext: Downpour Metallic, Int: Atmosphere/Brownstone
      Stock #: 250417-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Gas
      Category: Trucks
      Exterior Colour: Downpour Metallic
      Interior Colour: Atmosphere/Brownstone
      Doors: 4
      Financing 84 months
      360 @ 4.99%
      +HST & Licenses/wk 0 cash down
    • GMC Sierra 3500 HD 4WD Crew Cab Long Box Denali 2025
      Stock: 250608-NEW
      VIN: 1GT4UWEY3SF320534
      10 KM. Auto., Ext: Onyx Black,
      Stock #: 250608-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: Onyx Black
      Doors: 4
      Financing 84 months
      366 @ 4.99%
      +HST & Licenses/wk 0 cash down
    • GMC Sierra 3500 HD 4WD Crew Cab Standard Box Denali 2025
      Stock: 250649-NEW
      VIN: 1GT4UWEY6SF331155
      72 KM. Auto., Ext: Sterling Metallic,
      Stock #: 250649-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: Sterling Metallic
      Doors: 4
      Financing 84 months
      357 @ 4.99%
      +HST & Licenses/wk 0 cash down
    • GMC Sierra 3500 HD 4WD Crew Cab Long Box Denali 2025
      Stock: 250659-NEW
      VIN: 1GT4UWEYXSF331515
      10 KM. Auto., Ext: Sterling Metallic,
      Stock #: 250659-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: Sterling Metallic
      Doors: 4
      Financing 84 months
      369 @ 4.99%
      +HST & Licenses/wk 0 cash down
    • GMC Sierra 3500 HD 4WD Crew Cab Long Box Denali 2025
      Stock: 250660-NEW
      VIN: 1GT4UWEY7SF333156
      12 KM. Auto., Ext: Onyx Black,
      Stock #: 250660-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: Onyx Black
      Doors: 4
      Financing 84 months
      364 @ 4.99%
      +HST & Licenses/wk 0 cash down
    • GMC Sierra 3500 HD 4WD Crew Cab Long Box Denali 2025
      Stock: 250661-NEW
      VIN: 1GT4UWEY3SF333042
      12 KM. Auto., Ext: Summit White,
      Stock #: 250661-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: Summit White
      Doors: 4
      Financing 84 months
      369 @ 4.99%
      +HST & Licenses/wk 0 cash down
    • New arrivals
      GMC Sierra 3500 HD 4WD Crew Cab Standard Box Denali 2025
      Stock: 250551-NEW
      VIN: 1GT4UWEY7SF314686
      10 KM. Auto., Ext: Onyx Black,
      Stock #: 250551-NEW
      Engine: 6.6 L
      Cylinders: V8
      Transmission: Auto.
      Drive train: Four-wheel drive
      Fuel: Diesel
      Category: Trucks
      Exterior Colour: Onyx Black
      Doors: 4
      Financing 84 months
      406 @ 4.99%
      +HST & Licenses/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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