2026 GMC Sierra 3500HD SLT
in Oshawa

The amount shown reflects an estimate of the amount that you can expect to pay in Canadian dollars and includes freight and PDI. Taxes are excluded (unless selected otherwise). Photos represent the model offered but may vary slightly in color, options, or features. 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.
Drivetrain
Four Wheel Drive
Engine
Gas V8
Transmission
Automatic
Fuel Type
Gasoline
 
Estimated Fuel Economy
for the 2026 GMC Sierra 3500HD
City
L/100 km
Highway
L/100 km
Combined
L/100 km
Actual mileage may vary with options, driving conditions, driving habits, and vehicle's condition.
Our 2026 GMC Sierra 3500HD 4WD Crew Cab Standard Box SLT in stock!
  • 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
    273 @ 4.79%
    +HST & Licensing/wk 0 cash down
  • New arrivals
    GMC Sierra 3500 HD  2026
    Stock: 260311-NEW
    VIN: 1GT4UWEY3TF179613
    12 KM. Auto., Ext: ONYX BLACK, Int: JET BLACK
    Stock #: 260311-NEW
    Engine: 6.6 L
    Cylinders: V8
    Transmission: Auto.
    Drive train: Four-wheel drive
    Fuel: Diesel
    Category: Trucks
    Exterior Colour: ONYX BLACK
    Interior Colour: JET BLACK
    Doors: 4
    Financing 84 months
    394 @ 3.99%

    (4.72 % 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
    423 @ 3.99%

    (4.67 % APR)
    +HST & Licensing/wk 0 cash down
  • New arrivals
    GMC Sierra 3500 HD  2026
    Stock: 260390-NEW
    VIN: 1GT4UYEY0TF201126
    12 KM. Auto., Ext: GLACIER WHITE TRICOAT, Int: ALPINE UMBER
    Stock #: 260390-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
    430 @ 3.99%

    (4.66 % APR)
    +HST & Licensing/wk 0 cash down
  • In Transit
    GMC Sierra  2026
    Stock: 13286856
    VIN: 1GT4UYEY1TF201345
    GMC 2026 Sierra Denali Ultimate in Oshawa
    133,459
    +HST & Licensingwas 136,459
    Auto., Ext: GLACIER WHITE TRICOAT, Int: ALPINE UMBER
    Stock #: 13286856
    Engine: 6.6 L
    Transmission: Auto.
    Drive train: Four-wheel drive
    Fuel: Gas
    Category: Trucks
    Exterior Colour: GLACIER WHITE TRICOAT
    Interior Colour: ALPINE UMBER
    Financing 84 months
    430 @ 3.99%

    (4.66 % APR)
    +HST & Licensing/wk 0 cash down
  • In Transit
    GMC Sierra  2026
    Stock: 13286859
    VIN: 1GT4UYEYXTF200436
    GMC 2026 Sierra Denali Ultimate in Oshawa
    130,744
    +HST & Licensingwas 133,744
    Auto., Ext: GLACIER WHITE TRICOAT, Int: ALPINE UMBER
    Stock #: 13286859
    Engine: 6.6 L
    Transmission: Auto.
    Drive train: Four-wheel drive
    Fuel: Gas
    Category: Trucks
    Exterior Colour: GLACIER WHITE TRICOAT
    Interior Colour: ALPINE UMBER
    Financing 84 months
    421 @ 3.99%

    (4.67 % APR)
    +HST & Licensing/wk 0 cash down
Indemnification clause
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 represent the model offered but may vary slightly in color, options, or features. 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.
front45
Build & Price Your 2026 GMC Sierra 3500HD SLT Now!
You can build & price your own 2026 GMC Sierra 3500HD including the style, color & options to get an exact price, with our promotions and rebates and availability in stock.
starting at $90,499 +HST & Licenses
profile
ajax loader2
A few more questions
  1. What is your preferred method of contact?
  2. Mills Motors Buick GMC
    IMPORTANT: You can easily remove your consent at any time!
SUBMIT