Used GMC Diesel For Sale in Oshawa / Durham Region


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  • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die...
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 1)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 2)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 3)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 4)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 5)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 6)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 7)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 8)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 9)

    $48,560

    +taxes

    Good price

    2021 GMC Sierra 1500 AT4

    137098 km

    Automatic

    Diesel

    Brantford

    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 1)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 2)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 3)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 4)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 5)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 6)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 7)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 8)
    • Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Die... (image 9)
    CARFAX ReportContactless services

    Conquer any terrain with this 2021 GMC Sierra 1500 AT4 Crew Cab. Its powerful Duramax 3.0L Turbo-Diesel I6 engine (277 hp, 460 lb-ft of torque) delivers unmatched capability, whether you're hauling ...

  • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb...
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 1)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 2)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 3)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 4)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 5)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 6)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 7)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 8)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 9)

    $82,498

    +taxes

    Good price

    2024 GMC Sierra 1500 Denali

    27798 km

    Automatic

    Diesel

    Whitby

    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 1)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 2)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 3)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 4)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 5)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 6)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 7)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 8)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 9)
    CARFAX Report

    Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turbo-Diesel I6 engine delivering 305 hp and a substantial 495 lb-ft of torque. This meticulously ...

  • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb...
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 1)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 2)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 3)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 4)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 5)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 6)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 7)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 8)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 9)

    $82,498

    +taxes

    Good price

    2024 GMC Sierra 1500 Denali

    27798 km

    Automatic

    Diesel

    Whitby

    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 1)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 2)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 3)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 4)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 5)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 6)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 7)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 8)
    • Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turb... (image 9)
    Certified Pre-OwnedCARFAX Report

    Command the road in this 2024 GMC Sierra 1500 Denali Crew Cab, boasting a powerful Duramax 3.0L Turbo-Diesel I6 engine delivering 305 hp and a substantial 495 lb-ft of torque. This meticulously ...

  • Pricing includes $599 admin fee, $10 OMVIC fee, $50 Carfax fee. Pricing does not include HST or lice...

    $81,791

    +taxes

    Fair price

    2025 GMC Sierra 1500 Elevation

    11500 km

    Automatic

    Diesel

    Uxbridge

    Pricing includes $599 admin fee, $10 OMVIC fee, $50 Carfax fee. Pricing does not include HST or licensing. Engine: Straight 6 Cylinder Engine 3.0L/183CI L/100Km City: 10.6 L/100Km Hwy: 9.0 Safety ...

  • Pricing includes $599 admin fee, $10 OMVIC fee, $50 Carfax fee. Pricing does not include HST or lice...

    $83,396

    +taxes

    Fair price

    2025 GMC Sierra 1500 Elevation

    102 km

    Diesel

    Uxbridge

    Pricing includes $599 admin fee, $10 OMVIC fee, $50 Carfax fee. Pricing does not include HST or licensing. Engine: Straight 6 Cylinder Engine 3.0L/183CI L/100Km City: 10.6 L/100Km Hwy: 9.0 Safety ...

  • Our Showrooms are Open Monday to Thursday 9 AM to 8 PM, Friday and Saturday 9 AM to 5:30 PM. If you...

    $37,686

    +taxes

    Great price

    2021 GMC Sierra 1500

    180119 km

    Diesel

    Ajax

    CARFAX Report

    Our Showrooms are Open Monday to Thursday 9 AM to 8 PM, Friday and Saturday 9 AM to 5:30 PM. If you would prefer to book an appointment call 905-427-2500 or email at leadsboyerajax.ca. You still have ...

  • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh...
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 1)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 2)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 3)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 4)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 5)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 6)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 7)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 8)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 9)

    $51,995

    +taxes

    Great price

    2023 GMC Sierra 1500 SLE 4x4 Diesel SLE 1500 Crew cab 3.0L Duram

    43102 km

    Diesel

    Cobourg

    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 1)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 2)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 3)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 4)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 5)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 6)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 7)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 8)
    • SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wh... (image 9)
    Certified Pre-OwnedCARFAX Report

    SLE 1500 Crew cab 3.0L Duramax diesel, heated seats, heated steering wheel, remote start, 20 inch wheels, clean carfax! This professional grade Sierra 1500 has the proven GMC power you expect from ...

  • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for...
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 1)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 2)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 3)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 4)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 5)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 6)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 7)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 8)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 9)

    $79,995

    +taxes

    Great price

    2025 GMC Sierra 1500 AT4 - Certified

    15315 km

    Diesel

    Cobourg

    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 1)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 2)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 3)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 4)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 5)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 6)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 7)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 8)
    • Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for... (image 9)
    Certified Pre-OwnedCARFAX Report

    Certified! Astoundingly advanced and exceedingly premium, this 2025 GMC Sierra 1500 is designed for pickup excellence. This 2025 GMC Sierra 1500 is fresh on our lot in Cobourg. This 2025 GMC Sierra ...

  • GMC Premium Infotainment System w/ Colour Touch Display and Embedded Navigation, Wireless Apple CarP...

    $61,990

    +taxes

    Fair price

    2022 GMC Sierra 1500 AT4 AT4 + 3.0L Diesel + NAV + Sunroof +...

    90280 km

    Diesel

    Port Hope

    Certified Pre-OwnedCARFAX Report

    GMC Premium Infotainment System w/ Colour Touch Display and Embedded Navigation, Wireless Apple CarPlay and Android Auto, AM/FM/XM Radio, Hands Free Communications, Hotspot Capable, Bose Speaker ...

  • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate...
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 1)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 2)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 3)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 4)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 5)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 6)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 7)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 8)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 9)

    $79,995

    +taxes

    Great price

    2024 GMC Sierra 1500 Denali Reserve 4x4 - Low Mileage, Denali Re

    13600 km

    Diesel

    Cobourg

    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 1)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 2)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 3)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 4)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 5)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 6)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 7)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 8)
    • Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heate... (image 9)
    Certified Pre-OwnedCARFAX Report

    Low Mileage! - Low Mileage, Denali Reserve package, Power running boards, sunroof, Navigation, heated and cooled leather, One owner, local trade! Clean Carfax! With a bold profile and distinctive ...

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