New GMC Sierra 1500 AT4 for Sale near Thorold, ON

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Thorold, ON

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2026 GMC Sierra 1500

New car

$79,494

Oshawa, ON

92 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: STERLING METALLIC
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 12
Stock number:: 260411-new
VIN:: 3GTUUEE82TG237929

2026 GMC Sierra 1500

New car

$83,269

Richmond Hill, ON

88 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: White
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 0
Stock number:: TG240781
VIN:: 3GTUUEE80TG240781

2026 GMC Sierra 1500

New car

$83,639

Richmond Hill, ON

88 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Black
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 0
Stock number:: TG232744
VIN:: 3GTUUEE89TG232744

2026 GMC Sierra 1500

New car

$83,639

Richmond Hill, ON

88 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Black
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 0
Stock number:: TG233013
VIN:: 3GTUUEE88TG233013

2026 GMC Sierra 1500

New car

$84,069

Richmond Hill, ON

88 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Gray
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 0
Stock number:: TG243760
VIN:: 3GTUUEE87TG243760

2026 GMC Sierra 1500

New car

$85,364

Oshawa, ON

92 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: STERLING METALLIC
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 12
Stock number:: 260449-new
VIN:: 3GTUUEE87TG246318

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2026 GMC Sierra 1500

New car

$86,368

Oshawa, ON

92 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: ONYX BLACK
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 0
VIN:: 3GTUUEE80TG257094

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2026 GMC Sierra 1500

New car

$86,399

Toronto, ON

66 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Silver
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 223
Stock number:: TG189658
VIN:: 3GTUUEE88TG189658

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2026 GMC Sierra 1500

New car

$88,215

Etobicoke, ON

74 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Black
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: WG100311
VIN:: 3GTUUEE89TG100311

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2026 GMC Sierra 1500

New car

$88,606

Niagara Falls, ON

10 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: White
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 5
Stock number:: 431B12265
VIN:: 3GTUUEE86TG232734

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2026 GMC Sierra 1500

New car

$89,053

Toronto, ON

66 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Silver
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 7
Stock number:: TG246161
VIN:: 3GTUUEE80TG246161

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2026 GMC Sierra 1500

New car

$89,069

Cambridge, ON

96 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Black
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: 260450
VIN:: 3GTUUEE80TG200877

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2026 GMC Sierra 1500

New car

$90,003

Toronto, ON

66 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 420 hp 6.2L V8
Exterior colour:: Gray
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 7
Stock number:: TG108881
VIN:: 3GTUUEEL7TG108881

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2026 GMC Sierra 1500

New car

$90,067

Niagara Falls, ON

10 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Silver
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 0
Stock number:: 431B12406
VIN:: 3GTUUEE84TG247538

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2026 GMC Sierra 1500

New car

$90,137

Oakville, ON

54 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: ONYX BLACK
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 0
VIN:: 1GTUUEE85TZ297994

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2026 GMC Sierra 1500

New car

$90,358

Grimsby, ON

26 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior colour:: Brown (Tan)
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 0
Stock number:: T434
VIN:: 3GTUUEE8XTG123743

Reviews

FAQs

5 Overall rating

(2 reviews)

Anonymous

5.0

Reviewed a 2019 GMC AT4 Crew Cab 4WD on Sep. 08, 2024

The truck had all the features I wanted and the price was in-line, or better with others in my search.

Amjad I

5.0

Reviewed a 2019 GMC AT4 Crew Cab 4WD on Aug. 06, 2024

Great prices. The truck that I purchased is in good condition and it looks like that it was serviced.

GMC Sierra 1500 AT4 FAQs

What is the fuel economy of the GMC Sierra 1500 AT4?

Depending on the engine and options, the GMC Sierra 1500 AT4 gets between 9 and 15 L/100km (or EV battery range).

What fuel types are available?

Diesel, Gasoline engines are available.