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New GMC Sierra 1500 AT4 for Sale near St Catharines, ON

48 results
St Catharines, ON
2026 GMC Sierra 1500 AT4 Crew Cab 4WD

2026 GMC Sierra 1500

New car

$84,208

Aurora, 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:
ONYX BLACK
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
9
Stock number:
2671B-new
VIN:
3GTUUEE86TG200317

2026 GMC Sierra 1500 AT4 Crew Cab 4WD

2026 GMC Sierra 1500

New car

$86,089

Richmond Hill, ON
82 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:
Black
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
0
Stock number:
TG211511
VIN:
3GTUUEEL7TG211511

2026 GMC Sierra 1500 AT4 Crew Cab 4WD

2026 GMC Sierra 1500

New car

$86,883

Grimsby, ON
22 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
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
746
Stock number:
T235
VIN:
3GTUUEE88TG154635

2026 GMC Sierra 1500 AT4 Crew Cab 4WD

2026 GMC Sierra 1500

New car

$88,269

Cambridge, ON
91 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
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
10
Stock number:
260385
VIN:
3GTUUEE89TG200876

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2026 GMC Sierra 1500

New car

$88,474

Cambridge, ON
91 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
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
133
Stock number:
260241
VIN:
3GTUUEE83TG155529

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2026 GMC Sierra 1500

New car

$89,914

Oshawa, ON
87 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:
SUMMIT WHITE
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
10
Stock number:
260274-new
VIN:
3GTUUEEL2TG205700

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2026 GMC Sierra 1500

New car

$90,682

Grimsby, ON
22 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:
Black
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
114
Stock number:
T147
VIN:
3GTUUEEL5TG107437

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2026 GMC Sierra 1500

New car

$90,923

Niagara Falls, ON
14 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
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
25
Stock number:
431B12201
VIN:
3GTUUEE85TG140692

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2026 GMC Sierra 1500

New car

$91,107

Bolton, ON
85 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
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
528
Stock number:
117012
VIN:
3GTUUEE87TG117012

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2026 GMC Sierra 1500

New car

$91,214

Cambridge, ON
91 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:
White
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
10
Stock number:
260256
VIN:
3GTUUEEL8TG164697

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2026 GMC Sierra 1500

New car

$91,218

Georgetown, ON
76 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:
White
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
91
Stock number:
42004
VIN:
3GTUUEEL7TG149074

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2026 GMC Sierra 1500

New car

$91,343

Georgetown, ON
76 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:
Silver
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
0
Stock number:
42349
VIN:
3GTUUEEL8TG218211

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2026 GMC Sierra 1500

New car

$91,624

Oshawa, ON
87 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:
STERLING METALLIC
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
0
VIN:
3GTUUEEL4TG212969

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2026 GMC Sierra 1500

New car

$92,435

Etobicoke, ON
67 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
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
11
Stock number:
WG136402
VIN:
3GTUUEELXTG136402

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2026 GMC Sierra 1500

New car

$92,596

Mississauga, ON
63 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:
Summit White
Fuel type:
Diesel
Interior colour:
Jet Black with Kalahari accents, Perforated leathe
Transmission:
Automatic
Mileage:
25
Stock number:
TG153265
VIN:
3GTUUEE87TG153265

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2026 GMC Sierra 1500

New car

$93,640

Markham, ON
78 km away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Exterior colour:
Black
Transmission:
Automatic
Mileage:
88
Stock number:
123018
VIN:
3GTUUEELXTG123018

  1. Home
  2. / New Cars
  3. / GMC Sierra 1500
  4. / AT4
  5. / Ontario
  6. / St Catharines
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 14 MPG (or MPGe).

What fuel types are available?

Diesel, Gasoline engines are available.

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