New GMC Sierra 1500 AT4 for Sale near Harrowsmith, ON

165 results

Kingston, ON

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2026 GMC Sierra 1500

New car

$81,078

Trenton, ON

81 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:: 7940
VIN:: 3GTUUEE80TG100990

2026 GMC Sierra 1500

New car

$82,912

Newmarket, ON

232 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:: 12,750
Stock number:: G101015
VIN:: 3GTUUEEL4TG101015

2026 GMC Sierra 1500

New car

$83,069

Richmond Hill, ON

232 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

$83,804

Oshawa, ON

186 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 (GBA)
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 128
Stock number:: 260704-new
VIN:: 1GTUUEE86TZ339671

2026 GMC Sierra 1500

New car

$84,353

Trenton, ON

81 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:: 13
Stock number:: 8690
VIN:: 1GTUUEE84TZ301761

2026 GMC Sierra 1500

New car

$85,068

Arnprior, ON

132 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 181
Stock number:: 2026209
VIN:: 3GTUUEEL1TG255522

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2026 GMC Sierra 1500

New car

$85,274

Whitby, ON

191 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:: Z324605
VIN:: 1GTUUEE86TZ324605

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2026 GMC Sierra 1500

New car

$85,274

Whitby, ON

191 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Combined gas mileage:: 11 L/100km
Fuel type:: Diesel
Transmission:: Automatic
Mileage:: 157
Stock number:: Z302973A
VIN:: 1GTUUEE82TZ302973

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2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

191 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: G278193
VIN:: 3GTUUEEL2TG278193

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2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

191 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:: 10
Stock number:: G277325
VIN:: 3GTUUEELXTG277325

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2026 GMC Sierra 1500

New car

$85,699

Whitby, ON

191 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: G277266
VIN:: 3GTUUEEL9TG277266

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2026 GMC Sierra 1500

New car

$85,783

Trenton, ON

81 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:: 9
Stock number:: 8769
VIN:: 1GTUUEE89TZ296637

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2026 GMC Sierra 1500

New car

$86,014

Whitby, ON

191 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:: 10
Stock number:: G248573
VIN:: 3GTUUEEL5TG248573

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2026 GMC Sierra 1500

New car

$86,014

Whitby, ON

191 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Interior colour:: Black
Transmission:: Automatic
Mileage:: 10
Stock number:: Z335037
VIN:: 1GTUUEEL0TZ335037

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2026 GMC Sierra 1500

New car

$86,083

Trenton, ON

81 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:: 9
Stock number:: 8527
VIN:: 3GTUUEE8XTG248838

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2026 GMC Sierra 1500

New car

$86,083

Trenton, ON

81 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
Stock number:: 8820
VIN:: 3GTUUEE80TG243731

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2026 GMC Sierra 1500

New car

$86,105

Carleton Place, ON

104 km away

Year:: 2026
Make:: GMC
Model:: Sierra 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Black
Interior colour:: Black
Transmission:: Automatic
Mileage:: 9
Stock number:: 310475
VIN:: 3GTUUEEL9TG310475

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2026 GMC Sierra 1500

New car

$86,139

Whitby, ON

191 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
Combined gas mileage:: 15 L/100km
Fuel type:: Gasoline
Transmission:: Automatic
Mileage:: 0
Stock number:: Z289165
VIN:: 1GTUUEEL8TZ289165

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2026 GMC Sierra 1500

New car

$86,148

Ottawa, ON

130 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:: 15
Stock number:: 260442
VIN:: 3GTUUEE83TG242735

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2026 GMC Sierra 1500

New car

$86,278

Trenton, ON

81 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:: 7
Stock number:: 8544
VIN:: 3GTUUEE84TG256255

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2026 GMC Sierra 1500

New car

$86,427

Ottawa, ON

140 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
Interior colour:: JET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHE
Transmission:: Automatic
Mileage:: 10
Stock number:: 26-0864
VIN:: 1GTUUEE83TZ322407

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2026 GMC Sierra 1500

New car

$86,488

Trenton, ON

81 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:: 6
Stock number:: 8805
VIN:: 1GTUUEE81TZ340324

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2026 GMC Sierra 1500

New car

$86,507

Trenton, ON

81 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:: 246
Stock number:: 8121
VIN:: 3GTUUEE89TG138329

Reviews

FAQs

4 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.

Buddy H

3.0

Reviewed a 2019 GMC AT4 Crew Cab 4WD on Jan. 05, 2025

Slightly over priced for the miles I would pay $29000-$30000 all day

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 L/100km (or EV battery range).

What fuel types are available?

Diesel, Gasoline engines are available.