CarGurus Logo Homepage Link
  • Buy
    • Used cars
    • New cars
    • Certified pre-owned
    • Start your purchase online
  • Sell
    • Sell my car
    • Car values
  • Research
    • Test drive reviews
    • Price trends
    • Compare cars
  • Saved cars & searches
  • Sign in / Register
    • My account
    • Saved searches
    • Saved cars
    • Recommended cars
    • Browsing history
      • United States (EN)
      • Estados Unidos (ES)
      • Canada (EN)
      • Canada (FR)
      • United Kingdom

Used GMC Sierra 1500 AT4 for Sale near Millbrook, ON

107 results
Bethany, ON
2019 GMC Sierra 1500 AT4 Crew Cab 4WD Clutch - Toronto

2019 GMC Sierra 1500

AT4 Crew Cab 4WD

160,000 kilometres

$38,490

Good Deal
96 km away
Year:
2019
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior colour:
Black
Combined gas mileage:
14 L/100km
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
160,000
Stock number:
89079
VIN:
1GTP9EED8KZ289740

Sponsored

2022 GMC Sierra 1500 AT4 Crew Cab 4WD

2022 GMC Sierra 1500

AT4 Crew Cab 4WD

75,451 kilometres

$53,395

Good Deal
Bolton, ON
100 km away
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior colour:
Black
Combined gas mileage:
10 L/100km
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
75,451
Stock number:
UF0053
VIN:
3GTUUEETXNG603594

Sponsored

2023 GMC Sierra 1500 AT4 Crew Cab 4WD

2023 GMC Sierra 1500

AT4 Crew Cab 4WD

154,838 kilometres

$43,995

Good Deal
Oakville, ON
119 km away
Year:
2023
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Exterior colour:
Gray
Transmission:
Automatic
Mileage:
154,838
Stock number:
A0641
VIN:
3GTUUEEL3PG227663

Sponsored

2022 GMC Sierra 1500 AT4 Crew Cab 4WD

2022 GMC Sierra 1500

AT4 Crew Cab 4WD

86,117 kilometres

$50,817

Great Deal
St. Marys, ON
232 km away
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior colour:
White
Combined gas mileage:
10 L/100km
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
86,117
Stock number:
P2567
VIN:
3GTUUEET4NG659742

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

6,250 kilometres

$81,999

Great Deal
Simcoe, ON
200 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
Combined gas mileage:
11 L/100km
Fuel type:
Diesel
Interior colour:
JET BLACK/KALAHARI
Transmission:
Automatic
Mileage:
6,250
Stock number:
26T76A
VIN:
3GTUUEE8XTG116274

2019 GMC Sierra 1500 AT4 Crew Cab 4WD

2019 GMC Sierra 1500

AT4 Crew Cab 4WD

198,092 kilometres

$31,995

Great Deal
Peterborough, ON
25 km away
Year:
2019
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior colour:
Gray
Combined gas mileage:
14 L/100km
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
198,092
Stock number:
UT32831
VIN:
1GTP9EED8KZ332831

Preparing for a close up...

Photos coming soon

2023 GMC Sierra 1500

AT4 Crew Cab 4WD

72,747 kilometres

$53,995

Great Deal
Belleville, ON
90 km away
Year:
2023
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:
10 L/100km
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
72,747
Stock number:
43342J
VIN:
3GTUUEE83PG307153

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 1500

AT4 Crew Cab 4WD

17,100 kilometres

$65,995

Great Deal
Belleville, ON
90 km away
Year:
2025
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:
10 L/100km
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
17,100
Stock number:
43523J
VIN:
3GTUUEE82SG217436

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

18,407 kilometres

$66,678

Good Deal
Uxbridge, ON
48 km away
Year:
2024
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:
14 L/100km
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
18,407
Stock number:
263239A
VIN:
3GTUUEEL9RG370183

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

168,531 kilometres

$38,298

Good Deal
St Catharines, ON
120 km away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior colour:
Onyx Black
Combined gas mileage:
15 L/100km
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
168,531
Stock number:
E2350
VIN:
3GTP9EEL0MG423215

Preparing for a close up...

Photos coming soon

2022 GMC Sierra 1500

AT4 Crew Cab 4WD

86,266 kilometres

$52,900

Good Deal
Midland, ON
128 km away
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior colour:
White
Combined gas mileage:
10 L/100km
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
86,266
Stock number:
00U472
VIN:
3GTUUEET7NG659766

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

34,562 kilometres

$64,998

Good Deal
Guelph, ON
155 km away
Year:
2024
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:
10 L/100km
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
34,562
Stock number:
RG131353
VIN:
3GTUUEE83RG131353

Preparing for a close up...

Photos coming soon

2022 GMC Sierra 1500

AT4 Crew Cab 4WD

69,402 kilometres

$55,990

Good Deal
Cobourg, ON
30 km away
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior colour:
Black
Combined gas mileage:
10 L/100km
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
69,402
Stock number:
NG593054
VIN:
3GTUUEET3NG593054

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

38,616 kilometres

$64,991

Good Deal
Richmond Hill, ON
77 km away
Year:
2024
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:
10 L/100km
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
38,616
Stock number:
AP1939
VIN:
3GTUUEE83RG239147

Preparing for a close up...

Photos coming soon

2022 GMC Sierra 1500

AT4 Crew Cab 4WD

78,266 kilometres

$52,995

Good Deal
Cayuga, ON
170 km away
Year:
2022
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:
78,266
Stock number:
450724
VIN:
3GTPUEEL6NG540636

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 1500

AT4 Crew Cab 4WD

49,509 kilometres

$67,495

Good Deal
Aurora, ON
76 km away
Year:
2025
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:
10 L/100km
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
49,509
Stock number:
US4061
VIN:
3GTUUEE84SG185590

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 1500

AT4 Crew Cab 4WD

20,000 kilometres

$70,000

Good Deal
Midland, ON
129 km away
Year:
2025
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Combined gas mileage:
10 L/100km
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
20,000
Stock number:
260477A
VIN:
3GTUUEE83SG298415

Preparing for a close up...

Photos coming soon

2023 GMC Sierra 1500

AT4 Crew Cab 4WD

93,063 kilometres

$53,990

Good Deal
Cobourg, ON
30 km away
Year:
2023
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior colour:
Blue
Combined gas mileage:
10 L/100km
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
93,063
Stock number:
PG323277
VIN:
3GTUUEE82PG323277

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

69,000 kilometres

$46,770

Good Deal
North York, ON
91 km away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Exterior colour:
White
Transmission:
Automatic
Mileage:
69,000
Stock number:
309787
VIN:
3GTP9EEL1MG309787

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

31,452 kilometres

$64,995

Good Deal
Listowel, ON
198 km away
Year:
2024
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:
10 L/100km
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
31,452
Stock number:
225269
VIN:
3GTUUEE82RG225269

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

120,668 kilometres

$43,995

Good Deal
Certified Pre-Owned
Brampton, ON
103 km away
Year:
2021
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:
120,668
Stock number:
324785A
VIN:
1GTP9EELXMZ281343

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 1500

AT4 Crew Cab 4WD

43,000 kilometres

$68,900

Good Deal
Brampton, ON
111 km away
Year:
2025
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:
10 L/100km
Fuel type:
Diesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
43,000
Stock number:
26288
VIN:
3GTUUEE82SG129003

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

120,668 kilometres

$43,995

Good Deal
Certified Pre-Owned
Brampton, ON
103 km away
Year:
2021
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:
120,668
Stock number:
324785A
VIN:
1GTP9EELXMZ281343

Sponsored

  1. Home
  2. / Used Cars
  3. / GMC Sierra 1500
  4. / AT4
  5. / Ontario
  6. / Millbrook

  • GMC Sierra 1500 Elevation in Millbrook ON

  • GMC Sierra 1500 Denali in Millbrook ON

  • GMC Sierra 1500 SLE in Millbrook ON

  • GMC Sierra 1500 AT4 in Millbrook ON

  • GMC Sierra 1500 SLT in Millbrook ON

  • GMC Sierra 1500 Base in Millbrook ON

  • GMC Sierra 1500 SL in Millbrook ON

  • GMC Sierra 1500 Work Truck in Millbrook ON

  • GMC Sierra 1500 SLE1 in Millbrook ON

  • GMC Sierra 1500 in Peterborough ON

  • GMC Sierra 1500 in Port Hope ON

  • GMC Sierra 1500 in Cobourg ON

  • GMC Sierra 1500 in Oshawa ON

  • GMC Sierra 1500 in Whitby ON

  • GMC Sierra 1500 in Ajax ON

  • GMC Sierra 1500 in Pickering ON

  • GMC Sierra 1500 in Stouffville ON

  • GMC Sierra 1500 in Markham ON

  • GMC Sierra 1500 in Millbrook ON

  • Best Work Trucks for Sale in Millbrook ON

  • GMC Sierra 1500 in Alberta

  • GMC Sierra 1500 in British Columbia

  • GMC Sierra 1500 in Manitoba

  • GMC Sierra 1500 in New Brunswick

  • GMC Sierra 1500 in Newfoundland and Labrador

  • GMC Sierra 1500 in Northwest Territories

  • GMC Sierra 1500 in Nova Scotia

  • GMC Sierra 1500 in Nunavut

  • GMC Sierra 1500 in Ontario

  • GMC Sierra 1500 in Prince Edward Island

  • GMC Sierra 1500 in Quebec

  • GMC Sierra 1500 in Saskatchewan

  • GMC Sierra 1500 in Yukon

  • 2019 GMC Sierra 1500 AT4 in Millbrook ON

  • All Used Cars

  • Cheap Cars

  • Manual Transmission Cars

  • Sports Cars

  • Hybrid Cars

  • Red Interior Cars

  • Electric Cars

  • Small Cars

  • AWD Cars

  • Cheap Automatic Transmission Cars

  • Classic Trucks

  • Conversion Vans

  • Three Quarter Ton Trucks

  • Diesel Trucks

  • Small Trucks

  • Chevrolet Diesel Trucks

  • Manual Diesel Trucks

  • One Ton Trucks

  • Cheap Trucks

  • Ford Trucks

  • Cheap SUVs

  • Mercedes-Benz Convertibles

  • Ford Diesel Trucks

  • Mercedes-Benz SUVs

  • BMW Convertibles

  • Chevrolet SUVs

  • Toyota SUVs

  • Nissan SUVs

  • Used Cars Under $10,000

  • Used Cars Under $5,000

  • Used Sedans for Sale with Low Mileage

  • Used SUVs / Crossovers for Sale with Low Mileage

  • Used Hatchbacks for Sale with Low Mileage

  • Used Convertibles for Sale with Low Mileage

  • Used Vans for Sale with Low Mileage

  • Used Minivans for Sale with Low Mileage

  • Used Pickup Trucks for Sale with Low Mileage

  • Used Coupes for Sale with Low Mileage

  • Used Wagons for Sale with Low Mileage

  • Boyer Chevrolet Buick GMC Ajax Ltd

  • Jack McGee Peterborough

  • Williamson GM Uxbridge

  • Mills Buick GMC

  • Roy Nichols Motors Chevrolet

  • McCurdy Chevrolet Buick GMC

  • Quantrill Chevrolet Buick GMC Cadillac

  • Markville Chevrolet Buick GMC

Connect with us
Download our app
Download on the App Store Get it on Google Play
  • Company
  • About CarGurus
  • Our team
  • Press
  • Investor relations
  • Price trends
  • Advertise with CarGurus
  • For dealers
  • Dealer signup
  • Dealer resources
  • Terms
  • Terms of use
  • Privacy policy
  • Interest-based ads
  • Security
  • Help
  • Help center
  • Contact us
    • United States (EN)
    • Estados Unidos (ES)
    • Canada (EN)
    • Canada (FR)
    • United Kingdom

© 2026 CarGurus, Inc., All Rights Reserved.