CarGurus Logo Homepage Link
  • Buy
    • Used cars
    • New cars
    • Certified pre-owned
    • Start your purchase online
    • Dealerships near me
  • Sell
    • Sell my car
    • Car values
    • Sell my car FAQs
  • Finance
    • Prequalify for financing
    • How does it work?
    • Financing FAQs
  • Research
    • Test drive reviews
    • Price trends
    • Tips & advice
    • Electric cars
    • Compare cars
  • Discover
    The latest way to shop:
    smarter research, better
    listings.
  • Saved cars & searches
  • Sign in / Register
    • My account
    • Saved searches
    • Saved cars
    • Recommended cars
    • Browsing history
    • Financing dashboard
      • United States (EN)
      • Estados Unidos (ES)
      • Canada (EN)
      • Canada (FR)
      • United Kingdom

Used GMC Sierra 1500 AT4 for Sale near Freeport, IL

387 results
Freeport, IL
2023 GMC Sierra 1500 AT4 Crew Cab 4WD Lake Chevrolet

2023 GMC Sierra 1500

AT4 Crew Cab 4WD

43,430 miles

$49,387

Good Deal
Milwaukee, WI
96 mi away
Year:
2023
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Sterling Metallic
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black with Kalahari accents
Transmission:
Automatic
Mileage:
43,430
Stock number:
C19325NC
VIN:
1GTUUEEL2PZ126761

Sponsored

2023 GMC Sierra 1500 AT4 Crew Cab 4WD

2023 GMC Sierra 1500

AT4 Crew Cab 4WD

41,764 miles

$48,634

Good Deal
Certified Pre-Owned
Janesville, WI
42 mi away
Year:
2023
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
41,764
Stock number:
KL314
VIN:
1GTUUEEL2PZ141566

Sponsored

2024 GMC Sierra 1500 AT4 Crew Cab 4WD

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

74,814 miles

$46,552

Good Deal
Certified Pre-Owned
Janesville, WI
42 mi 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 color:
Onyx Black
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
74,814
Stock number:
KL283
VIN:
1GTUUEEL3RZ113326

Sponsored

2020 GMC Sierra 1500 AT4 Crew Cab 4WD

2020 GMC Sierra 1500

AT4 Crew Cab 4WD

73,540 miles

$35,791

Great Deal
Crystal Lake, IL
68 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
73,540
Stock number:
PV10218
VIN:
3GTP9EEL7LG119264

2020 GMC Sierra 1500 AT4 Crew Cab 4WD

2020 GMC Sierra 1500

AT4 Crew Cab 4WD

95,127 miles

$34,157

Great Deal
Dubuque, IA
58 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Pacific Blue Metallic
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
95,127
Stock number:
26T299A
VIN:
3GTP9EEL4LG412331

2020 GMC Sierra 1500 AT4 Crew Cab 4WD

2020 GMC Sierra 1500

AT4 Crew Cab 4WD

51,516 miles

$40,789

Good Deal
Ottawa, IL
78 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Pacific Blue Metallic
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
51,516
Stock number:
75162
VIN:
1GTU9EET3LZ337981

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

14,330 miles

$55,000

Great Deal
Joliet, IL
92 mi 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 color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
14,330
Stock number:
G24979A
VIN:
3GTUUEEL1RG353099

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

16,219 miles

$43,500

Great Deal
Joliet, IL
92 mi 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 color:
Onyx Black
Combined gas mileage:
16 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
16,219
Stock number:
G25469A
VIN:
1GTP9EEL9MZ297310

Preparing for a close up...

Photos coming soon

2022 GMC Sierra 1500

AT4 Crew Cab 4WD

43,193 miles

$44,500

Good Deal
Milwaukee, WI
95 mi 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 color:
Onyx Black
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
43,193
Stock number:
PMK14223
VIN:
3GTUUEET6NG504058

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

54,400 miles

$39,977

Fair Deal
Stoughton, WI
46 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Sky
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
54,400
Stock number:
15P2009
VIN:
1GTP9EED1MZ348064

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

13,411 miles

$57,871

Good Deal
Certified Pre-Owned
East Dubuque, IL
52 mi 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 color:
Thunderstorm Gray
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
13,411
Stock number:
RG173707
VIN:
3GTUUEEL7RG173707

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

103,672 miles

$29,717

Great Deal
Fox Lake, IL
74 mi 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 color:
Red
Combined gas mileage:
16 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
103,672
Stock number:
K5521A
VIN:
1GTP9EEL1MZ154366

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

49,772 miles

$40,599

Good Deal
Madison, WI
50 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Exterior color:
ONYX BLACK
Interior color:
JET BLACK W/KALAHARI ACCENTS
Transmission:
Automatic
Mileage:
49,772
Stock number:
I5611A
VIN:
3GTP9EEL8MG163548

Preparing for a close up...

Photos coming soon

2020 GMC Sierra 1500

AT4 Crew Cab 4WD

96,891 miles

$34,500

Good Deal
Gurnee, IL
86 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Gray (Satin Steel Metallic)
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
96,891
Stock number:
G02151A
VIN:
1GTP9EEL2LZ137090

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

31,275 miles

$54,743

Good Deal
Certified Pre-Owned
East Dubuque, IL
52 mi 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 color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
31,275
Stock number:
RG225830
VIN:
3GTUUEEL4RG225830

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

23,792 miles

$44,800

Fair Deal
Lisle, IL
86 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Summit White
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
23,792
Stock number:
398071
VIN:
3GTP9EED6MG398071

Preparing for a close up...

Photos coming soon

2019 GMC Sierra 1500

AT4 Crew Cab 4WD

98,721 miles

$32,741

Good Deal
East Dubuque, IL
52 mi 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 color:
Gray (Satin Steel Metallic)
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black w/Kalahari Accents
Transmission:
8-Speed Automatic
Mileage:
98,721
Stock number:
KG261745
VIN:
3GTP9EEDXKG261745

Preparing for a close up...

Photos coming soon

2020 GMC Sierra 1500

AT4 Crew Cab 4WD

104,499 miles

$30,900

Great Deal
Barrington, IL
76 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
104,499
Stock number:
25562A
VIN:
1GTP9EEL6LZ268670

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

28,106 miles

$51,997

Great Deal
Downers Grove, IL
89 mi away
Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
28,106
Stock number:
P17985
VIN:
1GTUUEE82RZ219553

Sponsored

  1. Home
  2. / Used Cars
  3. / GMC Sierra 1500
  4. / AT4
  5. / Illinois
  6. / Freeport
  • GMC Sierra 1500 SLT in Freeport IL

  • GMC Sierra 1500 Denali in Freeport IL

  • GMC Sierra 1500 AT4 in Freeport IL

  • GMC Sierra 1500 Elevation in Freeport IL

  • GMC Sierra 1500 SLE in Freeport IL

  • GMC Sierra 1500 Base in Freeport IL

  • GMC Sierra 1500 Work Truck in Freeport IL

  • GMC Sierra 1500 SL in Freeport IL

  • GMC Sierra 1500 SLE1 in Freeport IL

  • GMC Sierra 1500 SLE2 in Freeport IL

  • GMC Sierra 1500 in Rockford IL

  • GMC Sierra 1500 in Janesville WI

  • GMC Sierra 1500 in Clinton IA

  • GMC Sierra 1500 in Madison WI

  • GMC Sierra 1500 in Dubuque IA

  • GMC Sierra 1500 in Davenport IA

  • GMC Sierra 1500 in Aurora IL

  • GMC Sierra 1500 in Palatine IL

  • GMC Sierra 1500 in Kenosha WI

  • GMC Sierra 1500 in Freeport IL

  • OBS 1990s-era Chevy and Ford Trucks for Sale in Freeport IL

  • Used GMC Electric Cars for Sale

  • Lifted GMC trucks for sale in Freeport IL

  • Work Trucks for Sale in Freeport IL

  • American Made Trucks For Sale in Freeport IL

  • GM Certified Preowned Vehicles for Sale Near Freeport IL

  • Best Pickup Trucks For Sale in Freeport IL

  • 2019 GMC Sierra 1500 AT4 in Freeport IL

  • All Used Cars

  • Manual Transmission Cars

  • Luxury Cars

  • Cars with Red Interior

  • Cheap Manual Cars

  • Hybrid Cars

  • Sports Cars

  • Electric SUVs

  • Cheap Trucks

  • Small Cars

  • Third Row SUVs

  • Three Quarter Ton Trucks

  • Lifted Trucks

  • Manual Transmission Trucks

  • Diesel Trucks

  • Hybrid SUVs

  • Dually Trucks

  • One Ton Trucks

  • Cheap SUVs

  • Lifted Ford Trucks

  • 4x4 Trucks

  • Work Trucks

  • AWD SUVs

  • Ford Trucks

  • Chevrolet Trucks

  • Toyota Trucks

  • Trucks Under $10,000

  • Cars Under $15,000

  • Sports Cars Under $20,000

  • Trucks Under $20,000

  • 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

  • Kayser Chevrolet Buick GMC

  • Brodhead Automobiles

  • Dearth GMC LLC

  • Bocker Chevrolet GMC, Inc.

  • Ken Nelson Auto Group

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
  • Careers
  • Advertise with CarGurus
  • For dealers
  • Dealer signup
  • Dealer resources
  • Terms
  • Terms of use
  • Privacy policy
  • Interest-based ads
  • Security
  • Help
  • Help center
  • Contact us
Click for the BBB Business Review of this Auto Listing Service in Cambridge MA
    • United States (EN)
    • Estados Unidos (ES)
    • Canada (EN)
    • Canada (FR)
    • United Kingdom

© 2025 CarGurus, Inc., All Rights Reserved.