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Used Cars for SaleGMCSierra 2500

Used GMC Sierra 2500 for Sale in O Fallon, MO

63366

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GMC Certified Pre-Owned(33)

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AT4 (33)

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Sponsored by O'Fallon Buick GMC

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Used 2023 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used 2023 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

49,900

Good Price

O'Fallon Buick GMC

6View Vehicles

117 Matches

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Certified 2024 GMC Sierra 2500 Pro

Certified

2024 GMC Sierra 2500

Pro
5K mi

51,995

Great Price

Can be shipped to

Sponsored by Laura Chevrolet Buick GMC of Sullivan

47.36 mi. away

Online Paperwork
Delivery

Used 2016 GMC Sierra 2500 Denali w/ Driver Alert Package

Used

2016 GMC Sierra 2500

Denali
127K mi

30,995

Good Price

Sponsored by Laura Buick GMC, Inc.

38.98 mi. away

Online Paperwork
Delivery

Certified 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Certified

2024 GMC Sierra 2500

AT4
49K mi

65,995

Great Price

Sponsored by Laura Buick GMC, Inc.

38.98 mi. away

Online Paperwork
Delivery

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and Within Budget

Monthly Payment

Down Payment

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Based on 4.5% APR for mos.Update Settings

Price Drop

Used 2024 GMC Sierra 2500 SLT w/ SLT Premium Package

Used

2024 GMC Sierra 2500

SLT
25K mi

59,600

Great Price

O'Fallon Buick GMC

4.76 mi. away

Online Paperwork

Used 2024 GMC Sierra 2500 Denali Ultimate

Used

2024 GMC Sierra 2500

Denali Ultimate
6K mi

91,960

See payment

Private Seller Exchange

Buy Online. Clean title. No Hassle

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New 2026 GMC Sierra 2500 Denali Ultimate

Consider New, Similar Payment

2026 GMC Sierra 2500

Denali Ultimate
7 mi

98,649

LAURA BUICK GMC

38.98 mi. away

Online Paperwork
Delivery

Price Drop

Used 2021 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used

2021 GMC Sierra 2500

Denali
45K mi

56,971

See payment

Great Price

Frank Leta Honda

6.37 mi. away

Item 1 of 10.

How many passenger seats do you need in your truck?

Do you want

Adaptive Cruise Control?

Automatically adjusts your speed to maintain a safe distance from the car ahead.

Do you want

Backup Camera?

See behind your vehicle while reversing with a live video feed to avoid obstacles.

Do you want

Bluetooth, Hands-Free?

Make and receive calls safely through your car's audio system without touching your phone.

Do you want

Cross Traffic Alert?

Warns you of approaching vehicles from the sides when backing out of a parking spot.

Do you want

Keyless Start?

Start your car with the push of a button while the key fob stays in your pocket or bag.

Do you want

Lane Departure Warning?

Alerts you if your car begins to drift out of its lane without signaling.

Do you want

Premium Audio?

Enjoy high-quality sound with advanced speakers for a better listening experience.

Do you want

Remote Engine Start?

Start your car from a distance to preheat or cool the cabin before you get in.

Do you want

Security System?

Alerts you with a loud alarm if someone tries to break into your vehicle.

Newly Listed

Used 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used

2025 GMC Sierra 2500

AT4
1K mi

71,418

See payment

Great Price

Lou Fusz Buick GMC

18.61 mi. away

Sponsored

Used 2023 GMC Sierra 2500 Denali

Used

2023 GMC Sierra 2500

Denali
27K mi

61,000

Good Price

Newly Listed

Used 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used

2025 GMC Sierra 2500

AT4
745 mi

78,765

See payment

Great Price

Lou Fusz Buick GMC

18.61 mi. away

Used 2021 GMC Sierra 2500 SLE w/ SLE Value Package;

Used

2021 GMC Sierra 2500

SLE
52K mi

48,000

See payment

Great Price

Clement Supercenter

8.79 mi. away

Used 2022 GMC Sierra 2500 SLT w/ SLT Convenience Package

Used

2022 GMC Sierra 2500

SLT
37K mi

57,000

See payment

Great Price

Clement Supercenter

8.79 mi. away

Used 2018 GMC Sierra 2500 Denali

Used

2018 GMC Sierra 2500

Denali
54K mi

45,991

Great Price

Jim Butler Chevrolet

25.44 mi. away

Online Paperwork
Delivery

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Newly Listed

Certified 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package

Certified

2024 GMC Sierra 2500

Denali
6K mi

69,995

Great Price

Laura Buick GMC, Inc.

38.98 mi. away

Online Paperwork
Delivery

Newly Listed

Certified 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Certified

2024 GMC Sierra 2500

AT4
2K mi

77,995

Great Price

Laura Buick GMC, Inc.

38.98 mi. away

Online Paperwork
Delivery

Used 2025 GMC Sierra 2500 SLE w/ SLE Value Package;

Used

2025 GMC Sierra 2500

SLE
6K mi

55,900

Great Price

Behlmann Buick GMC

18.42 mi. away

Online Paperwork

Used 2022 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Ford Blue Certified

2022 GMC Sierra 2500

Denali
12K mi

69,000

Great Price

Weber Ford

31.3 mi. away

Online Paperwork

Price Drop

Used 2025 GMC Sierra 2500 Denali Ultimate w/ Max Trailering Package

Used

2025 GMC Sierra 2500

Denali Ultimate
797 mi

84,994

See payment

Suntrup Buick GMC

7.51 mi. away

Used 2017 GMC Sierra 2500 2WD Regular Cab w/ Sierra Convenience Package

Used

2017 GMC Sierra 2500

2WD Regular Cab
113K mi

17,795

See payment

Great Price

STLCarZ

8.56 mi. away

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Used 2023 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used

2023 GMC Sierra 2500

AT4
119K mi

49,900

Good Price

O'Fallon Buick GMC

4.76 mi. away

Online Paperwork

Price Drop

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used

2020 GMC Sierra 2500

Denali
36K mi

56,993

See payment

Great Price

Clement Chrysler Dodge Jeep Ram Florissant

21.78 mi. away

Used 2025 GMC Sierra 2500 AT4X

Used

2025 GMC Sierra 2500

AT4X
4K mi

85,000

See payment

Good Price

Private Seller Exchange

18.36 mi. away

Buy Online. Clean title. No Hassle

Price Drop

Used 2025 GMC Sierra 2500 Denali w/ Max Trailering Package

Used

2025 GMC Sierra 2500

Denali
9K mi

73,105

See payment

Great Price

AutoCenters Nissan

41.95 mi. away

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Used 2023 GMC Sierra 2500 SLT w/ SLT Premium Package

Used

2023 GMC Sierra 2500

SLT
63K mi

53,000

See payment

Great Price

Clement Supercenter

8.79 mi. away

Used 2020 GMC Sierra 2500 SLT

Used

2020 GMC Sierra 2500

SLT
46K mi

51,343

See payment

Great Price

Clement Chrysler Dodge Jeep Ram Florissant

21.78 mi. away

Price Drop

Used 2022 GMC Sierra 2500 Denali w/ LPO, GMC Protection Package

Used

2022 GMC Sierra 2500

Denali
44K mi

59,499

See payment

Great Price

Clement Chrysler Dodge Jeep Ram Florissant

21.78 mi. away

Used 2023 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used

2023 GMC Sierra 2500

AT4
46K mi

64,880

See payment

Good Price

Johnny Londoff Autoplex

2.97 mi. away

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