(opens in new window)

Sign In

Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
Find Local Dealers

Skip to vehicle Listings

Online car buying built around you. Shop Now

Used Cars for SaleGMCSierra 2500

Used GMC Sierra 2500 for Sale in South Portland, ME

04106

|Filters (3)

Items 1 to 2 of 9.

Location & Delivery

Year

Price & Payments

Min Price

Max Price

Price Rating

Good Price (9)

Great Price (20)

Make, Model & Trim

GMC

Models

Sierra 2500

Acadia (48)

Caballero

Canyon (24)

Envoy

Envoy XL

Envoy XUV

G1500

G2500

G3500

Hummer EV (1)

Jimmy

Other GMC Models

S15 Jimmy

S15 Pickup

Safari

Savana 1500

Savana 2500 (5)

Savana 3500 (2)

Savana 4500

Sierra 1500 (121)

Sierra 2500 (42)

Sierra 3500 (18)

Sierra EV

Sonoma

Suburban

Syclone

Terrain (30)

TopKick C4500

TopKick C5500

Typhoon

Yukon (21)

Yukon XL (12)

Sierra 2500 Trims

Any

AT4 (10)

AT4X (2)

Classic SL

Classic SLE

Classic SLT

Classic W/T

Denali (14)

Denali Ultimate (1)

Pro (2)

SL

SLE (6)

SLT (5)

W/T

Mileage

Condition (1 selected)

New (108)

Used (42)

Manufacturer Certified (7)

Third-Party Certified (1)

Certified Program

Learn more

Color

Drive Type

Body Style

Truck Cab Size

Crew Cab (33)

Extended Cab (2)

Regular Cab (1)

Truck Bed Length

Short (0)

Medium (33)

Long (2)

Include unspecified lengths (1)

Vehicle History

Features

Fuel Type

Fuel Economy

Transmission

Cylinders

Engine Displacement

Number of Seats

Number of Doors

Ways to Purchase

Seller Type

Sponsored by Key GMC of Somersworth

Hide

360°

New 2026 GMC Sierra 2500 Denali w/ Snow Plow Prep/Camper Package

New 2026 GMC Sierra 2500 Denali w/ Snow Plow Prep/Camper Package

74,770

MSRP$79,270

See estimated payment

Incentive

Similar Match

Key GMC of Somersworth

43View Vehicles

42 Matches

Sort By:

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package

Used

2024 GMC Sierra 2500

Denali
13K mi

73,495

See payment

Sponsored by Seacoast Mazda

46.34 mi. away

Used 2024 GMC Sierra 2500 SLE

Used

2024 GMC Sierra 2500

SLE
45K mi

53,995

See payment

Good PriceNo Accidents

Sponsored by Harpswell Auto Sales

19.64 mi. away

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

Used

2023 GMC Sierra 2500

AT4
68K mi

58,995

See payment

Sponsored by Harpswell Auto Sales

19.64 mi. away

My Wallet

Find Your Vehicle Faster

and Within Budget

Monthly Payment

Down Payment

Get My Kelley Blue Book® Car Value

$

Based on 4.5% APR for mos.Update Settings

Price Drop

Used 2019 GMC Sierra 2500 Denali w/ Suspension Package, Off-Road

Used

2019 GMC Sierra 2500

Denali
61K mi

42,499

See payment

Great PriceNo Accidents

APLUS TRUCK SALES, INC

18.17 mi. away

Certified 2024 GMC Sierra 2500 Denali w/ Technology Package

Certified

2024 GMC Sierra 2500

Denali
14K mi

68,875

See payment

Good PriceNo Accidents

Bill Dodge Auto Group Westbrook

4.5 mi. away

Advertisement

New 2026 GMC Sierra 2500 SLT w/ SLT Premium Package

Consider New, Similar Payment

2026 GMC Sierra 2500

SLT
3 mi

74,705

See details

Weirs Buick GMC

19.11 mi. away

Used 2024 GMC Sierra 2500 AT4X w/ Snow Plow Prep/Camper Package

Used

2024 GMC Sierra 2500

AT4X
20K mi

74,750

See payment

Good PriceNo Accidents

Patriot Acura

5.02 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.

Price Drop

Used 2024 GMC Sierra 2500 SLE w/ SLE Value Package;

Used

2024 GMC Sierra 2500

SLE
53K mi

46,654

See payment

Great PriceNo Accidents

Bill Dodge Auto Group Westbrook

4.5 mi. away

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used

2020 GMC Sierra 2500

Denali
88K mi

50,999

See payment

Great PriceNo Accidents

APLUS TRUCK SALES, INC

18.17 mi. away

Used 2024 GMC Sierra 2500 SLE w/ SLE Convenience Package

Used

2024 GMC Sierra 2500

SLE
140 mi

65,995

See payment

Good PriceNo Accidents

APLUS TRUCK SALES, INC

18.17 mi. away

Used 2025 GMC Sierra 2500 AT4X w/ Snow Plow Prep/Camper Package

Used

2025 GMC Sierra 2500

AT4X
1K mi

81,992

See payment

Great PriceNo Accidents

Rowe Auburn

31.69 mi. away

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package

Used

2024 GMC Sierra 2500

Denali
36K mi

65,991

See payment

Great PriceNo Accidents

Rowe Ford Sales

4.5 mi. away

Used 2023 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Ford Blue Certified

2023 GMC Sierra 2500

Denali
82K mi

56,658

See payment

Great PriceNo Accidents

Yankee Ford

0.83 mi. away

Advertisement

360°

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

Used

2024 GMC Sierra 2500

AT4
22K mi

73,495

See payment

Great PriceNo Accidents

Portsmouth Ford

46.08 mi. away

Certified 2022 GMC Sierra 2500 SLT

CarBravo Certified

2022 GMC Sierra 2500

SLT
36K mi

50,101

See payment

Great PriceNo Accidents

Weirs Motor Sales, Inc

19.11 mi. away

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used

2020 GMC Sierra 2500

Denali
96K mi

48,999

See payment

Great PriceNo Accidents

APLUS TRUCK SALES, INC

18.17 mi. away

Newly Listed

Used 2020 GMC Sierra 2500 4x4 Crew Cab w/ Convenience Package

Used

2020 GMC Sierra 2500

4x4 Crew Cab
118K mi

29,998

See payment

Good PriceNo Accidents

Goodwin Chevrolet Mazda

23.9 mi. away

Used 2018 GMC Sierra 2500 4x4 Crew Cab

Used

2018 GMC Sierra 2500

4x4 Crew Cab
53K mi

32,495

See payment

Good PriceNo Accidents

Harpswell Auto Sales

19.64 mi. away

Price Drop

Used 2024 GMC Sierra 2500 Pro w/ 1SA Pro Safety Plus Package

Used

2024 GMC Sierra 2500

Pro
58K mi

41,994

See payment

Great Price

LEE GMC

31.69 mi. away

Advertisement

Used 2021 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used

2021 GMC Sierra 2500

AT4
80K mi

51,888

See payment

Great PriceNo Accidents

Emerson Chevrolet Inc.

34.79 mi. away

Used 2023 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used

2023 GMC Sierra 2500

Denali
18K mi

62,500

See payment

Private Seller Exchange

41.96 mi. away

Buy Online. Clean title. No Hassle

Certified 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package

CarBravo Certified

2020 GMC Sierra 2500

Denali
99K mi

51,595

See payment

Good PriceNo Accidents

Weirs Motor Sales, Inc

19.11 mi. away

Price Drop

Used 2023 GMC Sierra 2500 Pro w/ Convenience Package

Used

2023 GMC Sierra 2500

Pro
50K mi

43,999

See payment

APLUS TRUCK SALES, INC

18.17 mi. away

Advertisement

Used 2024 GMC Sierra 2500 SLE

Used

2024 GMC Sierra 2500

SLE
45K mi

53,995

See payment

Good PriceNo Accidents

Harpswell Auto Sales

19.64 mi. away

Price Drop

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

CarBravo Certified

2025 GMC Sierra 2500

AT4
24K mi

70,390

See payment

Weirs Motor Sales, Inc

19.11 mi. away

Used 2023 GMC Sierra 2500 SLE w/ SLE Convenience Package

Used

2023 GMC Sierra 2500

SLE
48K mi

52,499

See payment

APLUS TRUCK SALES, INC

18.17 mi. away

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package

Used

2024 GMC Sierra 2500

Denali
13K mi

73,495

See payment

Seacoast Mazda

46.34 mi. away

Advertisement

Shop for a Car

Used Cars For Sale
Certified Cars
Car Deals

Car Research

Trade-In Values and Car Pricing
Car Subscription Services

About Us

Company Information
Corporate Information
Jobs at Autotrader
Become an Autotrader Dealer
Press Room
Site Map
Contact Us
About Autotrader
Do Not Sell or Share My Personal Information
Limit the Use of My Sensitive Personal Information
Fraud Awareness
Manage Cookies

Autotrader Affiliates

Classic Cars & Trucks for Sale
Motorcycles for Sale
RVs for Sale
Cars for Bad Credit Buyers
Find Cars for Sale in Australia

Download on the Apple App Store

Get it on Google Play

Follow

By using this service, you accept the terms of our Visitor Agreement. Privacy Statement. Accessibility Statement.

©2026 Autotrader, Inc. All Rights Reserved. "Autotrader" is a registered trademark of TPI Holdings, Inc. used under exclusive license.