(opens in new window)
Sign In
Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
Research & Tools
Helpful Links
Find Local Dealers
Best Car Deals
Best Truck Deals
Best SUV Deals
Buy Cars Online
Car Research & News
Research & Information
New & Future Models
Trim Comparisons
Car Buying Tools
Buying & Selling Tips
Car Payment Calculator
Affordability Calculator
Car Lease Calculator
See if you can save on car insurance on KBB.com
Get a Kelley Blue Book® Instant Cash Offer
Run a free AutoCheck Vehicle History Report with Experian
AI Mode
Beta
Home
Used Cars
New Cars
Private Seller Cars
Sell My Car
Instant Cash Offer
Research & Tools
AI Mode
Beta
Skip to vehicle Listings
Online car buying built around you.
Shop Now
Used Cars for Sale
GMC
Sierra 2500
AT4X
Used GMC Sierra 2500 AT4X for Sale in Newtown, CT
06470
Filters (4)
Items 1 to 2 of 4.
AWD/4WD
(3)
Black
(2)
2010 and newer
(3)
Location & Delivery
Year
Price & Payments
Price selected
Price
Payment
Min Price
Max Price
Price Rating
Good Price
(0)
Great Price
(3)
Price selected
Price
Payment
Min Price
Max Price
Price Rating
Good Price
(0)
Great Price
(3)
Make, Model & Trim
GMC
Models
Sierra 2500
Acadia
(50)
Caballero
Canyon
(24)
Envoy
Envoy XL
(1)
Envoy XUV
G1500
G2500
G3500
Hummer EV
(7)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
Savana 2500
(13)
Savana 3500
(1)
Savana 4500
Sierra 1500
(97)
Sierra 2500
(45)
Sierra 3500
(14)
Sierra EV
(7)
Sonoma
Suburban
Syclone
Terrain
(25)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(23)
Yukon XL
(12)
Sierra 2500 Trims
AT4X
AT4
(9)
AT4X
(3)
Classic SL
Classic SLE
Classic SLT
Classic W/T
Denali
(15)
Denali Ultimate
(12)
Pro
(1)
SL
SLE
(3)
SLT
(2)
W/T
AT4X Package
Any
LPO, Hitch Package
Gooseneck/5th Wheel Prep Package
(3)
LPO, Cargo Convenience Package
LPO, Black Badging Package
AT4X AEV Edition
Snow Plow Prep/Camper Package
(1)
Add Another Make
GMC
Models
Sierra 2500
Acadia
(50)
Caballero
Canyon
(24)
Envoy
Envoy XL
(1)
Envoy XUV
G1500
G2500
G3500
Hummer EV
(7)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
Savana 2500
(13)
Savana 3500
(1)
Savana 4500
Sierra 1500
(97)
Sierra 2500
(45)
Sierra 3500
(14)
Sierra EV
(7)
Sonoma
Suburban
Syclone
Terrain
(25)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(23)
Yukon XL
(12)
Sierra 2500 Trims
AT4X
AT4
(9)
AT4X
(3)
Classic SL
Classic SLE
Classic SLT
Classic W/T
Denali
(15)
Denali Ultimate
(12)
Pro
(1)
SL
SLE
(3)
SLT
(2)
W/T
AT4X Package
Any
LPO, Hitch Package
Gooseneck/5th Wheel Prep Package
(3)
LPO, Cargo Convenience Package
LPO, Black Badging Package
AT4X AEV Edition
Snow Plow Prep/Camper Package
(1)
Add Another Make
Mileage
Mileage
Any
Mileage
Any
Condition
(1 selected)
New
(4)
Used
(3)
Manufacturer Certified
(0)
Third-Party Certified
(0)
Certified Program
Learn more
New
(4)
Used
(3)
Manufacturer Certified
(0)
Third-Party Certified
(0)
Certified Program
Learn more
Color
Loading...
Drive Type
Loading...
Body Style
Loading...
Truck Cab Size
Crew Cab
(3)
Extended Cab
(0)
Regular Cab
(0)
Crew Cab
(3)
Extended Cab
(0)
Regular Cab
(0)
Truck Bed Length
Short
(0)
Medium
(3)
Long
(0)
Include unspecified lengths
(0)
Short
(0)
Medium
(3)
Long
(0)
Include unspecified lengths
(0)
Vehicle History
Loading...
Features
Loading...
Fuel Type
Loading...
Fuel Economy
Loading...
Transmission
Loading...
Cylinders
Loading...
Engine Displacement
Loading...
Number of Seats
Loading...
Number of Doors
Loading...
Purchase Options
Seller Type
Loading...
3 Matches
Sort By:
Relevance
Price - Lowest
Price - Highest
Distance - Closest
Date - Oldest
Date - Newest
Mileage - Lowest
Mileage - Highest
Year - Oldest
Year - Newest
Newly Listed
Used
2025 GMC Sierra 2500
AT4X
128 mi
88,000
See payment
Great Price
Price Drop
Used
2025 GMC Sierra 2500
AT4X
30K mi
77,000
See payment
Great Price
No Accidents
Price Drop
Used
2024 GMC Sierra 2500
AT4X
30K mi
74,000
See payment
Great Price
No Accidents
Consider New, Similar Payment
2025 GMC Sierra 2500
Denali
9 mi
83,980
Similar Vehicles for Sale
Used 2024 GMC Sierra 2500 AT4X for Sale
1 for sale
Used 2026 GMC Sierra 2500 AT4X for Sale
Used 2025 GMC Sierra 2500 AT4X for Sale
2 for sale
Used GMC Sierra 2500 AT4X in Nearby Cities
Used GMC Sierra 2500 AT4X For Sale in Hartford
4 for sale
<!--{"relevance":[false,{"relevanceVersion":"default"}]}-->
Learn more
Learn moreLearn more
