(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
SLT
Used GMC Sierra 2500 SLT for Sale in Willimantic, CT
06226
Filters (4)
Items 1 to 2 of 8.
EV & Hybrid
Purchase Online
(1)
GMC Certified Pre-Owned
(1)
Black
(3)
AWD/4WD
(8)
Security System
(8)
2012 and newer
(7)
Location & Delivery
Year
Price & Payments
Price selected
Price
Payment
Min Price
Max Price
Price selected
Price
Payment
Min Price
Max Price
Make, Model & Trim
GMC
Models
Sierra 2500
Acadia
(112)
Caballero
Canyon
(63)
Envoy
Envoy XL
Envoy XUV
G1500
G2500
G3500
Hummer EV
(11)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
(1)
Savana 2500
(21)
Savana 3500
(8)
Savana 4500
Sierra 1500
(338)
Sierra 2500
(70)
Sierra 3500
(26)
Sierra EV
(3)
Sonoma
Suburban
Syclone
Terrain
(103)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(74)
Yukon XL
(21)
Sierra 2500 Trims
SLT
AT4
(11)
AT4X
(3)
Classic SL
Classic SLE
Classic SLT
Classic W/T
Denali
(26)
Denali Ultimate
(8)
Pro
(5)
SL
SLE
(6)
SLT
(8)
W/T
(1)
SLT Package
Any
Onstar Plus Package
SLT Preferred Package
(1)
SLT Premium Plus Package
LPO, Hitch Package
All Terrain HD Package
(1)
Sun And Navigation Package
SLT Convenience Package
(2)
Convenience Package
Snow Plow Prep Package
(3)
Max Trailering Package
License Plate Front Mounting Package
(1)
Gooseneck/5th Wheel Prep Package
X31 Off-Road and Protection Package
(1)
EZ-Lift Tailgate Package
Texas SLT Premium Package
Driver Alert Package II
(1)
LPO, Chrome Appearance Package
LPO, Cargo Convenience Package
(1)
LPO, GMC Interior Protection Package
Sierra HD Pro Safety Plus Package
(1)
Heavy Duty Front Spring/Camper Package
(1)
X31 Off-Road Package
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Black Badging Package
SLT Premium Package
(1)
Suspension Package, Off-Road
(2)
Skid Plate Package, Frame-Mounted Shields
Duramax Plus Package
(2)
Texas Edition SLT Premium Plus Package
Heavy-Duty Power Package
Driver Alert Package
(1)
Z71 Off-Road Package
LPO, Protection Package
Driver Alert Package I
All Terrain X HD Package
Deep Indigo Metallic Edition
LPO, On The Job Package
Snow Plow Prep/Camper Package
(2)
Gooseneck/5TH Wheel Prep Package
Gooseneck/5TH Wheel Package
(2)
LPO, Assist Step and Floor Liner Package
Mocha Steel Metallic Edition
Technology Package
SLT Preferred Equipment Group
Skid Plate Package
LPO, GMC Protection Package
2500HD SLT Gas Premium Plus Package
All-Terrain HD Package
Entertainment Package
Graphite Blue Metallic Edition
Add Another Make
GMC
Models
Sierra 2500
Acadia
(112)
Caballero
Canyon
(63)
Envoy
Envoy XL
Envoy XUV
G1500
G2500
G3500
Hummer EV
(11)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
(1)
Savana 2500
(21)
Savana 3500
(8)
Savana 4500
Sierra 1500
(338)
Sierra 2500
(70)
Sierra 3500
(26)
Sierra EV
(3)
Sonoma
Suburban
Syclone
Terrain
(103)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(74)
Yukon XL
(21)
Sierra 2500 Trims
SLT
AT4
(11)
AT4X
(3)
Classic SL
Classic SLE
Classic SLT
Classic W/T
Denali
(26)
Denali Ultimate
(8)
Pro
(5)
SL
SLE
(6)
SLT
(8)
W/T
(1)
SLT Package
Any
Onstar Plus Package
SLT Preferred Package
(1)
SLT Premium Plus Package
LPO, Hitch Package
All Terrain HD Package
(1)
Sun And Navigation Package
SLT Convenience Package
(2)
Convenience Package
Snow Plow Prep Package
(3)
Max Trailering Package
License Plate Front Mounting Package
(1)
Gooseneck/5th Wheel Prep Package
X31 Off-Road and Protection Package
(1)
EZ-Lift Tailgate Package
Texas SLT Premium Package
Driver Alert Package II
(1)
LPO, Chrome Appearance Package
LPO, Cargo Convenience Package
(1)
LPO, GMC Interior Protection Package
Sierra HD Pro Safety Plus Package
(1)
Heavy Duty Front Spring/Camper Package
(1)
X31 Off-Road Package
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Black Badging Package
SLT Premium Package
(1)
Suspension Package, Off-Road
(2)
Skid Plate Package, Frame-Mounted Shields
Duramax Plus Package
(2)
Texas Edition SLT Premium Plus Package
Heavy-Duty Power Package
Driver Alert Package
(1)
Z71 Off-Road Package
LPO, Protection Package
Driver Alert Package I
All Terrain X HD Package
Deep Indigo Metallic Edition
LPO, On The Job Package
Snow Plow Prep/Camper Package
(2)
Gooseneck/5TH Wheel Prep Package
Gooseneck/5TH Wheel Package
(2)
LPO, Assist Step and Floor Liner Package
Mocha Steel Metallic Edition
Technology Package
SLT Preferred Equipment Group
Skid Plate Package
LPO, GMC Protection Package
2500HD SLT Gas Premium Plus Package
All-Terrain HD Package
Entertainment Package
Graphite Blue Metallic Edition
Add Another Make
Mileage
Mileage
Any
Mileage
Any
Condition
(1 selected)
New
(26)
Used
(8)
Manufacturer Certified
(1)
Third-Party Certified
(0)
Certified Program
Learn more
New
(26)
Used
(8)
Manufacturer Certified
(1)
Third-Party Certified
(0)
Certified Program
Learn more
Color
Loading...
Drive Type
Loading...
Body Style
Loading...
Truck Cab Size
Crew Cab
(2)
Extended Cab
(0)
Regular Cab
(0)
Crew Cab
(2)
Extended Cab
(0)
Regular Cab
(0)
Truck Bed Length
Short
(0)
Medium
(7)
Long
(1)
Include unspecified lengths
(0)
Short
(0)
Medium
(7)
Long
(1)
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...
8 Matches
Sort By:
Relevance
Price - Lowest
Price - Highest
Distance - Closest
Date - Oldest
Date - Newest
Mileage - Lowest
Mileage - Highest
Year - Oldest
Year - Newest
Used
2022 GMC Sierra 2500
SLT
37K mi
51,745
See payment
No Accidents
Used
2023 GMC Sierra 2500
SLT
20K mi
65,500
See payment
No Accidents
CarBravo Certified
2023 GMC Sierra 2500
SLT
17K mi
54,988
See payment
No Accidents
My Wallet
Find it Fast.
Keep it Affordable.
Monthly Payment
Credit Rating
Excellent (740-900)
Credit Rating
Excellent (740-900)
Very Good (700-739)
Good (670-699)
Fair (630-669)
Rebuilding (580-629)
Verify My Credit
Down Payment
Trade-In Value
$0
Trade-In Value
Est. Trade-In Value
Get My Kelley Blue Book® CarValue
Amount Owed on Trade-In
Get My Payoff Quote
Get My Kelley Blue Book® Car Value
$
Based on 4.5% APR for mos.
Update Settings
Search Available Cars
Price Drop
Used
2017 GMC Sierra 2500
SLT
116K mi
26,995
See payment
Dealer Fees Included
No Accidents
Used
2023 GMC Sierra 2500
SLT
20K mi
65,500
See payment
No Accidents
Consider New, Similar Payment
2026 GMC Sierra 2500
SLT
27 mi
78,733
Advertisement
Used
2022 GMC Sierra 2500
SLT
37K mi
51,745
See payment
No Accidents
Used
2019 GMC Sierra 2500
SLT
88K mi
45,499
See payment
No Accidents
Used
2016 GMC Sierra 2500
SLT
136K mi
37,980
See payment
Used
2024 GMC Sierra 2500
SLT
78K mi
52,994
See payment
No Accidents
Newly Listed
Used
2011 GMC Sierra 2500
SLT
145K mi
Contact Dealer For Price
See payment
No Accidents
You have reached the maximum results allowed for a search. Please update your search criteria.
View Nationwide Inventory
Similar Vehicles for Sale
Used 2023 GMC Sierra 2500 SLT for Sale
2 for sale
Used 2025 GMC Sierra 2500 SLT for Sale
Used 2020 GMC Sierra 2500 SLT for Sale
Used 2024 GMC Sierra 2500 SLT for Sale
1 for sale
Used 2026 GMC Sierra 2500 SLT for Sale
View All Similar Vehicles
Used GMC Sierra 2500 SLT in Nearby Cities
Used GMC Sierra 2500 SLT For Sale in Hartford
6 for sale
<!--{"relevance":[false,{}]}-->
Learn more
