(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
Your next car is just a chat away.
Try AI Mode
Used Cars for Sale
GMC
Sierra 3500
SLT
Used GMC Sierra 3500 SLT for Sale in Darien, CT
06820
Filters (4)
Items 1 to 2 of 4.
2022 and older
(2)
Automatic
(3)
2006 and newer
(3)
Location & Delivery
Year
Price & Payments
Price selected
Price
Payment
Min Price
Max Price
Price Rating
Good Price
(0)
Great Price
(1)
Price selected
Price
Payment
Min Price
Max Price
Price Rating
Good Price
(0)
Great Price
(1)
Make, Model & Trim
GMC
Models
Sierra 3500
Acadia
(35)
Caballero
Canyon
(25)
Envoy
Envoy XL
(1)
Envoy XUV
G1500
G2500
G3500
Hummer EV
(4)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
Savana 2500
(9)
Savana 3500
Savana 4500
Sierra 1500
(73)
Sierra 2500
(20)
Sierra 3500
(14)
Sierra EV
(4)
Sonoma
Suburban
Syclone
Terrain
(41)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(39)
Yukon XL
(19)
Sierra 3500 Trims
SLT
AT4
(1)
Classic SL
Classic SLE
Classic W/T
Denali
(5)
Denali Ultimate
(2)
Pro
SL
SLE
(2)
SLT
(3)
W/T
SLT Package
Any
Onstar Plus Package
SLT Preferred Package
(1)
LPO, Hitch Package
SLT Premium Plus Package
Sun And Navigation Package
SLT Convenience Package
(3)
License Plate Front Mounting Package
Snow Plow Prep Package
Entertainment Package, Rear Seat DVD Player
Convenience Package
Gooseneck/5th Wheel Prep Package
X31 Off-Road and Protection Package
Texas SLT Premium Package
Driver Alert Package II
(1)
EZ-Lift Tailgate Package
Sierra HD Pro Safety Plus Package
LPO, Cargo Convenience Package
LPO, GMC Interior Protection Package
Heavy Duty Front Spring/Camper Package
X31 Off-Road Package
(2)
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Black Badging Package
SLT Premium Package
Duramax Plus Package
Skid Plate Package, Frame-Mounted Shields
Suspension Package, Off-Road
Texas Edition SLT Premium Plus Package
Heavy-Duty Power Package
Driver Alert Package I
(1)
Gooseneck/5TH Wheel Prep Package -- Hitch Platform to Accept Gooseneck or Fifth Wheel Hitch.
Driver Alert Package
LPO, Protection Package
LPO, Hitch Package, Gooseneck Ball and Chain Tiedown Kit With Case
Z71 Off-Road Package
LPO, On The Job Package
Snow Plow Prep/Camper Package
(2)
Gooseneck/5TH Wheel Package
(1)
LPO, Assist Step and Floor Liner Package
(1)
Gooseneck/5TH Wheel Prep Package
All-Terrain HD Package, For Crew Cab Models Only
Technology Package
(1)
Mocha Steel Metallic Edition
SLT Preferred Equipment Group
Skid Plate Package
LPO, GMC Protection Package
All-Terrain HD Package
Entertainment Package
Graphite Blue Metallic Edition
Add Another Make
GMC
Models
Sierra 3500
Acadia
(35)
Caballero
Canyon
(25)
Envoy
Envoy XL
(1)
Envoy XUV
G1500
G2500
G3500
Hummer EV
(4)
Jimmy
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
Savana 2500
(9)
Savana 3500
Savana 4500
Sierra 1500
(73)
Sierra 2500
(20)
Sierra 3500
(14)
Sierra EV
(4)
Sonoma
Suburban
Syclone
Terrain
(41)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(39)
Yukon XL
(19)
Sierra 3500 Trims
SLT
AT4
(1)
Classic SL
Classic SLE
Classic W/T
Denali
(5)
Denali Ultimate
(2)
Pro
SL
SLE
(2)
SLT
(3)
W/T
SLT Package
Any
Onstar Plus Package
SLT Preferred Package
(1)
LPO, Hitch Package
SLT Premium Plus Package
Sun And Navigation Package
SLT Convenience Package
(3)
License Plate Front Mounting Package
Snow Plow Prep Package
Entertainment Package, Rear Seat DVD Player
Convenience Package
Gooseneck/5th Wheel Prep Package
X31 Off-Road and Protection Package
Texas SLT Premium Package
Driver Alert Package II
(1)
EZ-Lift Tailgate Package
Sierra HD Pro Safety Plus Package
LPO, Cargo Convenience Package
LPO, GMC Interior Protection Package
Heavy Duty Front Spring/Camper Package
X31 Off-Road Package
(2)
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Black Badging Package
SLT Premium Package
Duramax Plus Package
Skid Plate Package, Frame-Mounted Shields
Suspension Package, Off-Road
Texas Edition SLT Premium Plus Package
Heavy-Duty Power Package
Driver Alert Package I
(1)
Gooseneck/5TH Wheel Prep Package -- Hitch Platform to Accept Gooseneck or Fifth Wheel Hitch.
Driver Alert Package
LPO, Protection Package
LPO, Hitch Package, Gooseneck Ball and Chain Tiedown Kit With Case
Z71 Off-Road Package
LPO, On The Job Package
Snow Plow Prep/Camper Package
(2)
Gooseneck/5TH Wheel Package
(1)
LPO, Assist Step and Floor Liner Package
(1)
Gooseneck/5TH Wheel Prep Package
All-Terrain HD Package, For Crew Cab Models Only
Technology Package
(1)
Mocha Steel Metallic Edition
SLT Preferred Equipment Group
Skid Plate Package
LPO, GMC Protection Package
All-Terrain HD Package
Entertainment Package
Graphite Blue Metallic Edition
Add Another Make
Mileage
Mileage
Any
Mileage
Any
Condition
(1 selected)
New
(0)
Used
(3)
Manufacturer Certified
(0)
Third-Party Certified
(0)
Certified Program
Learn more
New
(0)
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
Used
2024 GMC Sierra 3500
SLT
17K mi
66,895
See payment
No Accidents
Price Drop
Used
2020 GMC Sierra 3500
SLT
75K mi
46,791
See payment
Great Price
Dealer Fees Included
No Accidents
Used
2022 GMC Sierra 3500
SLT
100K mi
48,791
See payment
Dealer Fees Included
No Accidents
Consider Buying New
2026 GMC Sierra 1500
Elevation
10 mi
68,145
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 3500 SLT for Sale
Used 2026 GMC Sierra 3500 SLT for Sale
Used 2024 GMC Sierra 3500 SLT for Sale
1 for sale
Used 2025 GMC Sierra 3500 SLT for Sale
View All Similar Vehicles
Used GMC Sierra 3500 SLT in Nearby Cities
Used GMC Sierra 3500 SLT For Sale in Hartford
3 for sale
<!--{"relevance":[true,{"relevanceVersion":"relevance-v5"}],"cypress_e2e":[false,{}],"cypressE2e":[false,{}]}-->
Learn more
