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Used Cars for Sale
GMC
Sierra 3500
SLT
Used GMC Sierra 3500 SLT for Sale in Boulder, CO
80302
Filters (4)
Items 1 to 2 of 7.
Purchase Online
(1)
2018 and older
(1)
Black
(2)
AWD/4WD
(10)
Cruise Control
(10)
2015 and newer
(10)
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Good Price
(3)
Great Price
(5)
Price
Payment
Min Price
Max Price
Price Rating
Good Price
(3)
Great Price
(5)
Make, Model & Trim
GMC
Models
Sierra 3500
Acadia
(79)
Caballero
Canyon
(52)
Envoy
(1)
Envoy XL
Envoy XUV
G1500
G2500
G3500
(1)
Hummer EV
(12)
Jimmy
(1)
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
(1)
Savana 1500
(3)
Savana 2500
(5)
Savana 3500
(13)
Savana 4500
Sierra 1500
(318)
Sierra 2500
(101)
Sierra 3500
(68)
Sierra EV
(1)
Sonoma
Suburban
Syclone
Terrain
(106)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(116)
Yukon XL
(67)
Sierra 3500 Trims
SLT
AT4
(10)
Classic SL
Classic SLE
Classic W/T
Denali
(32)
Denali Ultimate
(5)
Pro
(1)
SL
(1)
SLE
(5)
SLT
(10)
W/T
(2)
SLT Package
Any
Onstar Plus Package
SLT Preferred Package
(2)
LPO, Hitch Package
(1)
SLT Premium Plus Package
Sun And Navigation Package
SLT Convenience Package
(5)
License Plate Front Mounting Package
Snow Plow Prep Package
Entertainment Package, Rear Seat DVD Player
Convenience Package
Gooseneck/5th Wheel Prep Package
(4)
X31 Off-Road and Protection Package
(1)
Texas SLT Premium Package
Driver Alert Package II
(2)
EZ-Lift Tailgate Package
Sierra HD Pro Safety Plus Package
(1)
LPO, Cargo Convenience Package
LPO, GMC Interior Protection Package
Heavy Duty Front Spring/Camper Package
(2)
X31 Off-Road Package
(4)
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Black Badging Package
SLT Premium Package
(2)
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
(2)
Driver Alert Package
LPO, Protection Package
Gooseneck/5TH Wheel Prep Package -- Hitch Platform to Accept Gooseneck or Fifth Wheel Hitch.
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
Gooseneck/5TH Wheel Package
(1)
Gooseneck/5TH Wheel Prep Package
(4)
LPO, Assist Step and Floor Liner 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
(79)
Caballero
Canyon
(52)
Envoy
(1)
Envoy XL
Envoy XUV
G1500
G2500
G3500
(1)
Hummer EV
(12)
Jimmy
(1)
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
(1)
Savana 1500
(3)
Savana 2500
(5)
Savana 3500
(13)
Savana 4500
Sierra 1500
(318)
Sierra 2500
(101)
Sierra 3500
(68)
Sierra EV
(1)
Sonoma
Suburban
Syclone
Terrain
(106)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(116)
Yukon XL
(67)
Sierra 3500 Trims
SLT
AT4
(10)
Classic SL
Classic SLE
Classic W/T
Denali
(32)
Denali Ultimate
(5)
Pro
(1)
SL
(1)
SLE
(5)
SLT
(10)
W/T
(2)
SLT Package
Any
Onstar Plus Package
SLT Preferred Package
(2)
LPO, Hitch Package
(1)
SLT Premium Plus Package
Sun And Navigation Package
SLT Convenience Package
(5)
License Plate Front Mounting Package
Snow Plow Prep Package
Entertainment Package, Rear Seat DVD Player
Convenience Package
Gooseneck/5th Wheel Prep Package
(4)
X31 Off-Road and Protection Package
(1)
Texas SLT Premium Package
Driver Alert Package II
(2)
EZ-Lift Tailgate Package
Sierra HD Pro Safety Plus Package
(1)
LPO, Cargo Convenience Package
LPO, GMC Interior Protection Package
Heavy Duty Front Spring/Camper Package
(2)
X31 Off-Road Package
(4)
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Black Badging Package
SLT Premium Package
(2)
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
(2)
Driver Alert Package
LPO, Protection Package
Gooseneck/5TH Wheel Prep Package -- Hitch Platform to Accept Gooseneck or Fifth Wheel Hitch.
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
Gooseneck/5TH Wheel Package
(1)
Gooseneck/5TH Wheel Prep Package
(4)
LPO, Assist Step and Floor Liner 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
(4)
Used
(10)
Manufacturer Certified
(0)
Third-Party Certified
(0)
Certified Program
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New
(4)
Used
(10)
Manufacturer Certified
(0)
Third-Party Certified
(0)
Certified Program
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Body Style
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Truck Cab Size
Crew Cab
(10)
Extended Cab
(0)
Regular Cab
(0)
Crew Cab
(10)
Extended Cab
(0)
Regular Cab
(0)
Truck Bed Length
Short
(0)
Medium
(5)
Long
(5)
Include unspecified lengths
(0)
Short
(0)
Medium
(5)
Long
(5)
Include unspecified lengths
(0)
Vehicle History
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Features
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Fuel Economy
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Transmission
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Cylinders
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Engine Displacement
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Number of Seats
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Purchase Options
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Used 2024 GMC Sierra 3500 SLT
62,997
Great Price
Similar Match
70
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Newly Listed
Used
2024 GMC Sierra 3500
SLT
59K mi
62,099
See payment
Great Price
No Accidents
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Used
2025 GMC Sierra 3500
SLT
16K mi
64,979
See payment
No Accidents
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Used
2021 GMC Sierra 3500
SLT
27K mi
59,845
See payment
Good Price
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Credit Score
Excellent (740-900)
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Used
2021 GMC Sierra 3500
SLT
27K mi
59,845
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Good Price
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Used
2024 GMC Sierra 3500
SLT
50K mi
62,997
See payment
Great Price
No Accidents
Consider New, Similar Payment
2026 GMC Sierra 3500
Denali
3 mi
76,602
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Used
2024 GMC Sierra 3500
SLT
18K mi
67,988
See payment
Great Price
No Accidents
Newly Listed
Used
2024 GMC Sierra 3500
SLT
59K mi
62,099
See payment
Great Price
No Accidents
Newly Listed
Used
2024 GMC Sierra 3500
SLT
23K mi
68,693
See payment
Great Price
No Accidents
Used
2025 GMC Sierra 3500
SLT
34K mi
65,989
See payment
Great Price
No Accidents
Used
2022 GMC Sierra 3500
SLT
80K mi
53,970
See payment
Good Price
No Accidents
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Used
2025 GMC Sierra 3500
SLT
16K mi
64,979
See payment
No Accidents
Used
2020 GMC Sierra 3500
SLT
68K mi
53,886
See payment
Good Price
No Accidents
Used
2018 GMC Sierra 3500
SLT
130K mi
41,700
See payment
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