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Used Cars for Sale
GMC
Sierra 3500
SLT
Used GMC Sierra 3500 SLT for Sale in Denver, CO
80203
Filters (4)
Items 1 to 2 of 5.
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Make, Model & Trim
GMC
Models
Sierra 3500
Acadia
(92)
Caballero
Canyon
(50)
Envoy
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G1500
G2500
G3500
Hummer EV
(6)
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(1)
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(4)
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(12)
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(10)
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(1)
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(385)
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(141)
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(69)
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Suburban
(1)
Syclone
Terrain
(104)
TopKick C4500
TopKick C5500
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(127)
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(83)
Sierra 3500 Trims
SLT
AT4
(12)
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(29)
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(5)
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(3)
SL
SLE
(9)
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(6)
W/T
(1)
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(1)
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(1)
Gooseneck/5th Wheel Prep Package
(1)
X31 Off-Road and Protection Package
(1)
Texas SLT Premium Package
Driver Alert Package II
(1)
EZ-Lift Tailgate Package
(1)
Sierra HD Pro Safety Plus Package
LPO, Cargo Convenience Package
LPO, GMC Interior Protection Package
Heavy Duty Front Spring/Camper Package
(2)
X31 Off-Road Package
(1)
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Black Badging Package
SLT Premium Package
(2)
Duramax Plus Package
(1)
Skid Plate Package, Frame-Mounted Shields
(1)
Suspension Package, Off-Road
(1)
Texas Edition SLT Premium Plus Package
Heavy-Duty Power Package
Driver Alert Package I
Driver Alert Package
(2)
LPO, Protection Package
Gooseneck/5TH Wheel Prep Package -- Hitch Platform to Accept Gooseneck or Fifth Wheel Hitch.
(2)
LPO, Hitch Package, Gooseneck Ball and Chain Tiedown Kit With Case
(1)
Z71 Off-Road Package
LPO, On The Job Package
Snow Plow Prep/Camper Package
Gooseneck/5TH Wheel Package
(1)
Gooseneck/5TH Wheel Prep Package
(1)
LPO, Assist Step and Floor Liner Package
All-Terrain HD Package, For Crew Cab Models Only
Technology Package
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
(92)
Caballero
Canyon
(50)
Envoy
Envoy XL
Envoy XUV
G1500
G2500
G3500
Hummer EV
(6)
Jimmy
(1)
Other GMC Models
S15 Jimmy
S15 Pickup
Safari
Savana 1500
(4)
Savana 2500
(12)
Savana 3500
(10)
Savana 4500
(1)
Sierra 1500
(385)
Sierra 2500
(141)
Sierra 3500
(69)
Sierra EV
Sonoma
Suburban
(1)
Syclone
Terrain
(104)
TopKick C4500
TopKick C5500
Typhoon
Yukon
(127)
Yukon XL
(83)
Sierra 3500 Trims
SLT
AT4
(12)
Classic SL
Classic SLE
Classic W/T
Denali
(29)
Denali Ultimate
(5)
Pro
(3)
SL
SLE
(9)
SLT
(6)
W/T
(1)
SLT Package
Any
Onstar Plus Package
SLT Preferred Package
LPO, Hitch Package
(1)
SLT Premium Plus Package
Sun And Navigation Package
SLT Convenience Package
License Plate Front Mounting Package
Snow Plow Prep Package
Entertainment Package, Rear Seat DVD Player
Convenience Package
(1)
Gooseneck/5th Wheel Prep Package
(1)
X31 Off-Road and Protection Package
(1)
Texas SLT Premium Package
Driver Alert Package II
(1)
EZ-Lift Tailgate Package
(1)
Sierra HD Pro Safety Plus Package
LPO, Cargo Convenience Package
LPO, GMC Interior Protection Package
Heavy Duty Front Spring/Camper Package
(2)
X31 Off-Road Package
(1)
Entertainment Package, Rear Seat DVD/Blu-Ray Player
LPO, Black Badging Package
SLT Premium Package
(2)
Duramax Plus Package
(1)
Skid Plate Package, Frame-Mounted Shields
(1)
Suspension Package, Off-Road
(1)
Texas Edition SLT Premium Plus Package
Heavy-Duty Power Package
Driver Alert Package I
Driver Alert Package
(2)
LPO, Protection Package
Gooseneck/5TH Wheel Prep Package -- Hitch Platform to Accept Gooseneck or Fifth Wheel Hitch.
(2)
LPO, Hitch Package, Gooseneck Ball and Chain Tiedown Kit With Case
(1)
Z71 Off-Road Package
LPO, On The Job Package
Snow Plow Prep/Camper Package
Gooseneck/5TH Wheel Package
(1)
Gooseneck/5TH Wheel Prep Package
(1)
LPO, Assist Step and Floor Liner Package
All-Terrain HD Package, For Crew Cab Models Only
Technology Package
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
(1)
Used
(6)
Manufacturer Certified
(1)
Third-Party Certified
(0)
Certified Program
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New
(1)
Used
(6)
Manufacturer Certified
(1)
Third-Party Certified
(0)
Certified Program
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Truck Cab Size
Crew Cab
(5)
Extended Cab
(0)
Regular Cab
(0)
Crew Cab
(5)
Extended Cab
(0)
Regular Cab
(0)
Truck Bed Length
Short
(0)
Medium
(3)
Long
(3)
Include unspecified lengths
(0)
Short
(0)
Medium
(3)
Long
(3)
Include unspecified lengths
(0)
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Purchase Options
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Certified 2023 GMC Sierra 3500 SLT w/ SLT Premium Package
55,973
See estimated payment
Good Price
Dealer Fees Included
Similar Match
261
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CarBravo Certified
2023 GMC Sierra 3500
SLT
68K mi
55,973
See payment
Good Price
Dealer Fees Included
No Accidents
Used
2025 GMC Sierra 3500
SLT
34K mi
64,593
See payment
Good Price
Dealer Fees Included
No Accidents
Used
2007 GMC Sierra 3500
SLT
227K mi
16,500
See payment
No Accidents
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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)
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Down Payment
Trade-In Value
$0
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Based on 4.5% APR for mos.
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Search Available Cars
Used
2026 GMC Sierra 3500
SLT
400 mi
76,593
See payment
Dealer Fees Included
No Accidents
Used
2025 GMC Sierra 3500
SLT
34K mi
64,593
See payment
Good Price
Dealer Fees Included
No Accidents
Consider Buying New
2026 GMC Sierra 3500
Denali Ultimate
3 mi
103,677
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Newly Listed
Used
2019 GMC Sierra 3500
SLT
102K mi
43,204
See payment
Dealer Fees Included
CarBravo Certified
2023 GMC Sierra 3500
SLT
68K mi
55,973
See payment
Good Price
Dealer Fees Included
No Accidents
Newly Listed
Used
2018 GMC Sierra 3500
SLT
82K mi
46,999
See payment
No Accidents
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