Used GMC Sierra 3500HD SLT for Sale nearLongmont, CO
38 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Summit White
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 400
- Stock #:
- U16929
- VIN:
- 1GT4UUEY7TF196015
Sponsored Listing
2026 GMC Sierra 3500HD
SLT Crew Cab 4WD
400 mi
Henderson, CO
23 mi away
Fair Deal
$71,868
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Silver
- Fuel type:
- Biodiesel
- Transmission:
- Automatic
- Mileage:
- 126,906
- Stock #:
- 13995
- VIN:
- 1GT49UEY0LF240213
New arrival
2020 GMC Sierra 3500HD
SLT Crew Cab 4WD
126,906 mi
Home delivery from Caldwell, ID
Price includes $775 shipping
Good Deal
$40,974
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- White
- Fuel type:
- Biodiesel
- Interior color:
- Dark Ash/Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 68,909
- Stock #:
- MX5038
- VIN:
- 1GT52XCY9JZ119382
2018 GMC Sierra 3500HD
SLT Double Cab 4WD
68,909 mi
Home delivery from Louisville, TN
Price includes $2,128 shipping
Fair Deal
$47,476
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- White
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 125,651
- Stock #:
- 2013
- VIN:
- 1GT42XEY6JF112013
2018 GMC Sierra 3500HD
SLT Crew Cab 4WD
125,651 mi
Home delivery from Canby, OR
Price includes $955 shipping
Great Deal
$35,855
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- 10-Speed Automatic
- Mileage:
- 58,966
- Stock #:
- K89317
- VIN:
- 1GT49UEY0PF150713
2023 GMC Sierra 3500HD
SLT Crew Cab 4WD
58,966 mi
Home delivery from Herculaneum, MO
Price includes $1,596 shipping
Fair Deal
$55,875
- Year:
- 2008
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 365 hp 6.6L V8 Diesel
- Exterior color:
- Silver
- Fuel type:
- Diesel
- Interior color:
- Black (Ebony)
- Transmission:
- 6-Speed Automatic
- Mileage:
- 72,223
- Stock #:
- 5277
- VIN:
- 1GTJK33618F161580
New arrival
2008 GMC Sierra 3500HD
SLT Crew Cab DRW 4WD
72,223 mi
Home delivery from Shepherdsville, KY
Price includes $1,057 shipping
Good Deal
$29,406
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Black
- Interior color:
- Gray
- Transmission:
- Automatic
- Mileage:
- 31,873
- Stock #:
- 28608483
- VIN:
- 1GT49UEY4PF144395
2023 GMC Sierra 3500HD
SLT Crew Cab 4WD
31,873 mi
Store transfer to Loveland, CO
Price includes $899 shipping
Fair Deal
$62,897
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- White
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 56,372
- Stock #:
- L358928
- VIN:
- 1GT49UEY5RF358928
Price drop
-$2,499
2024 GMC Sierra 3500HD
SLT Crew Cab 4WD
56,372 mi
Home delivery from Logan, UT
Price includes $549 shipping
Good Deal
$61,047
$58,548
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Red
- Fuel type:
- Biodiesel
- Interior color:
- Dark Ash/Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 129,619
- Stock #:
- A23159
- VIN:
- 1GT42XEY2JF120173
New arrival
2018 GMC Sierra 3500HD
SLT Crew Cab 4WD
129,619 mi
Home delivery from West Jordan, UT
Price includes $732 shipping
Fair Deal
$40,226
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 65,677
- Stock #:
- IF240981
- VIN:
- 1GT49UEY0RF240981
2024 GMC Sierra 3500HD
SLT Crew Cab 4WD
65,677 mi
Home delivery from Idaho Falls, ID
Price includes $628 shipping
Fair Deal
$59,128
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 112,984
- Stock #:
- YB34788
- VIN:
- 1GT49UEY1NF135876
Price drop
-$999
2022 GMC Sierra 3500HD
SLT Crew Cab 4WD
112,984 mi
Home delivery from Fond du Lac, WI
Price includes $1,602 shipping
Fair Deal
$47,031
$46,032
- Year:
- 2016
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 397 hp 6.6L V8 Diesel
- Exterior color:
- Cardinal Red
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 179,501
- Stock #:
- P2377
- VIN:
- 1GT52XE80GZ395519
2016 GMC Sierra 3500HD
SLT Double Cab 4WD
179,501 mi
Home delivery from Audubon, IA
Price includes $759 shipping
Fair Deal
$30,417
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Silver
- Fuel type:
- Biodiesel
- Interior color:
- Gray
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 115,804
- Stock #:
- 13313
- VIN:
- 1GT42VCY1KF269912
2019 GMC Sierra 3500HD
SLT Crew Cab 4WD
115,804 mi
Home delivery from Cleburne, TX
Price includes $1,035 shipping
Fair Deal
$42,145
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- [GA0] Pacific Blue Metallic
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 101,659
- Stock #:
- 26519
- VIN:
- 1GT49UEY7LF139606
![[GA0] Pacific Blue Metallic 2020 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic](https://static.cargurus.com/images/forsale/2026/10/19/15/21/2020_gmc_sierra_3500hd-pic-1300576801144879387-1024x768.jpeg?io=true&width=640&height=480&fit=bounds&format=jpg&auto=webp)
New arrival
2020 GMC Sierra 3500HD
SLT Crew Cab 4WD
101,659 mi
Home delivery from Searcy, AR
Free home delivery
Fair Deal
$46,000
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- White
- Fuel type:
- Biodiesel
- Interior color:
- No Color
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 95,723
- Stock #:
- 12332
- VIN:
- 1GT42XEY6JF210877
2018 GMC Sierra 3500HD
SLT Crew Cab 4WD
95,723 mi
Home delivery from Sacramento, CA
Price includes $880 shipping
Fair Deal
$47,879
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 133,488
- Stock #:
- D9929A
- VIN:
- 1GT49UEY2MF169310
2021 GMC Sierra 3500HD
SLT Crew Cab 4WD
133,488 mi
Home delivery from Murray, UT
Price includes $537 shipping
Good Deal
$41,031
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Summit White
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 400
- Stock #:
- U16929
- VIN:
- 1GT4UUEY7TF196015
2026 GMC Sierra 3500HD
SLT Crew Cab 4WD
400 mi
Henderson, CO
23 mi away
Fair Deal
$71,868
- Year:
- 2008
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 365 hp 6.6L V8 Diesel
- Exterior color:
- White
- Fuel type:
- Diesel
- Transmission:
- Automatic
- Mileage:
- 68,722
- Stock #:
- 13800
- VIN:
- 1GTJK33698F136894
2008 GMC Sierra 3500HD
SLT Crew Cab DRW 4WD
68,722 mi
Home delivery from Everett, WA
Price includes $1,503 shipping
Good Deal
$30,048
- Year:
- 2009
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 365 hp 6.6L V8 Diesel
- Exterior color:
- White
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 82,893
- Stock #:
- DN120091
- VIN:
- 1GTJK93669F120091
2009 GMC Sierra 3500HD
SLT Crew Cab DRW 4WD
82,893 mi
Home delivery from Houston, TX
Price includes $816 shipping
Fair Deal
$37,211
- Year:
- 2009
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 365 hp 6.6L V8 Diesel
- Exterior color:
- Off White
- Fuel type:
- Diesel
- Interior color:
- Brown (Tan)
- Transmission:
- 6-Speed Automatic
- Mileage:
- 118,998
- Stock #:
- CM KC ARB 20-26 2167
- VIN:
- 1GTJK93679F132167
2009 GMC Sierra 3500HD
SLT Crew Cab DRW 4WD
118,998 mi
Home delivery from Springfield, NE
Price includes $710 shipping
Fair Deal
$29,820
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 40,783
- Stock #:
- TKE83382J
- VIN:
- 1GT4UUEYXSF130699
New arrival
2025 GMC Sierra 3500HD
SLT Crew Cab 4WD
40,783 mi
Home delivery from Pueblo, CO
Price includes $183 shipping
Great Deal
$61,868
- Year:
- 2015
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 397 hp 6.6L V8 Diesel
- Exterior color:
- Silver
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 197,605
- Stock #:
- 575184
- VIN:
- 1GT423E82FF575184
New arrival
2015 GMC Sierra 3500HD
SLT Crew Cab 4WD
197,605 mi
Home delivery from Blaine, WA
Price includes $1,054 shipping
Fair Deal
$24,844
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 68,597
- Stock #:
- 7252
- VIN:
- 1GT49UEY9PF194967
2023 GMC Sierra 3500HD
SLT Crew Cab 4WD
68,597 mi
Home delivery from Orem, UT
Price includes $626 shipping
No Rating
$64,020
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Carbon Black Metallic
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 73,462
- Stock #:
- T33426A
- VIN:
- 1GT49UEY2LF170729
New arrival
2020 GMC Sierra 3500HD
SLT Crew Cab 4WD
73,462 mi
Home delivery from Glendale, AZ
Price includes $1,101 shipping
No Rating
$59,991
FAQs
How many GMC Sierra 3500HD SLT vehicles in Longmont, CO have no reported accidents or damage?
40 out of 44 for sale near Longmont, CO have no reported accidents or damage.
What fuel types are available?
Diesel, Biodiesel, Gasoline engines are available.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
Relevant articles
George Kennedy
The Best Dually Trucks of 2026
Trucks have gone quite lux lately, and are more often used to get around town than to get work done. The most capable of these trucks are nicknamed “duallies”, which those equipped with dual rear wheels.
Mark Takahashi
GMC Sierra 3500HD Buying Guide: Cost, Reliability, and the Best Years to Buy
Discover the ultimate buying guide for purchasing a used GMC Sierra 3500HD covering each generation since 1988. Whether you're a first-time buyer or a GMC enthusiast, this comprehensive overview will help you research your next pre-owned GMC Sierra 3500HD.
Chris Teague
2025 GMC Sierra 3500HD Pricing, Specs, and Release Date
Like its slightly less beefy 2500HD sibling, the 2025 GMC Sierra 3500HD offers added features for the new model year, including a standard trailer brake controller.
GMC Sierra 3500HD in Longmont COOBS 1990s-era Chevy and Ford Trucks for Sale in Longmont COUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Longmont COReliable Cars for Sale in Longmont COOne Ton Trucks for Sale in Longmont COGM Certified Preowned Vehicles for Sale Near Longmont COReliable Cheap Cars For Sale in Longmont CO
All Used CarsManual Transmission CarsLuxury CarsCars with Red InteriorCheap Manual CarsHybrid CarsSports CarsElectric SUVsCheap TrucksSmall CarsThird Row SUVsThree Quarter Ton TrucksLifted TrucksManual Transmission TrucksDiesel TrucksHybrid SUVsDually TrucksOne Ton TrucksCheap SUVsLifted Ford Trucks4x4 TrucksWork TrucksAWD SUVsFord TrucksChevrolet TrucksToyota TrucksTrucks Under $10,000Cars Under $15,000Sports Cars Under $20,000Trucks Under $20,000Used Sedans for Sale with Low Mileage in LongmontUsed SUVs / Crossovers for Sale with Low Mileage in LongmontUsed Hatchbacks for Sale with Low Mileage in LongmontUsed Convertibles for Sale with Low Mileage in LongmontUsed Vans for Sale with Low Mileage in LongmontUsed Minivans for Sale with Low Mileage in LongmontUsed Pickup Trucks for Sale with Low Mileage in LongmontUsed Coupes for Sale with Low Mileage in LongmontUsed Wagons for Sale with Low Mileage in Longmont
