2021 GMC Sierra 3500HD SLT
Specifications, live market data, colors, and factory features.
12 for sale right now
$40,911 – $62,588
Specifications
Performance
- Engine
- 6.6L V-Shaped L5P - DI, DURAMAX, GEN 5 VAR. 1
- Horsepower
- 401 hp
- Torque
- 464 lb-ft
- Transmission
- 6-Speed Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Diesel
- Fuel Tank
- 36 gal
Dimensions
- Length
- 266.1″
- Width
- 81.9″
- Height
- 80.9″
- Wheelbase
- 172″
- Curb Weight
- 7,064 lbs
Body & Practicality
- Body Style
- Truck
- Doors
- 4
- Seating
- 6
- Base MSRP
- $57,000
Colors
Factory colors on 2021 GMC Sierra 3500HD SLTs for sale now.
Exterior
- White2
- Summit White(white)2
- Brownstone Metallic(brown)1
- Ebony Twilight Metallic(black)1
Interior
- Jet Black(black)4
- Dark Walnut(gray)1
- Dark Walnut/Slate(gray)1
Live Market Data
Computed from active 2021 GMC Sierra 3500HD SLT listings nationwide, updated continuously.
Price Distribution
Price vs. Mileage
Latest SLT Listings
The newest 2021 GMC Sierra 3500HD SLTs on the market.
Used 2021 GMC Sierra 3500HD
$51,288
Est. $744/mo*
Rick McGill's Airport Toyota
Used 2021 GMC Sierra 3500HD
$59,299
Est. $858/mo*
That Car Place
Used 2021 GMC Sierra 3500HD
$50,265
Est. $730/mo*
Renn Kirby Chevrolet
Used 2021 GMC Sierra 3500HD
$53,987
Est. $783/mo*
Maxx Autos Plus
Used 2021 GMC Sierra 3500HD
$43,995
Est. $640/mo*
BMW of Murray
Used 2021 GMC Sierra 3500HD
$50,244
Est. $729/mo*
Mark's Discount Truck and Auto Sales
Used 2021 GMC Sierra 3500HD
$61,500
Est. $890/mo*
Acura of Modesto
Used 2021 GMC Sierra 3500HD
$40,911
Est. $596/mo*
Chevrolet of Culver City
What's Yours
Worth?
The median 2021 GMC Sierra 3500HD SLT lists for $52,093 today.
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GMC Sierra 3500HD SLT
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