2021 GMC Sierra 2500HD SLT
Specifications, live market data, colors, and factory features.
27 for sale right now
$35,999 – $73,490
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
- 79.7″
- Wheelbase
- 172″
- Curb Weight
- 6,950 lbs
Body & Practicality
- Body Style
- Truck
- Doors
- 4
- Seating
- 6
- Base MSRP
- $55,800
Colors
Factory colors on 2021 GMC Sierra 2500HD SLTs for sale now.
Exterior
- Summit White(white)3
- Cayenne Red Tintcoat(red)2
- White2
- Quicksilver Metallic(silver)1
- Pacific Blue Metallic(blue)1
- Cardinal Red(red)1
- White Frost Tri-Coat(white)1
Interior
- Jet Black(black)7
- Black3
- Dark Walnut(brown)1
Live Market Data
Computed from active 2021 GMC Sierra 2500HD SLT listings nationwide, updated continuously.
Price Distribution
Price vs. Mileage
Latest SLT Listings
The newest 2021 GMC Sierra 2500HD SLTs on the market.
Used 2021 GMC Sierra 2500HD
$36,989
Est. $540/mo*
Car Venture Inc.
Used 2021 GMC Sierra 2500HD
$35,999
Est. $526/mo*
Oscars Truck Center LLC
Used 2021 GMC Sierra 2500HD
$53,748
Est. $779/mo*
Motor City Buick GMC
Used 2021 GMC Sierra 2500HD
$55,910
Est. $810/mo*
Daniels Chevrolet GMC
Used 2021 GMC Sierra 2500HD
$41,599
Est. $606/mo*
Richard Kay Superstore
Used 2021 GMC Sierra 2500HD
$73,490
Est. $1,061/mo*
Lifted Trucks Scottsdale
Used 2021 GMC Sierra 2500HD
$54,338
Est. $788/mo*
Gordon Chevrolet
Used 2021 GMC Sierra 2500HD
$40,665
Est. $593/mo*
Findlay Chrysler
What's Yours
Worth?
The median 2021 GMC Sierra 2500HD SLT lists for $44,792 today.
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GMC Sierra 2500HD SLT
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