2026 GMC Sierra 3500 SLT
Specifications, live market data, colors, and factory features.
313 for sale right now
$64,630 – $91,227
Specifications
Performance
- Engine
- 6.6L V8 L5P
- Horsepower
- 401 hp
- Torque
- 464 lb-ft
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Diesel
- Fuel Tank
- 36 gal
Dimensions
- Length
- 266.8″
- Width
- 81.9″
- Height
- 80.7″
- Wheelbase
- 172″
- Curb Weight
- 7,244 lbs
Body & Practicality
- Body Style
- Truck
- Doors
- 4
- Seating
- 6
- Base MSRP
- $66,100
Colors
Factory colors on 2026 GMC Sierra 3500 SLTs for sale now.
Exterior
- Summit White(white)64
- Onyx Black(black)39
- Sterling Metallic(silver)23
- Volcanic Red Tintcoat(red)18
- Glacier White Tricoat(white)12
- Sterling(silver)9
- Titanium Rush Metallic(gray)8
- Glacier White(white)6
- Volcanic Red(red)5
- White4
Interior
- Jet Black(black)88
- Black(brown)37
- Dark Walnut/Slate(gray)27
- Dark Walnut(brown)10
- Jet Black, Perforated Leather-Appointed Front Seat(blue)6
- Dark Walnut/Slate, Perforated Leather-appointed fr(gray)4
- Jet Black, Perforated Leather-appointed front seat(brown)2
- H1y Jet Black(black)2
- Jet Black Perforated Leather Appointed Front Seat(black)2
- Hve Dark Walnut(brown)2
Live Market Data
Computed from active 2026 GMC Sierra 3500 SLT listings nationwide, updated continuously.
Price Distribution
Price vs. Mileage
Latest SLT Listings
The newest 2026 GMC Sierra 3500 SLTs on the market.
New 2026 GMC Sierra 3500
$84,794
Est. $1,222/mo*
Napleton Chevrolet Buick GMC Beaver Dam
New 2026 GMC Sierra 3500
$80,691
Est. $1,163/mo*
Huston GMC
New 2026 GMC Sierra 3500
$82,375
Est. $1,187/mo*
Carl Hogan Chevrolet GMC
New 2026 GMC Sierra 3500
$74,948
Est. $1,081/mo*
Northtown Automotive
New 2026 GMC Sierra 3500
$82,319
Est. $1,187/mo*
Elk Grove Buick GMC
New 2026 GMC Sierra 3500
$82,865
Est. $1,194/mo*
Mccarthy Auto World
New 2026 GMC Sierra 3500
$82,169
Est. $1,184/mo*
Elk Grove Buick GMC
New 2026 GMC Sierra 3500
$85,904
Est. $1,238/mo*
Lithia Chevrolet GMC of Helena
What's Yours
Worth?
The median 2026 GMC Sierra 3500 SLT lists for $78,499 today.
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GMC Sierra 3500 SLT
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