2026 GMC Sierra 3500 SLT
Specifications, live market data, colors, and factory features.
266 for sale right now
$65,000 – $90,830
Specifications
Performance
- Engine
- 6.6L 8-Cylinder L8T
- Transmission
- Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Gasoline
- MPG City
- 0 mpg
- MPG Highway
- 0 mpg
Body & Practicality
- Body Style
- Truck
- Doors
- 4
Colors
Factory colors on 2026 GMC Sierra 3500 SLTs for sale now.
Exterior
- Summit White(white)42
- Onyx Black(black)25
- Sterling Metallic(silver)21
- Glacier White Tricoat(white)14
- Volcanic Red Tintcoat(red)13
- Sterling(silver)10
- Titanium Rush Metallic(silver)9
- Glacier White(white)9
- Volcanic Red(red)5
- Black2
Interior
- Jet Black(black)77
- Dark Walnut/Slate(gray)25
- Black22
- Dark Walnut(brown)12
- Jet Black, Perforated Leather-Appointed Front Seat(blue)5
- Dark Walnut/Slate, Perforated Leather-appointed fr(gray)3
- Dark Walnut/Slate, Perforated Leather-Appointed Fr(gray)2
- Hve Dark Walnut(gray)2
- Jet Blk Perforated Lth-Ap(black)1
- Jet Black, Perforated Leather-appointed front seat(brown)1
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
$83,165
Est. $1,199/mo*
Mccarthy Auto World
New 2026 GMC Sierra 3500
$78,165
Est. $1,127/mo*
New 2026 GMC Sierra 3500
$81,360
Est. $1,173/mo*
Bergey's Buick GMC
New 2026 GMC Sierra 3500
$85,256
Est. $1,228/mo*
Fabre Chevrolet GMC
New 2026 GMC Sierra 3500
$79,519
Est. $1,147/mo*
Walser Buick GMC Bloomington
New 2026 GMC Sierra 3500
$75,155
Est. $1,084/mo*
Larry Spacc GMC
New 2026 GMC Sierra 3500
$78,999
Est. $1,139/mo*
Laura Buick GMC
New 2026 GMC Sierra 3500
$76,590
Est. $1,105/mo*
What's Yours
Worth?
The median 2026 GMC Sierra 3500 SLT lists for $78,450 today.
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GMC Sierra 3500 SLT
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