2026 GMC Sierra 3500 AT4
Specifications, live market data, colors, and factory features.
395 for sale right now
$66,998 – $101,990
Specifications
Performance
- Engine
- 6.6L V8 L5P
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Diesel
- Fuel Tank
- 36 gal
Dimensions
- Length
- 266.8″
- Width
- 81.9″
- Height
- 80.8″
- Wheelbase
- 172″
- Curb Weight
- 7,529 lbs
Body & Practicality
- Body Style
- Truck
- Doors
- 4
- Seating
- 5
- Base MSRP
- $73,000
Colors
Factory colors on 2026 GMC Sierra 3500 AT4s for sale now.
Exterior
- Summit White(white)56
- Onyx Black(black)45
- Sterling Metallic(silver)24
- Coastal Dune(brown)18
- Gray11
- Volcanic Red Tintcoat(red)10
- Volcanic Red(red)9
- Sterling(silver)8
- White7
- Black7
Interior
- Jet Black w/Kalahari Accents(black)108
- Jet Black(black)87
- Jet Black With Kalahari Accents(black)12
- Jet Black with Kalahari accents(black)8
- Jet Black with Kalahari accents, Perforated Front Leather seatin(black)4
- Black2
- Jet Black With Kalahari Accents, Perforated Front Leather Seatin(black)1
Live Market Data
Computed from active 2026 GMC Sierra 3500 AT4 listings nationwide, updated continuously.
Price Distribution
Price vs. Mileage
Latest AT4 Listings
The newest 2026 GMC Sierra 3500 AT4s on the market.
New 2026 GMC Sierra 3500
$87,872
Est. $1,266/mo*
Lindsay Buick GMC
New 2026 GMC Sierra 3500
$91,085
Est. $1,311/mo*
Larry Spacc GMC
New 2026 GMC Sierra 3500
$92,115
Est. $1,326/mo*
Sandy Sansing Chevrolet
New 2026 GMC Sierra 3500
$93,250
Est. $1,342/mo*
Sandy Sansing Chevrolet
New 2026 GMC Sierra 3500
$92,115
Est. $1,326/mo*
Sandy Sansing Chevrolet
New 2026 GMC Sierra 3500
$93,115
Est. $1,340/mo*
Sandy Sansing Chevrolet
New 2026 GMC Sierra 3500
$84,809
Est. $1,222/mo*
Diamond Buick GMC of Alexandria
New 2026 GMC Sierra 3500
$91,190
Est. $1,313/mo*
GMC of Vacaville
What's Yours
Worth?
The median 2026 GMC Sierra 3500 AT4 lists for $86,360 today.
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GMC Sierra 3500 AT4
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