2026 GMC Sierra 2500 AT4X specs & colors
Crew Cab Pickup
MSRP
- 2WD Reg Cab 142" Pro
- $47,000
- 2WD Double Cab 149" Pro
- $48,900
- 2WD Double Cab 162" Pro
- $49,100
- 4WD Reg Cab 142" Pro
- $49,800
- 2WD Crew Cab 159" Pro
- $50,700
- 2WD Crew Cab 172" Pro
- $50,900
- 4WD Double Cab 149" Pro
- $51,700
- 4WD Double Cab 162" Pro
- $51,900
- 4WD Crew Cab 159" Pro
- $53,500
- 4WD Crew Cab 172" Pro
- $53,700
- 4WD Reg Cab 142" SLE
- $54,000
- 4WD Double Cab 149" SLE
- $56,100
- 4WD Double Cab 162" SLE
- $56,300
- 4WD Crew Cab 159" SLE
- $57,900
- 4WD Crew Cab 172" SLE
- $58,100
- 4WD Crew Cab 159" SLT
- $65,200
- 4WD Crew Cab 172" SLT
- $65,500
- 4WD Crew Cab 159" AT4
- $72,200
- 4WD Crew Cab 172" AT4
- $72,400
- 4WD Crew Cab 159" Denali
- $75,200
- 4WD Crew Cab 172" Denali
- $75,400
- 4WD Crew Cab 159" AT4X
- $85,200
- 4WD Crew Cab 159" Denali Ultimate
- $94,200
- 4WD Crew Cab 172" Denali Ultimate
- $94,500
$85,200
Starting MSRP
Current listing price
Current listing price
Showing the 2026 GMC Sierra 2500 4WD Crew Cab 159" AT4X
Shop NowKey specs
Color options
Interior
Obsidian Rush
Packages
$0
Starting MSRP
- includes standard equipment
Specifications
Highlights
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Gas V8
Engine Type
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-
MPG
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401 hp
470 hp Horsepower
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5
Seating Capacity
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Brakes
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N/A
Brake ABS System (Second Line)
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14 x 1.6 in
Front Brake Rotor Diam x Thickness
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Pwr
Brake Type
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14.1 x 1.3 in
Rear Brake Rotor Diam x Thickness
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Yes
Disc - Front (Yes or )
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4-Wheel
Brake ABS System
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Yes
Disc - Rear (Yes or )
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N/A
Drum - Rear (Yes or )
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Electrical
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170
Maximum Alternator Capacity (amps)
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720
Cold Cranking Amps @ 0° F (Primary)
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Engine
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Gas V8
Engine Type
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464 @ 4000
SAE Net Torque @ RPM
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401 @ 5200
SAE Net Horsepower @ RPM
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6.6L/-TBD-
Displacement
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10-Speed A/T
A/T Transmission Options
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-
MPG
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N/A
Total Cooling System Capacity
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Entertainment
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Standard
Bluetooth®
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Optional
Bluetooth®
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Measurements
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61 in
Front Hip Room
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40 in
Front Head Room
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71 in
Cargo Box Width @ Floor
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40 in
Second Head Room
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N/A
Overhang, Rear w/o bumper
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N/A
Cargo Box Width @ Top, Rear
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52 in
Cargo Box Width @ Wheelhousings
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65 in
Second Shoulder Room
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251 in
Length, Overall
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60 in
Second Hip Room
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83 in
Height, Overall
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N/A
Length, Overall w/rear bumper
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82 in
Cargo Box Length @ Floor
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N/A
Ground to Top of Load Floor
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45 in
Front Leg Room
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N/A
Overhang, Front
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N/A
Ext'd Cab Cargo Volume
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159 in
Wheelbase
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70 ft³
Cargo Volume
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43 in
Second Leg Room
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N/A
Length, Overall w/o rear bumper
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12 in
Ground Clearance, Rear
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12 in
Ground Clearance, Front
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N/A
Tailgate Width
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5
Passenger Capacity
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N/A
Cab to End of Frame
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21 in
Cargo Box (Area) Height
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82 in
Width, Max w/o mirrors
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66 in
Front Shoulder Room
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Safety
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Optional
Backup Camera
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Optional
Rear Cross Traffic Alert
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Standard
Lane Departure Warning
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Standard
Stability Control
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Standard
Navigation System
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Steering
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N/A
Steering Ratio (:1), Overall
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N/A
Turning Diameter - Wall to Wall
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Pwr Recirculating Ball
Steering Type
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52 ft
Turning Diameter - Curb to Curb
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Suspension
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3-Stage Multi-Leaf
Suspension Type - Rear
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Torsion Bar
Suspension Type - Front
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N/A
Axle Type - Front
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N/A
Axle Type - Rear
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Tires & Wheels
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18 x -TBD- in
Spare Wheel Size
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LT305/70R18
Rear Tire Size
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Aluminum
Rear Wheel Material
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18 x -TBD- in
Rear Wheel Size
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Aluminum
Front Wheel Material
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LT305/70R18
Front Tire Size
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18 x -TBD- in
Front Wheel Size
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LT305/70R18
Spare Tire Size
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N/A
Spare Wheel Material
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Weight & Capacity
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4,500 lbs
Fifth Wheel Hitch - Max Tongue Wt.
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0 lbs
Option Weight - Rear
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6,825 lbs
Curb Weight
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500 lbs
Dead Weight Hitch - Max Tongue Wt.
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N/A
Base Curb Weight
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4,200 lbs
Maximum Payload Capacity
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2,812 lbs
Curb Weight - Rear
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11,800 lbs
Gross Axle Weight Rating
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0 lbs
Option Weight - Front
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36 gal
Fuel Tank Capacity, Approx
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18,500 lbs
Maximum Trailering Capacity
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5,000 lbs
Dead Weight Hitch - Max Trailer Wt.
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4,200 lbs
As Spec'd Payload
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16,000 lbs
Wt Distributing Hitch - Max Trailer Wt.
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0 lbs
Total Option Weight
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11,025 lbs
Gross Vehicle Weight Rating
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18,000 lbs
Fifth Wheel Hitch - Max Trailer Wt.
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1,600 lbs
Wt Distributing Hitch - Max Tongue Wt.
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6,825 lbs
As Spec'd Curb Weight
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4,013 lbs
Curb Weight - Front
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N/A
Aux Fuel Tank Capacity, Approx
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26,000 lbs
Gross Combined Wt Rating
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Compare trims
Wondering which trim is right for you?
Our 2026 GMC Sierra 2500 trim comparison will help you decide.