2026 GMC Sierra 2500 AT4 specs & colors
Crew Cab Pickup
MSRP
- 2WD Reg Cab 142" Pro
- $46,700
- 2WD Double Cab 149" Pro
- $48,600
- 2WD Double Cab 162" Pro
- $48,800
- 4WD Reg Cab 142" Pro
- $49,500
- 2WD Crew Cab 159" Pro
- $50,400
- 2WD Crew Cab 172" Pro
- $50,600
- 4WD Double Cab 149" Pro
- $51,400
- 4WD Double Cab 162" Pro
- $51,600
- 4WD Crew Cab 159" Pro
- $53,200
- 4WD Crew Cab 172" Pro
- $53,400
- 4WD Reg Cab 142" SLE
- $53,500
- 4WD Double Cab 149" SLE
- $55,600
- 4WD Double Cab 162" SLE
- $55,800
- 4WD Crew Cab 159" SLE
- $57,400
- 4WD Crew Cab 172" SLE
- $57,600
- 4WD Crew Cab 159" SLT
- $64,700
- 4WD Crew Cab 172" SLT
- $65,000
- 4WD Crew Cab 159" AT4
- $71,600
- 4WD Crew Cab 172" AT4
- $71,800
- 4WD Crew Cab 159" Denali
- $75,000
- 4WD Crew Cab 172" Denali
- $75,200
- 4WD Crew Cab 159" AT4X
- $83,700
- 4WD Crew Cab 159" Denali Ultimate
- $93,800
- 4WD Crew Cab 172" Denali Ultimate
- $94,100
$71,800
Starting MSRP
Current listing price
Current listing price
Showing the 2026 GMC Sierra 2500 4WD Crew Cab 172" AT4
Shop NowKey specs
Color options
Interior
Jet Black with Kalahari accents
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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Pwr
Brake Type
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4-Wheel
Brake ABS System
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N/A
Brake ABS System (Second Line)
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Yes
Disc - Front (Yes or )
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Yes
Disc - Rear (Yes or )
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14 x 1.6 in
Front Brake Rotor Diam x Thickness
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N/A
Drum - Rear (Yes or )
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14.1 x 1.3 in
Rear Brake Rotor Diam x Thickness
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Electrical
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720
Cold Cranking Amps @ 0° F (Primary)
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170
Maximum Alternator Capacity (amps)
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Engine
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Gas V8
Engine Type
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6.6L/-TBD-
Displacement
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401 @ 5200
SAE Net Horsepower @ RPM
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464 @ 4000
SAE Net Torque @ RPM
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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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Optional
Bluetooth®
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Standard
Bluetooth®
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Measurements
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5
Passenger Capacity
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43 in
Front Head Room
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45 in
Front Leg Room
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66 in
Front Shoulder Room
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61 in
Front Hip Room
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40 in
Second Head Room
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43 in
Second Leg Room
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65 in
Second Shoulder Room
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60 in
Second Hip Room
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172 in
Wheelbase
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N/A
Length, Overall w/o rear bumper
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N/A
Length, Overall w/rear bumper
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267 in
Length, Overall
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82 in
Width, Max w/o mirrors
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80 in
Height, Overall
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N/A
Overhang, Front
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N/A
Overhang, Rear w/o bumper
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N/A
Cab to End of Frame
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N/A
Ground to Top of Load Floor
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10 in
Ground Clearance, Front
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10 in
Ground Clearance, Rear
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98 in
Cargo Box Length @ Floor
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N/A
Cargo Box Width @ Top, Rear
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71 in
Cargo Box Width @ Floor
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51 in
Cargo Box Width @ Wheelhousings
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21 in
Cargo Box (Area) Height
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N/A
Tailgate Width
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84 ft³
Cargo Volume
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N/A
Ext'd Cab Cargo Volume
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Safety
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Standard
Stability Control
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Optional
Backup Camera
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Standard
Lane Departure Warning
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Optional
Rear Cross Traffic Alert
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Standard
Navigation System
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Steering
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Pwr Recirculating Ball
Steering Type
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N/A
Steering Ratio (:1), Overall
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57 ft
Turning Diameter - Curb to Curb
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N/A
Turning Diameter - Wall to Wall
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Suspension
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Short/Long Arm
Suspension Type - Front
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Multi-Leaf Springs
Suspension Type - Rear
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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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LT275/65R20
Front Tire Size
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LT275/65R20
Rear Tire Size
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LT275/70R18
Spare Tire Size
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20 x -TBD- in
Front Wheel Size
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20 x -TBD- in
Rear Wheel Size
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N/A
Spare Wheel Size
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Aluminum
Front Wheel Material
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Aluminum
Rear Wheel Material
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Steel
Spare Wheel Material
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Weight & Capacity
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N/A
Gross Axle Weight Rating
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6,936 lbs
Curb Weight
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0 lbs
Total Option Weight
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11,050 lbs
Gross Vehicle Weight Rating
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500 lbs
Dead Weight Hitch - Max Tongue Wt.
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4,114 lbs
As Spec'd Payload
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6,936 lbs
As Spec'd Curb Weight
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0 lbs
Option Weight - Rear
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0 lbs
Option Weight - Front
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2,847 lbs
Curb Weight - Rear
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4,089 lbs
Curb Weight - Front
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N/A
Base Curb Weight
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5,000 lbs
Dead Weight Hitch - Max Trailer Wt.
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26,000 lbs
Gross Combined Wt Rating
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4,114 lbs
Maximum Payload Capacity
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16,000 lbs
Wt Distributing Hitch - Max Trailer Wt.
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1,600 lbs
Wt Distributing Hitch - Max Tongue Wt.
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17,900 lbs
Fifth Wheel Hitch - Max Trailer Wt.
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4,475 lbs
Fifth Wheel Hitch - Max Tongue Wt.
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20,000 lbs
Maximum Trailering Capacity
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36 gal
Fuel Tank Capacity, Approx
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N/A
Aux Fuel Tank Capacity, Approx
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Compare trims
Wondering which trim is right for you?
Our 2026 GMC Sierra 2500 trim comparison will help you decide.