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2026 GMC Sierra 2500 AT4X specs & colors

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
2026 GMC Sierra 2500 AT4X

Showing the 2026 GMC Sierra 2500 4WD Crew Cab 159" AT4X

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Key specs

Color options

Interior
Obsidian Rush

Packages

  • $0

    Starting MSRP

    • includes standard equipment

Specifications

Highlights

Gas V8
Engine Type
-
MPG
401 hp
470 hp
Horsepower
5
Seating Capacity

Brakes

Pwr
Brake Type
Yes
Disc - Rear (Yes or )
Yes
Disc - Front (Yes or )
4-Wheel
Brake ABS System
14.1 x 1.3 in
Rear Brake Rotor Diam x Thickness
14 x 1.6 in
Front Brake Rotor Diam x Thickness
N/A
Brake ABS System (Second Line)
N/A
Drum - Rear (Yes or )

Electrical

170
Maximum Alternator Capacity (amps)
720
Cold Cranking Amps @ 0° F (Primary)

Engine

Gas V8
Engine Type
464 @ 4000
SAE Net Torque @ RPM
6.6L/-TBD-
Displacement
401 @ 5200
SAE Net Horsepower @ RPM
10-Speed A/T
A/T
Transmission Options
-
MPG
N/A
Total Cooling System Capacity

Entertainment

Optional
Bluetooth®
Standard
Bluetooth®

Measurements

60 in
Second Hip Room
83 in
Height, Overall
21 in
Cargo Box (Area) Height
159 in
Wheelbase
N/A
Cargo Box Width @ Top, Rear
N/A
Overhang, Rear w/o bumper
45 in
Front Leg Room
12 in
Ground Clearance, Front
70 ft³
Cargo Volume
43 in
Second Leg Room
251 in
Length, Overall
52 in
Cargo Box Width @ Wheelhousings
66 in
Front Shoulder Room
40 in
Front Head Room
40 in
Second Head Room
N/A
Overhang, Front
65 in
Second Shoulder Room
12 in
Ground Clearance, Rear
N/A
Length, Overall w/rear bumper
N/A
Ground to Top of Load Floor
82 in
Width, Max w/o mirrors
82 in
Cargo Box Length @ Floor
71 in
Cargo Box Width @ Floor
N/A
Tailgate Width
N/A
Cab to End of Frame
N/A
Length, Overall w/o rear bumper
5
Passenger Capacity
N/A
Ext'd Cab Cargo Volume
61 in
Front Hip Room

Safety

Standard
Navigation System
Standard
Stability Control
Optional
Rear Cross Traffic Alert
Optional
Backup Camera
Standard
Lane Departure Warning

Steering

Pwr Recirculating Ball
Steering Type
52 ft
Turning Diameter - Curb to Curb
N/A
Steering Ratio (:1), Overall
N/A
Turning Diameter - Wall to Wall

Suspension

N/A
Axle Type - Rear
N/A
Axle Type - Front
Torsion Bar
Suspension Type - Front
3-Stage Multi-Leaf
Suspension Type - Rear

Tires & Wheels

Aluminum
Front Wheel Material
N/A
Spare Wheel Material
18 x -TBD- in
Front Wheel Size
18 x -TBD- in
Spare Wheel Size
LT305/70R18
Front Tire Size
LT305/70R18
Rear Tire Size
18 x -TBD- in
Rear Wheel Size
Aluminum
Rear Wheel Material
LT305/70R18
Spare Tire Size

Weight & Capacity

4,500 lbs
Fifth Wheel Hitch - Max Tongue Wt.
26,000 lbs
Gross Combined Wt Rating
18,500 lbs
Maximum Trailering Capacity
4,013 lbs
Curb Weight - Front
6,825 lbs
Curb Weight
11,800 lbs
Gross Axle Weight Rating
500 lbs
Dead Weight Hitch - Max Tongue Wt.
4,200 lbs
Maximum Payload Capacity
6,825 lbs
As Spec'd Curb Weight
18,000 lbs
Fifth Wheel Hitch - Max Trailer Wt.
0 lbs
Total Option Weight
4,200 lbs
As Spec'd Payload
0 lbs
Option Weight - Front
N/A
Aux Fuel Tank Capacity, Approx
N/A
Base Curb Weight
11,025 lbs
Gross Vehicle Weight Rating
5,000 lbs
Dead Weight Hitch - Max Trailer Wt.
36 gal
Fuel Tank Capacity, Approx
1,600 lbs
Wt Distributing Hitch - Max Tongue Wt.
16,000 lbs
Wt Distributing Hitch - Max Trailer Wt.
0 lbs
Option Weight - Rear
2,812 lbs
Curb Weight - Rear

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2026 GMC Sierra 2500 AT4X

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