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2026 GMC Sierra 2500 AT4 specs & colors

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
2026 GMC Sierra 2500 AT4

Showing the 2026 GMC Sierra 2500 4WD Crew Cab 172" AT4

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Key specs

Color options

Interior
Jet Black with Kalahari accents

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

Electrical

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

Engine

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

Entertainment

Optional
Bluetooth®
Standard
Bluetooth®

Measurements

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

Safety

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

Steering

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

Suspension

N/A
Axle Type - Rear
N/A
Axle Type - Front
Multi-Leaf Springs
Suspension Type - Rear
Short/Long Arm
Suspension Type - Front

Tires & Wheels

Aluminum
Front Wheel Material
N/A
Spare Wheel Size
20 x -TBD- in
Rear Wheel Size
20 x -TBD- in
Front Wheel Size
LT275/70R18
Spare Tire Size
LT275/65R20
Rear Tire Size
LT275/65R20
Front Tire Size
Aluminum
Rear Wheel Material
Steel
Spare Wheel Material

Weight & Capacity

26,000 lbs
Gross Combined Wt Rating
5,000 lbs
Dead Weight Hitch - Max Trailer Wt.
500 lbs
Dead Weight Hitch - Max Tongue Wt.
16,000 lbs
Wt Distributing Hitch - Max Trailer Wt.
1,600 lbs
Wt Distributing Hitch - Max Tongue Wt.
17,900 lbs
Fifth Wheel Hitch - Max Trailer Wt.
4,475 lbs
Fifth Wheel Hitch - Max Tongue Wt.
20,000 lbs
Maximum Trailering Capacity
4,114 lbs
Maximum Payload Capacity
4,114 lbs
As Spec'd Payload
6,936 lbs
As Spec'd Curb Weight
0 lbs
Option Weight - Rear
0 lbs
Option Weight - Front
2,847 lbs
Curb Weight - Rear
4,089 lbs
Curb Weight - Front
36 gal
Fuel Tank Capacity, Approx
N/A
Aux Fuel Tank Capacity, Approx
N/A
Gross Axle Weight Rating
6,936 lbs
Curb Weight
0 lbs
Total Option Weight
11,050 lbs
Gross Vehicle Weight Rating
N/A
Base Curb Weight

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2026 GMC Sierra 2500 AT4

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