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2025 GMC Sierra 2500 Hd At4 (4Wd Crew Cab Standard Box) (6.6 L V8 Gasoline)
Service / Utility TrucksSierra HD
































































Description
The First Ever Sierra 2500 AT4 truck comes in a 4WD Crew Cab with a 6' 9" standard box or available 8' long box.
Specifications
Manufacturer
GMC
Model
Sierra 2500 Hd At4 (4Wd Crew Cab Standard Box) (6.6 L V8 Gasoline)
Year
2025
Category
Service / Utility Trucks
Subcategory
Sierra HD
Max Gcwr
24,000 LBS
Max Conventional Hitch
14,500 LBS
Max Fifth Wheel Hitch
16,620 LBS
Max Gooseneck Hitch
16,620 LBS
Max Payload
3,760 LBS
Axle Ratio
3.73
Wheelbase
158.9"
Max Payload (Lbs)
3751 lbs
Max Gvwr (Lbs)
10350 lbs
Max Conventional Trailering
14500 lbs
Max 5Th Wheel Trailering
16900 lbs
Max Gcwr (Lbs)
24000 lbs
Max Rear Gross Axle Weight Rating (Lbs)
6600 lbs
Max Front Gross Axle Weight Rating (Lbs)
4,400 lbs
Max Gcwr(One)
27,500 LBS
Max Gvwr
11,550 LBS
Wheelbase(One)
158.9-172 in
Ground Clearance
10.1 in
Fuel Tank Capacity (Approx)
36.0 gal
Front Suspension
Torsion Bar
Rear Suspension
3-Stage Leaf
4-Wheel Antilock Disc Brakes With Duralife Brake Rotors
4-Wheel
Cylinder Head Material
Cast Aluminum
Compression Ratio
10.75 : 1
Rear Axle Ring Gear Size
11.5 in
Cargo Bed Inside Length (At Floor)
82.2"
Wall To Wall
71.4"
Cargo Box Volume
69.6 cuft
Front Head Room
43.03 in
Front Leg Room
44.53 in
Front Shoulder Room
66.02 in
Front Hip Room
61.18 in
Second Head Room
39.88 in
Second Leg Room
43.40 in
Second Shoulder Room
65.30 in
Second Hip Room
60.24 in
Ground Clearance, Front
10.12 in
Ground Clearance, Rear
10.12 in
Cargo Box Length @ Floor
82.20 in
Cargo Box Width @ Floor
71.40 in
Cargo Box Width @ Wheelhousings
51.85 in
Cargo Box (Area) Height
21.00 in
Cargo Volume
69.50 ft³
Passenger Capacity
5
Valvetrain
Overhead-valve, two valves per cylinder, variable valve trimming
Front/Rear Tread Width
68.1/68.3 in
Overall Length
250.1"
Overall Width
81.9"
Overall Height
79.8"
Inside Height (Box)
21"
Inside Width (Between Wheelhousing)
51.9"
Length, Overall
250.08 in
Width, Max W/O Mirrors
81.85 in
Height, Overall
79.82 in
Turning Diameter (ft)
52.7 ft
Fuel Delivery
Direct Fuel Injection
Horsepower (Hp @Rpm)
401 @5200
Torque (lb-Ft @Rpm)
464 @4000
Gear Ratios (:1)
6L90
First Gear
4.03
Second Gear
2.36
Third Gear
1.53
Fourth Gear
1.15
Fifth Gear
0.85
Sixth Gear
0.67
Reverse
3.06
Fuel Type
Gas V8
Horsepower @ Rpm
401 @ 5200
Torque @ Rpm
464 @ 4000
Quick Enquiry
Service / Utility Trucks GMC Cars for Sale Pasadena
Find this GMC Sierra 2500 Hd At4 (4Wd Crew Cab Standard Box) (6.6 L V8 Gasoline) at Thorson Motor Center