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Specs of GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed 6.6 V8 (401 Hp) Automatic /2023, 2024, 2025, 2026/

Key specs

GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed 6.6 V8 (401 Hp) Automatic /Pick-up 2023 - /

What is the body type of GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed?
Pick-up, 4 Doors, 5 Seats
What is the power output of GMC Sierra 2500HD Pick-up 2023 6.6 V8 (401 Hp) Automatic?
401 Hp, 629 Nm
464 lb.-ft.
What is the number of cylinders in 2023 GMC 6.6 V8 (401 Hp) Automatic?
8, V-engine
What is the drivetrain of GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed Pick-up 2023 6.6 V8 (401 Hp) Automatic?
Rear wheel drive. Internal Combustion engine. The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
What is the length of 2023 GMC Sierra 2500HD Pick-up?
6127 mm
241.22 in.
What is the width of 2023 GMC Sierra 2500HD Pick-up?
2079 mm
81.85 in.
What is the kerb weight of 2023 GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed 6.6 V8 (401 Hp) Automatic?
2985 kg
6581 lbs.
What is the maximum permissible mass of 2023 GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed 6.6 V8 (401 Hp) Automatic?
4559 kg
10051 lbs.
What are the number of gears and the gearbox type of 2023 GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed 6.6 V8 (401 Hp) Automatic?
10, automatic transmission Allison
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General information

Brand
GMC
Model
Sierra 2500HD
Generation
Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed
Modification (Engine)
6.6 V8 (401 Hp) Automatic
Start of production
2023
Powertrain Architecture
Internal Combustion engine
Body type
Pick-up
Seats
5
Doors
4
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Performance specs

Fuel Type
Petrol (Gasoline)
Weight-to-power ratio
7.4 kg/Hp, 134.3 Hp/tonne
Weight-to-torque ratio
4.7 kg/Nm, 210.7 Nm/tonne

Engine specs

Power
401 Hp @ 5200 rpm.
Torque
629 Nm @ 4000 rpm. 464 lb.-ft. @ 4000 rpm.
Engine layout
Front, Longitudinal
Engine Model/Code
L8T
Number of cylinders
8
Engine configuration
V-engine
Cylinder Bore
103.25 mm 4.06 in.
Piston Stroke
98 mm 3.86 in.
Compression ratio
10.8:1
Number of valves per cylinder
2
Fuel injection system
Direct injection
Engine aspiration
Naturally aspirated engine
Valvetrain
OHV
Engine oil capacity
7.6 l 8.03 US qt | 6.69 UK qt
Engine oil specification
Log in to see.Log in to see.
Coolant
14.6 l 15.43 US qt | 12.85 UK qt

Volume and weights

Kerb Weight
2985 kg 6581 lbs.
Max. weight
4559 kg 10051 lbs.
Max load
1574 kg 3470 lbs.
Fuel tank capacity
136 l 35.93 US gal | 29.92 UK gal
Permitted trailer load with brakes (12%)
6577 kg 14500 lbs.

Dimensions

Length
6127 mm 241.22 in.
Width including mirrors
2079 mm 81.85 in.
Height
2031 mm 79.96 in.
Wheelbase
3795 mm 149.41 in.
Front track
1731 mm 68.15 in.
Rear (Back) track
1736 mm 68.35 in.
Ride height (ground clearance)
258 mm 10.16 in.

Drivetrain, brakes and suspension specs

Drivetrain Architecture
The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheel
Rear wheel drive
Number of gears and type of gearbox
10 gears, automatic transmission Allison
Front suspension
Independent torsion bar, double wishbone
Rear suspension
Rigid axle suspension, Leaf spring
Front brakes
Ventilated discs, 355x40 mm
Rear brakes
Ventilated discs, 360x34 mm
Assisting systems
ABS (Anti-lock braking system)
Steering type
Recirculating-ball steering
Power steering
Hydraulic Steering
Tire size
245/75 R17; 265/70 R17; 275/70 R18; 275/65 R20
Wheel rim size
7.5J x 17; 8J x 18; 8.5J x 20