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Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic

General information
No photo
Power 401 Hp @ 5200 rpm.
Torque 629 Nm @ 4000 rpm.
Brand
GMC
Model
Sierra 3500HD
Generation
Sierra 3500HD V (GMTT1XX, facelift 2024) Double Cab Long Bed
Modification (Engine)
6.6 V8 (401 Hp) 4WD SRW Automatic
Start of production
2024 year
Powertrain Architecture
Internal Combustion engine
Powertrain architecture classifies the propulsion technology of the vehicle, such as internal combustion, electric (BEV), or hybrid.
Body type
Pick-up
Body type refers to the structural design and shape of the vehicle (such as Sedan, Hatchback, SUV, or Coupe).
Seats
5
Seat count specifies the maximum passenger capacity the vehicle is legally approved to transport at once.
Doors
4
Door count indicates the total number of entry points for passengers and cargo access (e.g., 3-door, 5-door).

Gmc Sierra 3500HD Review

Introduced in 2024, the Gmc Sierra 3500HD (generation Sierra 3500HD V (GMTT1XX, facelift 2024) Regular Cab Long Bed) is a classic Pick-up offering the 6.6 V8 (401 Hp) 4WD DRW Automatic specification. Its propulsion comes from a setup, generating a respectable 401 Hp @ 5200 rpm.. Featuring Naturally aspirated engine aspiration, it produces a peak torque of 629 Nm @ 4000 rpm. for robust performance.

Known for its technical specifications and performance, the Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic (2024 -) remains a popular choice for many drivers. This version boasts a robust powertrain under the hood, producing a total of 401 Hp @ 5200 rpm.. It demonstrates a steady character and inspires confidence through its handling. With its timeless design, this version maintains a popular profile according to CarWiki.
📊 Model Comparison AnalysisThis model has **69 Hp** lower power than 6.6 Duramax TD V8 (470 Hp) 4WD DRW Automatic. This model has **69 Hp** lower power than 6.6 Duramax TD V8 (470 Hp) 4WD SRW Automatic.
FAQ
How many horsepower does Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic have? +
The Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic model is equipped with an engine producing 401 Hp @ 5200 rpm. total horsepower.
What drivetrain does the Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic have? +
This model transfers power to the road via a All wheel drive (4x4) drivetrain.
Is the Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic a good car? +
Considering the technical specs and market position, the Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic is a highly competitive and desirable model in its class.
Is Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic reliable? +
The Gmc 6.6 V8 (401 Hp) 4WD DRW Automatic is built with high engineering standards and is generally considered a reliable vehicle with proper maintenance.
Performance specs
Fuel Type
Petrol (Gasoline)
Fuel type defines the primary source of energy required by the vehicle’s engine (petrol, diesel, electricity, hybrid, LPG, etc.).
Weight-to-power ratio
8 kg/Hp, 124.4 Hp/tonne
Weight-to-torque ratio
5.1 kg/Nm, 195.2 Nm/tonne
Engine specs
Power
401 Hp @ 5200 rpm.
Torque
629 Nm @ 4000 rpm.
Torque represents the engine’s rotational force, which determines pulling power. High torque ensures responsive acceleration and stronger uphill performance.
Engine layout
Front, Longitudinal
Engine layout defines the position and alignment of the engine block. This layout affects the car’s weight distribution, handling, and interior cabin space.
Engine Model Code
L8T
Number of cylinders
8
Cylinder count represents the number of combustion chambers. More cylinders generally result in smoother operation and a refined engine note.
Engine configuration
V-engine
Cylinder bore
103.25 mm
Piston stroke
98 mm
Compression ratio
10.8:1
Number of valves per cylinder
2
Valves per cylinder control the airflow into and exhaust out of the engine. More valves improve high-RPM breathing and performance.
Fuel injection system
Direct injection
Engine aspiration
Naturally aspirated engine
Aspiration describes how the engine draws air into its cylinders, distinguishing naturally aspirated setups from turbochargers or superchargers.
Valvetrain
OHV
Engine oil capacity
7.6 l
Coolant
14.6 l
Space, Volume and weights
Kerb Weight
3223 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
Max. weight
5261 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
Max. load
2038 kg
Fuel tank capacity
136 l
Permitted trailer load with brakes (12%)
7257 kg
Dimensions
Length
6534 mm
Width including mirrors
2079 mm
Height
2054 mm
Wheelbase
4127 mm
Front track
1731 mm
Rear / Back Track
1736 mm
Ride height (ground clearance)
257 mm
Drivetrain, brakes and suspension specs
Drivetrain Architecture
The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary.
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
Drive wheel
All wheel drive (4x4)
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
Number of gears and type of gearbox
10 gears, automatic transmission Allison
Front suspension
Independent torsion bar, double wishbone
The suspension system absorbs road bumps, providing cabin comfort and keeping tires firmly planted on the road surface.
Rear suspension
Rigid axle suspension, Leaf spring
The suspension system absorbs road bumps, providing cabin comfort and keeping tires firmly planted on the road surface.
Front brakes
Ventilated discs, 355x40 mm
The brake system is a vital safety component that uses friction to slow down or bring the vehicle to a complete stop.
Rear brakes
Ventilated discs, 360x34 mm
The brake system is a vital safety component that uses friction to slow down or bring the vehicle to a complete stop.
Assisting systems
ABS (Anti-lock braking system)
Steering type
Cone worm with recirculation balls
Power steering
Hydraulic Steering
Tires size
275/70 R18; 275/65 R20
Tire size specifies the tread width, aspect ratio, and rim diameter, affecting the balance between handling grip and ride comfort.
Wheel rims size
8J x 18; 8.5J x 20
Common OBD2 Fault Codes
U0276 🟡 Medium
Lost Communication with Door/Seat Module U0276
Diagnostic Guide
U0278 🟡 Medium
Lost Communication with Door/Seat Module U0278
Diagnostic Guide
U0280 🟡 Medium
Lost Communication with Door/Seat Module U0280
Diagnostic Guide
U0282 🟡 Medium
Lost Communication with Door/Seat Module U0282
Diagnostic Guide
Similar Models
Gmc Sierra 3500HD 6.6 V8 (401 Hp) SRW Automatic
Gmc Sierra 3500HD
6.6 V8 (401 Hp) SRW Automatic
Gmc Sierra 3500HD 6.6 V8 (401 Hp) 4WD SRW Automatic
Gmc Sierra 3500HD
6.6 V8 (401 Hp) 4WD SRW Automatic
Gmc Sierra 3500HD 6.6 V8 (401 Hp) 4WD DRW Automatic
Gmc Sierra 3500HD
6.6 V8 (401 Hp) 4WD DRW Automatic
Gmc Sierra 3500HD 6.6 Duramax TD V8 (470 Hp) SRW Automatic
Gmc Sierra 3500HD
6.6 Duramax TD V8 (470 Hp) SRW Automatic
User Reviews
T
Thomas V.
26 days ago
★★★★★
How is the long-term reliability of this model?
T
Thomas X
27 months ago
★★★★☆
Anyone knows the real-world N/A usage?
H
Henry K.
4 months ago
★★★★☆
Does anyone experience any rattles or squeaks over time?
J
Jack T.
13 months ago
★★★★☆
Switched from a different brand. N/A efficiency is surprisingly good for this class. The handling in corners is very safe. If you are thinking about buying one, go test drive it.
N
Noah 95
15 months ago
★★★★☆
Does anyone experience any rattles or squeaks over time?

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