Gmc 6.6 Duramax TD V8 (397 Hp) Automatic
General information
| Power | 397 Hp @ 3000 rpm. |
|---|---|
| Torque | 1037 Nm @ 1600 rpm. |
| Brand |
GMC
|
|---|---|
| Model |
Sierra 2500HD
|
| Generation |
Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Standard Box
|
| Modification (Engine) |
6.6 Duramax TD V8 (397 Hp) Automatic
|
| Start of production |
2011 year
|
| End of production |
2014 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 |
2
Door count indicates the total number of entry points for passengers and cargo access (e.g., 3-door, 5-door).
|
FAQ
Performance specs
| Fuel Type |
Diesel
Fuel type defines the primary source of energy required by the vehicle’s engine (petrol, diesel, electricity, hybrid, LPG, etc.).
|
|---|---|
| Weight-to-power ratio |
7.8 kg/Hp, 127.9 Hp/tonne
|
| Weight-to-torque ratio |
3 kg/Nm, 334 Nm/tonne
|
Engine specs
| Power |
397 Hp @ 3000 rpm.
|
|---|---|
| Power per litre |
60.2 Hp/l
Power per litre (specific power) measures the engine power relative to its displacement. A higher value indicates advanced efficiency and engineering quality.
|
| Torque |
1037 Nm @ 1600 rpm.
Torque represents the engine’s rotational force, which determines pulling power. High torque ensures responsive acceleration and stronger uphill performance.
|
| Maximum engine speed |
3000 rpm.
|
| 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 |
Duramax LML
|
| Engine displacement |
6599 cm3
Engine displacement represents the combined volume of all cylinders. It is a direct indicator of engine size and baseline performance potential.
|
| 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 mm
|
| Piston stroke |
99 mm
|
| Compression ratio |
16:1
|
| Number of valves per cylinder |
4
Valves per cylinder control the airflow into and exhaust out of the engine. More valves improve high-RPM breathing and performance.
|
| Fuel injection system |
Diesel Commonrail
|
| Engine aspiration |
Turbocharger, Intercooler
Aspiration describes how the engine draws air into its cylinders, distinguishing naturally aspirated setups from turbochargers or superchargers.
|
| Valvetrain |
OHV
|
| Engine oil capacity |
9.5 l
|
| Coolant |
24 l
|
| Engine systems |
Particulate filter
|
Space, Volume and weights
| Kerb Weight |
3105 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
|
|---|---|
| Max. weight |
4536 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
|
| Max. load |
1431 kg
|
| Trunk (boot) space - maximum |
1718 l
|
| Fuel tank capacity |
136 l
|
| Permitted trailer load with brakes (12%) |
5897 kg
|
Dimensions
| Length |
5857 mm
|
|---|---|
| Width including mirrors |
2032 mm
|
| Height |
1979 mm
|
| Wheelbase |
3663 mm
|
| Front track |
1748 mm
|
| Rear / Back Track |
1709 mm
|
| Ride height (ground clearance) |
218 mm
|
| Minimum turning circle (turning diameter) |
14.6 m
|
Drivetrain, brakes and suspension specs
| Drivetrain Architecture |
The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
|
|---|---|
| Drive wheel |
Rear wheel drive
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 |
6 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, 350x40 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
|
| Tires size |
245/75 R17; 265/70 R17; 265/70 R18; 265/60 R20
Tire size specifies the tread width, aspect ratio, and rim diameter, affecting the balance between handling grip and ride comfort.
|
| Wheel rims size |
7.5J x 17; 8J x 18; 8.5J x 20
|
Common OBD2 Fault Codes
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User Reviews
N
Noah K.
4 months ago
★★★★☆
Switched from a different brand. Acceleration is punchy and satisfying. Interior quality is premium for this class. If you're undecided, just go for it.
•
N
Noah X
23 days ago
★★★★★
Mainly using it for my daily commute to work. Engine performance exceeded my expectations. Interior quality is premium for this class. Planning to keep it for a long time.
•
J
Jacob 92
20 days ago
★★★★☆
Got this car a few months ago. The engine is snappy, great response time. Comfort is top-notch, great seats. Definitely a solid choice in this price range.
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