Gmc 6.6 Duramax TD V8 (397 Hp) 4WD Automatic
General information
| Power | 397 Hp @ 3000 rpm. |
|---|---|
| Torque | 1037 Nm @ 1600 rpm. |
| Brand |
GMC
|
|---|---|
| Model |
Sierra 2500HD
|
| Generation |
Sierra 2500HD IV (GMTK2XX) Crew Cab Long Box
|
| Modification (Engine) |
6.6 Duramax TD V8 (397 Hp) Automatic
|
| Start of production |
2015 year
|
| End of production |
2017 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).
|
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 |
8.2 kg/Hp, 121.7 Hp/tonne
|
| Weight-to-torque ratio |
3.1 kg/Nm, 317.9 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.
|
| 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 |
22.4 l
|
| Engine systems |
Particulate filter
|
Space, Volume and weights
| Kerb Weight |
3262 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 |
1274 kg
|
| Trunk (boot) space - maximum |
2162 l
|
| Fuel tank capacity |
136 l
|
| Permitted trailer load with brakes (12%) |
6577 kg
|
Dimensions
| Length |
6563 mm
|
|---|---|
| Width including mirrors |
2045 mm
|
| Height |
1981 mm
|
| Wheelbase |
4258 mm
|
| Front track |
1748 mm
|
| Rear / Back Track |
1709 mm
|
| Ride height (ground clearance) |
211 mm
|
| Minimum turning circle (turning diameter) |
17.1 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 |
Coil spring, Double wishbone, Transverse stabilizer
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
Similar Models
User Reviews
G
George K.
26 months ago
★★★★★
Perfect size and choice for our small family. Engine performance exceeded my expectations. Sound insulation is great, very quiet cabin at high speeds. Planning to keep it for a long time.
•
J
Jacob A.
8 days ago
★★★★★
Finally got the keys today. The 397 Hp @ 3000 rpm. hp feels powerful on the road. Sound insulation is great, very quiet cabin at high speeds. No regrets so far, extremely happy with my purchase.
•
L
Leo X
8 months ago
★★★☆☆
Are there any known transmission issues?
•
G
George K.
7 months ago
★★★★☆
How is the long-term reliability of this model?
•
J
Jack Z.
14 days ago
★★★★☆
Mainly using it for my daily commute to work. Very responsive throttle, makes highway overtaking a breeze. The infotainment is fast and lag-free. Planning to keep it for a long time.
•