Home >> Car catalog >> GMC >> Sierra 2500HD >> Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box >> 6.6 Duramax TD V8 (397 Hp) Automatic
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Specs of GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box 6.6 Duramax TD V8 (397 Hp) Automatic /2011, 2012, 2013, 2014/

2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box - Photo 1
GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box - Photo 2

Key specs

GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box 6.6 Duramax TD V8 (397 Hp) Automatic /Pick-up 2011 - 2014/

What is the body type of GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box?
Pick-up, 2 Doors, 5 Seats
What is the power output of GMC Sierra 2500HD Pick-up 2011 6.6 Duramax TD V8 (397 Hp) Automatic?
397 Hp, 1037 Nm
765 lb.-ft.
What is the engine displacement of GMC Sierra 2500HD Pick-up 2011 6.6 Duramax TD V8 (397 Hp) Automatic?
6.6 l
6599 cm3
402.7 cu. in.
What is the number of cylinders in 2011 GMC 6.6 Duramax TD V8 (397 Hp) Automatic?
8, V-engine
What is the drivetrain of GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box Pick-up 2011 6.6 Duramax TD V8 (397 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 2011 GMC Sierra 2500HD Pick-up?
6337 mm
249.49 in.
What is the width of 2011 GMC Sierra 2500HD Pick-up?
2032 mm
80 in.
What is the kerb weight of 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box 6.6 Duramax TD V8 (397 Hp) Automatic?
3168 kg
6984 lbs.
What is the maximum permissible mass of 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box 6.6 Duramax TD V8 (397 Hp) Automatic?
4536 kg
10000 lbs.
What is the trunk (boot) capacity of 2011 GMC Sierra 2500HD Pick-up?
2138 l
75.5 cu. ft.
What are the number of gears and the gearbox type of 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box 6.6 Duramax TD V8 (397 Hp) Automatic?
6, automatic transmission Allison
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General information

Brand
GMC
Model
Sierra 2500HD
Generation
Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box
Modification (Engine)
6.6 Duramax TD V8 (397 Hp) Automatic
Start of production
2011
End of production
2014
Powertrain Architecture
Internal Combustion engine
Body type
Pick-up
Seats
5
Doors
2
Looking for GMC Sierra 2500HD on the used-car market?
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Performance specs

Fuel Type
Diesel
Weight-to-power ratio
8 kg/Hp, 125.3 Hp/tonne
Weight-to-torque ratio
3.1 kg/Nm, 327.3 Nm/tonne

Engine specs

Power
397 Hp @ 3000 rpm.
Power per litre
60.2 Hp/l
Torque
1037 Nm @ 1600 rpm. 765 lb.-ft. @ 1600 rpm.
Maximum engine speed
3000 rpm.
Engine layout
Front, Longitudinal
Engine Model/Code
Duramax LML
Engine displacement
6599 cm3 402.7 cu. in.
Number of cylinders
8
Engine configuration
V-engine
Cylinder Bore
103 mm 4.06 in.
Piston Stroke
99 mm 3.9 in.
Compression ratio
16:1
Number of valves per cylinder
4
Fuel injection system
Diesel Commonrail
Engine aspiration
Turbocharger, Intercooler
Valvetrain
OHV
Engine oil capacity
9.5 l 10.04 US qt | 8.36 UK qt
Engine oil specification
Log in to see.Log in to see.
Coolant
24 l 25.36 US qt | 21.12 UK qt
Engine systems
Particulate filter

Volume and weights

Kerb Weight
3168 kg 6984 lbs.
Max. weight
4536 kg 10000 lbs.
Max load
1368 kg 3016 lbs.
Trunk (boot) space - maximum
2138 l 75.5 cu. ft.
Fuel tank capacity
136 l 35.93 US gal | 29.92 UK gal
Permitted trailer load with brakes (12%)
5897 kg 13001 lbs.

Dimensions

Length
6337 mm 249.49 in.
Width including mirrors
2032 mm 80 in.
Height
1971 mm 77.6 in.
Wheelbase
4018 mm 158.19 in.
Front track
1748 mm 68.82 in.
Rear (Back) track
1709 mm 67.28 in.
Ride height (ground clearance)
216 mm 8.5 in.
Minimum turning circle (turning diameter)
15.8 m 51.84 ft.

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
6 gears, automatic transmission Allison
Front suspension
Independent torsion bar, double wishbone
Rear suspension
Rigid axle suspension, Leaf spring
Front brakes
Ventilated discs, 350x40 mm
Rear brakes
Ventilated discs, 360x34 mm
Assisting systems
ABS (Anti-lock braking system)
Steering type
Recirculating-ball steering
Tire size
245/75 R17; 265/70 R17; 265/70 R18; 265/60 R20
Wheel rim size
7.5J x 17; 8J x 18; 8.5J x 20