GMC Sierra 2500HD III (GMT900, facelift 2011) Crew Cab Standard Box 6.6 Duramax TD V8 (397 Hp) 4WD Automatic


Overall Rating

8.3 / 10
Safety N/A / 5
Not Rated
Engine 4.7 / 5
Value 4.0 / 5
Performance 4.5 / 5
Comfort 3.5 / 5
People\'s Opinion N/A / 5
Not Rated

GMC Sierra 2500HD:

The Chevrolet Silverado is a range of trucks manufactured by General Motors under the Chevrolet brand. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The fourth generation of the model line was introduced for the 2019 model year.
The Chevrolet Silverado shares mechanical commonality with the identically related GMC Sierra; GMC ended the use of the C/K nomenclature a model generation prior to Chevrolet. In Mexico, high-trim level versions of the Silverado use the Chevrolet Cheyenne name Starting with the LT trim. Standard and "Custom" trims are still called Silverado. Competing against the Ford F-Series, Ram pickup, Toyota Tundra, and Nissan Titan, the Silverado is among the best-selling vehicles in the United States, having sold over 12 million trucks since its introduction in 1998 as a 1999 model year....(Read more on Wikipedia)

III (GMT900, facelift 2011) Crew Cab Standard Box Overview:

GMC Sierra 2500HD (III (GMT900, facelift 2011) Crew Cab Standard Box). With 1037 Nm of torque, it offers ample pulling power. At around 3308 kg, it’s on the heavier side. All‑wheel drive provides excellent grip, ideal for off‑road use. A vehicle with an open cargo bed at the back, suitable for transporting goods. Seating for 5 makes it ideal for daily use.

6.6 Duramax TD V8 (397 Hp) 4WD Automatic Verdict:

Rating 5 stars

Performance Verdict

Identical to the 2WD Duramax in power, with added 4WD capability for superior traction in adverse conditions or off-road.

Fuel Economy

Excellent for a heavy-duty diesel with 4WD, though slightly less efficient than its 2WD counterpart due to drivetrain losses.

Best Use Case: Heavy towing and hauling in challenging terrain, construction sites, off-road utility, or regions with harsh weather.

Pros and Cons:

Pros:

  • • Exceptional towing and hauling capabilities, especially with the Duramax diesel.
  • • Robust and durable construction, built for heavy-duty work.
  • • Spacious and comfortable Crew Cab interior for passengers.
  • • Wide range of powerful engine options to suit various needs.
  • • Strong resale value in the heavy-duty truck segment.

Cons:

  • • Poor fuel economy, particularly with gasoline engines.
  • • Large size can be challenging for urban driving and parking.
  • • Ride quality can be stiff when unladen, typical for heavy-duty trucks.
  • • Higher purchase price and running costs compared to light-duty pickups.
  • • Interior design, while functional, may feel dated compared to some competitors.

Specifications:

Specifications are compared to those of the previous generation(III (GMT900) Extended Cab Long Box: 2007 - 2010).

General:
Brand:GMC
Model:Sierra 2500HD
Generation:III (GMT900, facelift 2011) Crew Cab Standard Box
Modification (Engine):6.6 Duramax TD V8 (397 Hp) 4WD Automatic
Start of production:2011
End of production:2014
Powertrain Architecture:Internal Combustion engine
Body type:Pick-up
Seats:5
Doors:5
Engine:
Engine systems:Particulate filter
Power:397 Hp @ 3000 rpm. Same horsepower
Power per litre:60.2 Hp/l [229mm less]
Torque:1037 Nm @ 1600 rpm.
Engine Model/Code:Duramax LML More details about the engine Duramax LML
Engine displacement:6599
Number of cylinders:8
Engine configuration:V-engine
Number of valves per cylinder:4
Fuel injection system:Diesel Commonrail
Engine aspiration:Turbocharger, Intercooler
Valvetrain:OHV
Engine oil capacity:9.5 l
Coolant:24 l
Engine layout:Front, Longitudinal
Cylinder Bore:103 mm mm
Piston Stroke:99 mm mm
Compression ratio:16:1
Maximum engine speed:3000 rpm.
Performance:
Fuel Type:Diesel
Weight-to-power ratio:8.3 kg/Hp, 120 Hp/tonne
Weight-to-torque ratio:3.2 kg/Nm, 313.5 Nm/tonne
Space:
Kerb Weight:3308
Max. weight:4536
Max load:1228
Trunk (boot) space - maximum:1718 l
Permitted trailer load with brakes (12%):5897 kg
Fuel tank capacity:136 l
Size:
Length:6101 mm mm [229mm less]
Width:2032 mm mm [404mm less]
Height:1958 mm mm [28mm more]
Wheelbase:3904 mm mm [97mm less]
Width including mirrors:2032 mm
Front track:1748 mm
Rear (Back) track:1709 mm
Ride height (ground clearance):208 mm
Minimum turning circle (turning diameter):15.4 m [above average]
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary.
Drive wheelAll wheel drive (4x4)
Number of gears6
Transmission typeAutomatic
Gearbox typeAllison
Front brakesVentilated discs, 350x40 mm [Best for performance and cooling.]
Rear brakesVentilated discs, 360x34 mm [Best for performance and cooling.]
Assisting systemsABS (Anti-lock braking system)
Steering typeCone worm with recirculation balls
Tires size245/75 R17; 265/70 R17; 265/70 R18; 265/60 R20
Wheel rims size7.5J x 17; 8J x 18; 8.5J x 20
Front suspensionIndependent torsion bar, double wishbone
Rear suspensionRigid axle suspension, Leaf spring

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