GMC Sierra 2500HD IV (GMTK2XX) Double Cab Long Box 6.6 Duramax TD V8 (397 Hp) Automatic


Overall Rating

8.5 / 10
Safety N/A / 5
Not Rated
Engine 4.8 / 5
Value 4.0 / 5
Performance 4.5 / 5
Comfort 3.8 / 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)

IV (GMTK2XX) Double Cab Long Box Overview:

GMC Sierra 2500HD (IV (GMTK2XX) Double Cab Long Box). With 1037 Nm of torque, it offers ample pulling power. At around 3202 kg, it’s on the heavier side. Rear‑wheel drive offers dynamic handling and sporty feedback. 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) Automatic Verdict:

Rating 5 stars

Performance Verdict

Exceptional torque and power from the Duramax LML, making it ideal for heavy towing and hauling with smooth, robust automatic shifts.

Fuel Economy

Offers best-in-class fuel economy for a heavy-duty diesel, though still a large truck with significant consumption.

Best Use Case: Heavy-duty towing, commercial hauling, long-distance highway travel, and demanding work applications.

Pros and Cons:

Pros:

  • • Exceptional towing and hauling capabilities, especially with Duramax diesel
  • • Powerful and reliable Duramax diesel engine options
  • • Robust and durable construction designed for heavy work
  • • Comfortable and well-appointed interior for a heavy-duty truck
  • • Available advanced safety features for its time

Cons:

  • • Large size can be challenging to maneuver and park in urban environments
  • • Fuel economy for gasoline models is significantly lower than diesel
  • • Higher purchase price for diesel variants and top trims
  • • Ride quality can be stiff when the truck is unloaded
  • • Limited Euro NCAP safety data due to its market focus

Specifications:

Specifications are compared to those of the previous generation(III (GMT900, facelift 2011) Crew Cab Standard Box: 2013 - 2014).

General:
Brand:GMC
Model:Sierra 2500HD
Generation:IV (GMTK2XX) Double Cab Long Box
Modification (Engine):6.6 Duramax TD V8 (397 Hp) Automatic
Start of production:2015
End of production:2017
Powertrain Architecture:Internal Combustion engine
Body type:Pick-up
Seats:5
Doors:4
Engine:
Engine systems:Particulate filter
Power:397 Hp @ 3000 rpm. Same horsepower
Power per litre:60.2 Hp/l [220mm more]
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:22.4 l
Engine layout:Front, Longitudinal
Cylinder Bore:103 mm mm
Piston Stroke:99 mm mm
Compression ratio:16:1
Performance:
Fuel Type:Diesel
Weight-to-power ratio:8.1 kg/Hp, 124 Hp/tonne
Weight-to-torque ratio:3.1 kg/Nm, 323.9 Nm/tonne
Space:
Kerb Weight:3202
Max. weight:4536
Max load:1334
Trunk (boot) space - maximum:2162 l
Permitted trailer load with brakes (12%):6577 kg
Fuel tank capacity:136 l
Size:
Length:6321 mm mm [220mm more]
Width:2045 mm mm [13mm more]
Height:1978 mm mm [20mm more]
Wheelbase:4017 mm mm [113mm more]
Width including mirrors:2045 mm
Front track:1748 mm
Rear (Back) track:1709 mm
Ride height (ground clearance):216 mm
Minimum turning circle (turning diameter):16.2 m [above average]
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears6
Transmission typeAutomatic
Gearbox typeAllison
Front brakesVentilated discs, 355x40 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 suspensionCoil spring, Double wishbone, Transverse stabilizer
Rear suspensionRigid axle suspension, Leaf spring

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