| General | |
| Body type | Pick-up |
| Brand | GMC |
| Doors | 5 |
| End of production | 2014 |
| Generation | Sierra 2500HD III (GMT900, 2011) Crew Cab Standard Box |
| Model | Sierra 2500HD |
| Modification (Engine) | 6.6 Duramax TD V8 (397 Hp) 4WD Automatic |
| Powertrain Architecture | Internal Combustion engine |
| Seats | 5 |
| Start of production | 2011 |
| Performance | |
| Fuel Type | Diesel |
| Dimensions | |
| Front track | 1748 mm |
| Height | 1958 mm |
| Length | 6101 mm |
| Minimum turning circle (turning diameter) | 15.4 m |
| Rear (Back) track | 1709 mm |
| Ride height (ground clearance) | 208 mm |
| Wheelbase | 3904 mm |
| Engine | |
| Compression ratio | 16 |
| Coolant | 24 l |
| Cylinder Bore | 103 mm |
| Engine Model/Code | Duramax LML |
| Engine aspiration | Turbocharger, Intercooler |
| Engine configuration | V-engine |
| Engine displacement | 6599 cm |
| Engine layout | Front, Longitudinal |
| Engine oil capacity | 9.5 l |
| Engine systems | Particulate filter |
| Fuel injection system | Diesel Commonrail |
| Maximum engine speed | 3000 rpm. |
| Number of cylinders | 8 |
| Number of valves per cylinder | 4 |
| Power | 397 Hp @ 3000 rpm. |
| Torque | 1037 Nm @ 1600 rpm. |
| Drivetrain | |
| Drive wheel | All wheel drive (4x4) |
| Front brakes | Ventilated discs, 350x40 mm |
| Front suspension | Independent torsion bar, double wishbone |
| Number of gears and type of gearbox | 6 gears, automatic transmission Allison |
| Rear brakes | Ventilated discs, 360x34 mm |
| Rear suspension | Rigid axle suspension, Leaf spring |
| Steering type | Cone worm with recirculation balls |
| Tires size | 245/75 R17; 265/70 R17; 265/70 R18; 265/60 R20 |
| Wheel rims size | 7.5J x 17; 8J x 18; 8.5J x 20 |
| Space | |
| Fuel tank capacity | 136 l |
| Kerb Weight | 3308 kg |
| Max load | 1228 kg |
| Max. weight | 4536 kg |
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