| General | |
| Body type | Pick-up |
| Brand | GMC |
| Doors | 4 |
| End of production | 2023 |
| Generation | Sierra 2500HD V (GMTT1XX) Crew Cab Long Bed |
| Model | Sierra 2500HD |
| Modification (Engine) | 6.6 V8 (401 Hp) 4WD Automatic |
| Powertrain Architecture | Internal Combustion engine |
| Seats | 5 |
| Start of production | 2020 |
| Performance | |
| Fuel Type | Petrol (Gasoline) |
| Dimensions | |
| Front track | 1731 mm |
| Height | 2023 mm |
| Length | 6759 mm |
| Rear (Back) track | 1736 mm |
| Ride height (ground clearance) | 256 mm |
| Wheelbase | 4369 mm |
| Engine | |
| Compression ratio | 10.8 |
| Coolant | 14.6 l |
| Cylinder Bore | 103.25 mm |
| Engine Model/Code | L8T |
| Engine aspiration | Naturally aspirated engine |
| Engine configuration | V-engine |
| Engine layout | Front, Longitudinal |
| Engine oil capacity | 7.6 l |
| Fuel injection system | Direct injection |
| Number of cylinders | 8 |
| Number of valves per cylinder | 2 |
| Power | 401 Hp @ 5200 rpm. |
| Torque | 629 Nm @ 4000 rpm. |
| Drivetrain | |
| Drive wheel | All wheel drive (4x4) |
| Front brakes | Ventilated discs, 355x40 mm |
| Front suspension | Coil spring, Double wishbone, Transverse stabilizer |
| Number of gears and type of gearbox | 6 gears, automatic transmission Hydra-Matic |
| Power steering | Hydraulic Steering |
| Rear brakes | Ventilated discs, 360x34 mm |
| Rear suspension | Rigid axle suspension, Leaf spring |
| Steering type | Cone worm with recirculation balls |
| Tires size | 265/70 R17; 245/75 R17; 275/70 R18 |
| Wheel rims size | 7.5J x 17; 8J x 18 |
| Space | |
| Fuel tank capacity | 136 l |
| Kerb Weight | 3140 kg |
| Max load | 1691 kg |
| Max. weight | 4831 kg |
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