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GMC Sierra HD Specifications

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GMC Sierra HD Specifications

The GMC Sierra HD is a heavy-duty truck offered as 2500 and 3500 with petrol or Duramax diesel engines.

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Vehicle specifications

GMC Sierra HD

Key specifications

Transmission

4- to 10-speed manual or automatic

Seating capacity

2 to 6 depending on cab

Engine displacement

2.5 to 6.6 L

Fuel type

Petrol or diesel

Fuel tank or battery

60–136 L

Cylinders

4, 6 or 8 cylinders

Drivetrain

Rear- or four-wheel drive

Generations and model years

Generation: Early generations
Model years: 2001–2006
Notes: Heavy-duty version with V8 engines and higher towing and payload capacity.

Generation: Modern generations
Model years: 2007–2026

Detailed specifications

Engine and performance

Engine type: Petrol V6/V8 or Duramax diesel engines
Displacement: 2.5 to 6.6 L
Cylinders: 4, 6 or 8 cylinders
Maximum power: Approximately 120–470 hp
Maximum torque: Approximately 260–1,330 Nm

These are reference specifications across different generations, trims and markets. A vehicle in Sudan may differ by model year, engine, trim and import market. Verify the individual vehicle using its VIN or original brochure.

Source: Official GMC vehicle lineup Current GMC vehicle lineup Hummer EV specifications guide Official GMC newsroom

Notes

Sierra HD is offered as 2500 and 3500 with petrol or Duramax diesel engines.

Fuel

Petrol or diesel

Transmission and drivetrain

Transmission: 4- to 10-speed manual or automatic
Drivetrain: Rear- or four-wheel drive
Steering: Electric or hydraulic power steering

Dimensions and capacity

Dimensions: 5,300–6,350 × 1,880–2,080 mm
Wheelbase: 3,120–4,030 mm
Ground clearance: 180–290 mm
Tank or battery: 60–136 L

Suspension and brakes

Suspension: Independent front suspension and solid rear axle with coils or leaf springs
Brakes: Ventilated front/rear discs depending on payload

GMC Sierra HD Specifications | SUDAN AUTO