Comparison GMC Sierra HD Crew Cab Standard Box 2500 6.6 TD V8 (445 Hp) SRW Automatic & GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed 6.6 Duramax TD V8 (470 Hp) 4WD Automatic & GMC Sierra 3500HD V (GMTT1XX, facelift 2024) Regular Cab Long Bed 6.6 V8 (401 Hp) 4WD DRW Automatic
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| Brand: | GMC | GMC | GMC |
| Model: | Sierra 2500HD | Sierra 2500HD | Sierra 3500HD |
| Generation: | Sierra HD Crew Cab Standard Box | Sierra 2500HD V (GMTT1XX, facelift 2024) Double Cab Standard Bed | Sierra 3500HD V (GMTT1XX, facelift 2024) Regular Cab Long Bed |
| Engine / modification: | 2500 6.6 TD V8 (445 Hp) SRW Automatic | 6.6 Duramax TD V8 (470 Hp) 4WD Automatic | 6.6 V8 (401 Hp) 4WD DRW Automatic |
| Production start: | 2018 year | 2023 year | 2024 year |
| Coupe type: | Pick-up | Pick-up | Pick-up |
| Powertrain Architecture: | Internal Combustion engine | Internal Combustion engine | |
| Num. of Doors: | 4 | 4 | 2 |
| Num. of seats: | 5 | 5 | 2 |
| Fuel Type: | Diesel | Diesel | Petrol (Gasoline) |
| Fuel tank volume: | 136 l | 111 l | 136 l |
| Power: | 445 hp | 470 hp | 401 hp |
| Max power in: | 2800 rpm. | 2800 rpm. | 5200 rpm. |
| Torque: | 1234 Nm @ 1600 rpm. | 1322 Nm @ 1600 rpm. | 629 Nm @ 4000 rpm. |
| Model Engine: | DURAMAX L5P | L5P | L8T |
| Engine position: | Front, longitudinal | ||
| Engine displacement: | 6588 cm3 | 6604 cm3 | |
| Engine oil capacity: | 9.5 l | 7.6 l | |
| Coolant: | 14.6 l | ||
| Fuel System: | Diesel Commonrail | ||
| Aspiration / Turbine: | Turbocharger | Naturally aspirated engine | |
| Position of cylinders: | V engine | ||
| Valvetrain: | OHV | OHV | |
| Number of cylinders: | 8 | 8 | 8 |
| Number of valves per cylinder: | 4 | 4 | 2 |
| Compression ratio: | 16 | 16 | 10.8 |
| Piston Stroke: | 99 mm | 99 mm | 98 mm |
| Cylinder Bore: | 103 mm | 103 mm | 103.25 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 6 | ||
| Length: | 6083 mm | 6127 mm | 6002 mm |
| Width including mirrors: | 2045 mm | 2079 mm | 2457 mm |
| Height: | 1988 mm | 2031 mm | 2038 mm |
| Wheelbase: | 3904 mm | 3795 mm | 3595 mm |
| Front track: | 1731 mm | 1731 mm | |
| Rear (Back) track: | 1736 mm | 1905 mm | |
| Ride height(clearance): | 258 mm | 266 mm | |
| Maximum amount of Luggage (trunk): | 1727 l | ||
| Front suspension: | Torsion | Independent torsion bar, double wishbone | Independent torsion bar, double wishbone |
| Rear suspension: | The spring | ||
| Max weight: | 4536 kg | 4990 kg | 6350 kg |
| Front brakes: | Ventilated discs | ||
| Rear brakes: | Ventilated discs | ||
| Kerb Weight: | 3265 kg | 3437 kg | 3182 kg |
| ABS: | yes | ||
| Steering type: | Steering rack and pinion | Cone worm with recirculation balls | Cone worm with recirculation balls |
| Power steering: | Electric Steering | Hydraulic Steering | Hydraulic Steering |
| Permitted trailer load with brakes (12%): | 5897 kg | 6577 kg | 8380 kg |
| Tire size: | 245/75 R17; 265/70 R17; 265/70 R18; 265/60 R20 | 235/80 R17; 265/70 R17; 245/75 R17; 265/70 R18; 265/60 R20 | 235/80 R17; 235/80 R18 |
| Wheel rims size: | 7J x 17; 7.5J x 17; 8J x 18; 8J x 20 | 7.5J x 17; 8J x 18; 8.5J x 20 | 6.5J x 17 |