Comparison Chevrolet Silverado 3500 HD IV (T1XX) Regular Cab Long Bed 6.6 Duramax TD V8 (445 Hp) SRW Automatic & GMC Sierra 3500HD V (GMTT1XX, facelift 2024) Crew Cab Long Bed 6.6 V8 (401 Hp) 4WD SRW Automatic
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| Brand: | Chevrolet | GMC |
| Model: | Silverado 3500 HD | Sierra 3500HD |
| Generation: | Silverado 3500 HD IV (T1XX) Regular Cab Long Bed | Sierra 3500HD V (GMTT1XX, facelift 2024) Crew Cab Long Bed |
| Engine / modification: | 6.6 Duramax TD V8 (445 Hp) SRW Automatic | 6.6 V8 (401 Hp) 4WD SRW Automatic |
| Production start: | 2020 year | 2024 year |
| Production end: | 2023 year | |
| Coupe type: | Pick-up | Pick-up |
| Powertrain Architecture: | Internal Combustion engine | Internal Combustion engine |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 2 | 5 |
| Fuel Type: | Diesel | Petrol (Gasoline) |
| Fuel tank volume: | 106 l | 136 l |
| Power: | 445 hp | 401 hp |
| Max power in: | 2800 rpm. | 5200 rpm. |
| Torque: | 1234 Nm @ 1600 rpm. | 629 Nm @ 4000 rpm. |
| Model Engine: | Duramax L5P | L8T |
| Engine displacement: | 6604 cm3 | |
| Engine oil capacity: | 9.5 l | 7.6 l |
| Coolant: | 29.1 l | 14.6 l |
| Aspiration / Turbine: | Naturally aspirated engine | |
| Valvetrain: | OHV | OHV |
| Number of cylinders: | 8 | 8 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 16 | 10.8 |
| Piston Stroke: | 99 mm | 98 mm |
| Cylinder Bore: | 103 mm | 103.25 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) |
| Length: | 5982 mm | 6776 mm |
| Width including mirrors: | 2076 mm | 2079 mm |
| Height: | 2056 mm | 2049 mm |
| Wheelbase: | 3595 mm | 4369 mm |
| Front track: | 1731 mm | 1731 mm |
| Rear (Back) track: | 1736 mm | 1736 mm |
| Ride height(clearance): | 285 mm | 283 mm |
| Front suspension: | Independent torsion bar, double wishbone | Independent torsion bar, double wishbone |
| Max weight: | 5216 kg | 5307 kg |
| Kerb Weight: | 3287 kg | 3261 kg |
| Steering type: | Cone worm with recirculation balls | Cone worm with recirculation balls |
| Power steering: | Hydraulic Steering | Hydraulic Steering |
| Permitted trailer load with brakes (12%): | 9752 kg | 7257 kg |
| Tire size: | 235/80 R17; 265/70 R17; 245/75 R17; 275/70 R18 | 275/70 R18; 275/65 R20 |
| Wheel rims size: | 7.5J x 17; 8J x 18 | 8J x 18; 8.5J x 20 |