Gears and transmission
SINOTRUK HOWO 371 6x4 Tractor Truck
- Bounding box
- 6800.0 × 2860.0 × 4200.2 mm
- Engine
- Precision B-rep
- Parameters
- 34
- Published
- November 10, 2026
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The prompt
# SINOTRUK HOWO 371 6×4 – COMPLETE 3D CAD GENERATION SPECIFICATION ## 1. Project Objective Create a highly detailed, visually complete and properly assembled 3D CAD model of the **SINOTRUK HOWO 371 6×4 heavy-duty tractor truck**. The model must represent the truck's exterior appearance, chassis, internal mechanical components, electrical systems and supporting structures. The purpose is to create a comprehensive mechanical model suitable for studying truck construction, inspecting individual systems and understanding how components connect and operate. Prioritize visual completeness, realistic positioning and proper mechanical relationships over exact factory-level engineering accuracy. Components do not require perfect manufacturing tolerances, but they must be correctly aligned and positioned close to their intended locations. ## 2. Vehicle Specifications and Dimensions Use the SINOTRUK HOWO 371 6×4 tractor as the primary reference. Required configuration: - Manufacturer: SINOTRUK. - Model: HOWO 371. - Vehicle type: Heavy-duty tractor truck. - Axle arrangement: 6×4, consisting of one front steering axle and two rear driving axles. - Engine: Heavy-duty diesel. - Transmission: Manual gearbox with clutch. - Driveline: Driveshafts, differentials and rear drive axles. - Coupling: Rear fifth-wheel assembly. Use manufacturer-published technical specifications, measurements and reference images wherever available. For unavailable dimensions, use reasonable estimates from comparable heavy-duty 6×4 trucks. Clearly distinguish documented measurements from estimated measurements. Use millimetres (mm) throughout. Include overall length, width and height, wheelbase, axle spacing, track width, cab dimensions, chassis dimensions, engine and gearbox dimensions, wheel sizes and component mounting positions. ## 3. Complete Vehicle Assembly Create a complete 3D assembly containing: - Cab and exterior body. - Chassis and frame. - Engine and transmission. - Clutch and driveline. - Front steering axle. - Two rear driving axles. - Wheels and tyres. - Suspension and steering. - Braking and compressed-air systems. - Fuel, cooling and exhaust systems. - Electrical system and wiring. - Fifth-wheel coupling. - Mounting brackets, fasteners,
Parameters
| Name | Value | Range |
|---|---|---|
| Chassis Length | 6800 mm | 4000 – 9000 |
| Chassis Width | 1000 mm | 600 – 1400 |
| Chassis Rail Depth | 300 mm | 150 – 500 |
| Frame Top Height | 1300 mm | 800 – 1800 |
| Cab Length | 2300 mm | 1500 – 3000 |
| Cab Width | 2500 mm | 1800 – 3000 |
| Cab Height | 2900 mm | 1800 – 3500 |
| Cab Front X Position | 200 mm | 0 – 1000 |
| Tyre Diameter | 1050 mm | 700 – 1300 |
| Tyre Width | 300 mm | 150 – 450 |
| Front Axle X Position | 1400 mm | 500 – 3000 |
| Front Track Width | 2050 mm | 1500 – 2600 |
| First Rear Axle X | 4600 mm | 3000 – 6500 |
| Rear Axle Spacing | 1350 mm | 900 – 1800 |
| Rear Track Width | 1850 mm | 1400 – 2400 |
| Engine Length | 1400 mm | 800 – 2000 |
| Engine Width | 900 mm | 500 – 1400 |
| Engine Height | 1100 mm | 600 – 1600 |
| Engine Front X Position | 1500 mm | 500 – 3000 |
| Gearbox Length | 1000 mm | 600 – 1600 |
| Gearbox Width | 600 mm | 400 – 1000 |
| Gearbox Height | 650 mm | 400 – 1000 |
| Driveshaft Diameter | 120 mm | 60 – 250 |
| Differential Width | 800 mm | 500 – 1200 |
| Fuel Tank Diameter | 600 mm | 300 – 900 |
| Fuel Tank Length | 900 mm | 400 – 1500 |
| Radiator Width | 1000 mm | 600 – 1500 |
| Radiator Height | 900 mm | 500 – 1400 |
| Air Reservoir Diameter | 200 mm | 100 – 400 |
| Air Reservoir Length | 400 mm | 200 – 800 |
| Exhaust Stack Diameter | 150 mm | 80 – 300 |
| Leaf Spring Length | 1600 mm | 1000 – 2200 |
| Fifth Wheel Plate Diameter | 1100 mm | 700 – 1500 |
| Fifth Wheel Plate Thickness | 150 mm | 60 – 300 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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