

The SINOTRUK HOWO NX 6X4 Tractor Truck is a powerful and reliable heavy-duty commercial vehicle designed for long-distance freight transportation, heavy cargo hauling, and demanding logistics operations. Manufactured by SINOTRUK, this tractor truck combines a robust chassis structure, advanced powertrain technology, and practical engineering design to deliver dependable performance across various transportation environments. Its 6×4 drive configuration provides excellent traction, stability, and load-handling capability, making it suitable for highway transportation, construction logistics, container hauling, and heavy-duty semi-trailer operations.
Equipped with a high-performance diesel engine, durable transmission system, and reinforced drive axles, the HOWO NX 6X4 Tractor Truck is engineered to provide strong pulling power and efficient performance under demanding working conditions. The optimized drivetrain helps maintain reliable power delivery, while the heavy-duty suspension system and reinforced frame contribute to vehicle stability and durability. Its spacious and ergonomically designed cabin offers a comfortable driving environment, with practical controls, supportive seating, and convenient interior features that help reduce driver fatigue during extended transportation journeys.
Designed for demanding cargo transportation.
3-axle, 4-axle and customized configurations.
Suitable for different road and transport conditions.
Dimensions and specifications can be adapted to customer requirements.

The HOWO NX cabin is designed to provide a comfortable driving environment, featuring ergonomic seating, practical dashboard controls, air conditioning, and an available sleeper configuration for long-distance transportation.

Equipped with a heavy-duty diesel engine, the HOWO NX delivers strong pulling power and dependable performance for demanding transport operations. Different engine power configurations are available to meet various hauling requirements.

The heavy-duty transmission system provides suitable gear ratios for loaded starts, highway driving, and challenging road conditions, helping deliver engine power efficiently during long-distance cargo transportation.

The 6×4 drivetrain features two driven rear axles to provide strong traction and stable power delivery. It is suitable for heavy-duty semi-trailer hauling on highways, construction routes, and demanding road surfaces.

The reinforced steel chassis provides structural support for heavy-duty hauling operations. Its robust frame construction is designed to withstand repeated loading stresses and demanding commercial transport conditions.

The heavy-duty fifth wheel coupling provides a secure connection between the tractor truck and semi-trailer, enabling efficient towing operations. Different coupling specifications can be selected to match trailer configurations and transportation requirements.
| Item | Specifications |
|---|---|
| Product Name | SINOTRUK HOWO NX 6X4 Tractor Truck |
| Brand | SINOTRUK HOWO |
| Model | ZZ4257V344JB1 |
| Drive Type | 6×4 |
| Horsepower | 380–440 HP (Depending on Configuration) |
| Engine | WEICHAI WP10 / WP12 Series |
| Engine Type | 6-Cylinder, Turbocharged Diesel Engine |
| Emission Standard | Euro II / Euro III / Euro IV / Euro V |
| Transmission | SINOTRUK HW19710 / HW19712 |
| Gearbox | Manual, 10 or 12 Forward Gears |
| Cabin | H77L / H78L Sleeper Cabin |
| Steering | Left-Hand Drive / Right-Hand Drive |
| Front Axle | 7–9.5 Tons |
| Rear Axle | 13–16 Tons × 2 |
| Suspension | Reinforced Leaf Spring Suspension |
| Chassis Frame | Heavy-Duty Double-Layer Steel Frame |
| Tire Size | 12.00R20 / 12R22.5 / 315/80R22.5 |
| Fuel Tank Capacity | 400–600 Liters |
| Overall Dimensions | Approx. 6,800 × 2,500 × 3,100 mm |
| Brake System | Dual-Circuit Air Brake |
| Electrical System | 24V |
| Fifth Wheel | 50# / 90# (Depending on Configuration) |
| Fuel Type | Diesel |
| Application | Container Transport, Tanker Hauling, Heavy Cargo Logistics |
| Color | Customized |
| Customization | Available According to Customer Requirements |
| Item | Specifications |
|---|---|
| Product Name | SINOTRUK HOWO NX 6X4 Tractor Truck |
| Brand | SINOTRUK HOWO |
| Model | ZZ4257V344JB1 |
| Drive Type | 6×4 |
| Horsepower | 380–440 HP (Depending on Configuration) |
| Engine | WEICHAI WP10 / WP12 Series |
| Engine Type | 6-Cylinder, Turbocharged Diesel Engine |
| Emission Standard | Euro II / Euro III / Euro IV / Euro V |
| Transmission | SINOTRUK HW19710 / HW19712 |
| Gearbox | Manual, 10 or 12 Forward Gears |
| Cabin | H77L / H78L Sleeper Cabin |
| Steering | Left-Hand Drive / Right-Hand Drive |
| Front Axle | 7–9.5 Tons |
| Rear Axle | 13–16 Tons × 2 |
| Suspension | Reinforced Leaf Spring Suspension |
| Chassis Frame | Heavy-Duty Double-Layer Steel Frame |
| Tire Size | 12.00R20 / 12R22.5 / 315/80R22.5 |
| Fuel Tank Capacity | 400–600 Liters |
| Overall Dimensions | Approx. 6,800 × 2,500 × 3,100 mm |
| Brake System | Dual-Circuit Air Brake |
| Electrical System | 24V |
| Fifth Wheel | 50# / 90# (Depending on Configuration) |
| Fuel Type | Diesel |
| Application | Container Transport, Tanker Hauling, Heavy Cargo Logistics |
| Color | Customized |
| Customization | Available According to Customer Requirements |
At Zhongrun, we value every customer relationship. Through factory visits and face-to-face communication, we better understand our customers’ needs and provide professional trailer solutions tailored to their transportation requirements. We look forward to building long-term partnerships with customers around the world.
Our product process follows strict quality control from raw material selection and component preparation to welding, assembly, painting, inspection, and final delivery, ensuring reliable quality and consistent performance for every semi-trailer.
