The HOWO Nx 6x4 tractor is equipped with a MAN engine, a 12 speed gearbox, and an airbag bridge, and has the following advantages:
Strong power: MAN engines provide efficient power output, ensuring excellent performance of vehicles in high-speed driving and heavy load situations, suitable for long-distance transportation and heavy load tasks.
Precise handling: The 12 speed gearbox provides more gear options, allowing the driver to accurately adjust the speed in different road conditions, improving handling and fuel economy.
Comfortable and stable: The airbag suspension system can effectively cushion road vibrations, improve driving comfort, and enhance the stability and passability of the vehicle in complex road conditions.
Strong durability: The structural design of HOWO N6 emphasizes durability and reliability, making it suitable for long-term, high-intensity work, reducing maintenance frequency, and extending service life.
Fuel saving effect: Efficient power system and reasonable gearbox matching provide superior fuel economy, which helps to reduce operating costs.
The outstanding performance of this tractor in terms of power, handling, comfort, and environmental protection makes it an ideal choice for the heavy-duty transportation and logistics industry.

ZZ4257V344JB1 Configuration Parameter List
| Brand: HOWO | Strain: NX | Substrain: NX |
| Vehicle category: Medium and heavy trucks | Vehicle use: Tractor | Drive type: 6×4 |
| Total mass (t):25 | Overall mass (kg):9000 | Wheelbase (mm):3225 |
| Vehicle length (mm):6850 | Vehicle width (mm):2550 | Vehicle height (mm):3100 |
| Truck model: ZZ4257V344JB1 | ||
| Engine: WP12.430E201 engine | Engine power (Ps):430 | Emission level: Euro II |
| Cab: Haworth H77L cab | Transmission: HW19712 Transmission | |
| Frame: Double layer frame (8+5/300) | Front axle: VGD71 self-aligning arm front axle | Drive axle: MCY13JGS self-aligning arm double rear axle |
| Drive axle speed ratio: 4.11 | Direction: China | Brake control system: ABS (4S/4M) |
| Bumper: High bumper (metal) | Fuel tank/gas cylinder: 600L | |
| Tyres: 315/80R22.5 tyres (mixed pattern/18PR) | ||


The Hohan NX400 Tractor Truck is designed to deliver exceptional performance, reliability, and safety across a range of transport tasks, making it an ideal choice for demanding transport operations.