HOWO A7 420HP 6X4 Tractor Truck
✅ Detailed Description
The HOWO A7 420HP 6X4 Tractor Truck stands as a powerful and reliable vehicle, specifically engineered for demanding long-haul logistics and heavy-duty freight transport. Manufactured by Sinotruk, a leader in the heavy truck industry, this model integrates the D12.42-30 inline-six diesel engine. This engine reliably delivers 420 horsepower and a strong 1820 Nm of torque. This power profile allows the truck to effortlessly tow up to 40 tons GCW.
The 6X4 axle configuration ensures the truck maintains superb traction and stability when under maximum load. Furthermore, the HW18710 10-speed manual transmission provides the driver with precise gear changes, effectively boosting fuel economy across diverse highway conditions.
Driver comfort is addressed by the high-roof sleeper cab. It offers generous space, ergonomic seating, a comfortable bunk bed, and manual air conditioning. These features enhance endurance during long hauls. The truck’s design features a robust chassis and a reinforced rear suspension. This makes the A7 a highly capable performer in container transport and heavy industrial supply logistics.
Operational efficiency improves thanks to the 400-liter aluminum alloy fuel tank. This tank supports longer trips and minimizes fuel stops. The HOWO A7’s Euro III emission standard is particularly beneficial for global export, as it provides a robust and reliable platform for markets in Africa, the Middle East, and Asia. It is a top choice for professional freight operators prioritizing strength, comfort, and proven reliability.










✅ Key Specifications
| Specification | Details |
|---|---|
| Model | ZZ4257V3247N1B |
| Drive Type | 6X4 |
| Engine | Sinotruk D12.42-30, 420HP, Euro III |
| Displacement | 11.596L, inline 6-cylinder, diesel |
| Max Torque | 1820Nm @ 1100–1500rpm |
| Transmission | HW18710, 10-speed manual |
| Wheelbase | 3225 + 1350 mm |
| Top Speed | 101 km/h |
| Fuel Tank | 400L, aluminum alloy |
| Gross Vehicle Weight (GVW) | 25,000 kg |
| Gross Combination Weight (GCW) | 40,000 kg |
| Rear Axle Ratio | 4.11 |
| Suspension | Leaf spring (4/12 front, 9/12 rear optional) |
| Cabin | High-roof sleeper cab, semi-row, 3 seats |
| Tires | 12.00R20, 10 units |
| Origin | Jinan, Shandong, China |




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