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the 2018 Dongfeng Tianlong VL heavy-duty truck, model DFH4250A9, with a 520hp 6×4 drive configuration and meeting China’s Stage V emission standards, stands out in the market due to its outstanding power performance, carefully designed lightweight structure, advanced transmission technology, comprehensive safety measures, and competitive pricing. Whether for daily operations or special missions, it can meet user needs and deliver significant value returns.
This is a 2018 Dongfeng Tianlong VL heavy-duty truck, model DFH4250A9, with a 520 horsepower engine and a 6×4 drive configuration. Manufactured by Dongfeng Commercial Vehicle Co., Ltd., this 2018 model Tianlong VL 520hp 6×4 tractor is specifically designed for long-distance transportation and heavy cargo, featuring several selling points that appeal to customers. Below is an overview of the key features of this model:
Powerful Performance: The vehicle is equipped with the Dongfeng Cummins ISZ520 51 engine, which has a generous displacement of 13 liters and is designed entirely according to American Cummins engineering standards, delivering robust power output. It can achieve a maximum horsepower of 520hp (382kW) and a peak torque of 2500Nm, capable of meeting various complex road conditions and heavy load requirements. The critical components of the ISZ520 engine have undergone more than ten million cycles of fatigue testing, ensuring reliability and durability.
Efficient Transmission System: Fitted with a Fast 12JSDX240TA transmission known for its high reliability and durability, suitable for prolonged periods of intense use. The rear axle ratio is set at 3.64, ensuring stability and fuel efficiency during highway driving.
Comfortable Driving Experience: Featuring a high-roof cab design with a four-point air suspension system for excellent shock absorption and riding comfort. Additionally, the cab includes amenities such as an upper berth, sunroof, and rear spoiler, enhancing the overall driving experience.
Outstanding Load Capacity: With a curb weight of 9.215 tons, a gross vehicle weight of up to 25 tons, and a total towing capacity of 39.59 tons, it is well-suited for applications like long-haul logistics, coal transportation, and sand and gravel material transport.
Safety Configuration: Standard safety features include engine braking, maintenance-free batteries, aluminum wheels from Alcoa, and longitudinal tread pattern tires, ensuring stability and safety under various operating conditions.
Environmental Performance: Meeting China’s Stage V emission standards, the vehicle employs SCR technology to reduce pollutant emissions, aligning with modern environmental requirements and minimizing environmental impact.
Economic Efficiency: Utilizing the Cummins HOLSET high-efficiency turbocharger and four-valve intake system, the combustion process is more complete, leading to higher fuel economy. Moreover, advanced fuel-saving technologies such as electronic fans and EP switches are applied, further reducing fuel consumption.
With a reasonable body size and a fuel tank capacity of 750 liters, it is suited for long-distance transportation, reducing refueling frequency and improving operational efficiency.
In summary, the 2018 Dongfeng Tianlong VL heavy-duty truck, model DFH4250A9, with a 520hp 6×4 drive configuration and meeting China’s Stage V emission standards, stands out in the market due to its outstanding power performance, carefully designed lightweight structure, advanced transmission technology, comprehensive safety measures, and competitive pricing. Whether for daily operations or special missions, it can meet user needs and deliver significant value returns.
| Model: | DFH4250A9 |
| Drive Wheel: | 6X4 |
| Wheelbase: | 3300+1350mm |
| Vehicle Length: | 6.96m*2.52m*3.77m(LWH) |
| Front Track: | 2040mm |
| Rear Track: | 1840/1840mm |
| Curb Weight: | 9.2 Ton |
| Gross Vehicle Weight Rating(GVWR): | 25 Ton |
| Gross Combination Weight Rating (GCWR): | 40 Ton |
| Maximum Speed: | 110km/h |
| Minimum Turning Radius: | 17.1m |
| Segment: | Logistics Freight Matching、Coal Transportation、Sand and Gravel Transportation、Express Delivery and Freight Services、Bulk Material Transportation、Cold Chain Transportation |
| Manufacturing Location: | China |
| Weight Class: | Heavy Duty Truck |
| Engine Model: | Dongfeng Cummins ISZ520 51 |
| Number of Cylinders: | Inline-6 |
| Fuel Type: | Diesel |
| Displacement: | 13L |
| Emission Standards: | Euro 5 |
| Horsepower (hp): | 520 hp |
| Maximum Output Power: | 382kW |
| Maximum Torque: | 2460N·m(1100-1300rpm) |
| Rated Speed: | 1900rpm |
| Engine Technology: | Cummins HOLSET high-efficiency supercharger, electronic fan, EP switch, etc. |
| Cab: | Raised Roof,Upper sleeper, sunroofFour-point Air Suspension,Driver’s Seat with Air Cushion Suspension,Dash Camera,Air Conditioning,Start-Stop System |
| Gearbox Model: | Fast 12JSDX240TA |
| Transmission Type: | Manual |
| Forward Gears: | 12 |
| Reverse Gears: | 2 |
| Fuel Tank Material: | Aluminum |
| Fuel Tank Capacity: | 750L |
| Front Axle Load Capacity: | 7000kg |
| Rear Axle Load Capacity: | 18000kg*2 |
| Rear Axle Ratio: | 3.64 |
| Number of Spring Leaves: | 2/4 |
| Clutch: | Φ430 |
| Suspension Type: | Leaf Spring |
| Number of Tires: | 10 |
| Tire Specifications: | 12R22.5 |
| Other Specifications: | ABS |








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Yes, absolutely. As a manufacturer, we have a professional engineering team. We can customize the dimensions, loading capacity (e.g., 60 tons, 80 tons), axle brand (FUWA/BPW), suspension type, and paint color to suit your specific road conditions and transport needs.
We use high-strength Q355 or T700 steel for the main beam. This ensures the trailer is lightweight yet strong enough to withstand heavy loads and rough road conditions in Africa and Central Asia.
Standard models usually take 15-20 working days after receiving the deposit. For urgent orders, we can even shorten it to 10 days. We will keep you updated with photos and videos during production.
Our standard term is T/T (30% deposit, 70% balance before shipping). For large orders, L/C (Letter of Credit) is also negotiable.
Yes, we provide a 24-month warranty for the main beam. For spare parts (like brake pads, lights), we supply original parts at factory cost for the lifetime of the trailer.
At Kales Vehicle, we understand that shipping costs are a major part of your investment. That’s why we offer multiple transport options tailored to your destination and budget.
Whether you choose Container Shipping for protection, Ro-Ro (Roll-on/Roll-off) for speed, or Bulk Cargo for cost savings, we ensure every trailer is handled with care. All vehicles undergo rigorous wax spraying and are covered with waterproof tarpaulins before shipment to prevent seawater corrosion during transit. We calculate the optimal stacking method (e.g., 3 units stacked together) to help you minimize freight costs.






