In high‑altitude heavy‑duty transportation, dump trucks not only suffer from power loss caused by thin air, but also face compound challenges from unpaved roads, continuous slopes, and frequent loading and unloading. Vehicle power, reliability, and environmental adaptability directly determine operational efficiency and uptime. To meet these demanding requirements, domestic truck manufacturers are continuously optimizing product design and core configurations, striving to balance performance, durability, and economic efficiency under extreme conditions.
On January 24, 2026, Yuchai Group’s 2026 Global Partner Conference, themed “123, GO!”, was grandly held in Yulin, Guangxi. Among the complete vehicles on display, one Chenglong HK dump truck stood out prominently. Powered by a 600‑horsepower Yuchai engine, specially optimized for extreme heavy‑duty cycles, and equipped with a premium flat‑floor cab, it has been hailed as a “dream truck” for high‑altitude heavy‑haul applications. In this article, Tijia takes you through a detailed, multi‑dimensional review of this model.
As always, let’s start with the exterior. As a premium heavy truck in the Chenglong lineup, the HK series boasts extremely high recognition. Its front face features a prominent V‑shaped geometric design, creating strong visual impact and full three‑dimensionality. Amid the current trend of uniform styling in commercial vehicles, the Chenglong HK’s distinctive design language makes it truly stand out.
A closer look at the front grille reveals multiple sharp cut planes and layered three‑dimensional lines, forming a “dragon armor” effect that conveys a tough, powerful character. This design not only matches the HK’s flagship positioning but also fully emphasizes the muscularity and strength expected of a dump truck.
As a premium model, the HK also delivers high‑end lighting performance. Both high and low beams use lens‑equipped LED light sources, providing significantly improved illumination with low power consumption and long service life. Independent fog lamps below the main headlights ensure excellent visibility in rain, snow, and fog. The sharp, energetic headlight design adds the perfect finishing touch to the vehicle’s appearance.
As a dump truck operating on construction sites and rough off‑road terrain, the Chenglong HK has been specially optimized for ground clearance and protection. Its ride height is raised compared with logistics versions, and it features a three‑section metal bumper. This enhances front‑end robustness, improving resistance to scratches and impacts. Meanwhile, the three‑section design allows quick, low‑cost replacement of individual segments if damaged.
A chassis skid plate is integrated under the bumper, providing additional protection for key components such as the engine oil pan, effectively enhancing vehicle reliability in rough road conditions.
The combination of Yuchai and Chenglong has long enjoyed a strong reputation in the truck industry. This Chenglong HK dump truck is powered by Yuchai’s heavy‑duty diesel engine: the YCK13. With a 13‑liter displacement, it delivers a maximum output of 600 horsepower and a peak torque of 2500 N·m, easily handling heavy‑load starts and steep climbs. The engine also features excellent high‑altitude adaptability, maintaining stable power output in thin air. In addition, the YCK13 achieves outstanding fuel economy, consuming approximately 3 liters less per 100 km than comparable models, perfectly balancing strong performance and energy savings.
Matched to the engine is a Fast 13JSDX260T transmission. It consists of a 7‑speed main gearbox and a 2‑speed auxiliary gearbox, cleverly combined to deliver 13 forward gears. This provides ample ratio coverage while avoiding the complexity of traditional 16‑speed units. The first gear ratio reaches 15.68, delivering exceptional starting and climbing torque; the top gear ratio is 0.78, allowing efficient high‑speed cruising and fully unleashing the high‑power engine. The setup covers full operating conditions from low‑speed crawling to highway travel.
To withstand heavy‑duty, high‑intensity operation, the Chenglong HK dump truck features a fully strengthened chassis. The frame uses a one‑piece formed main beam for exceptional load capacity and fatigue resistance. Combined with a new‑tech balance suspension, double U‑bolt mounting, and dual 25‑ton wheel‑reduction drive axles, the vehicle achieves industry‑leading levels of load capacity, traction, and reliability.
For high‑altitude and dusty environments, this Chenglon HK is equipped with a bath-type air cleaner. It offers low maintenance costs and excellent filtration of fine dust, supplying clean intake air to the engine consistently. This preserves stable power output, reduces engine wear from particle contamination, and extends service life.
In terms of the cab, the Chenglong HK dump truck lives up to its premium positioning. Although interior photos were not available due to display vehicle restrictions, specifications confirm a 4‑point mechanically suspended cab with a flat‑floor layout and air‑suspension seats, focused on driver comfort. The extended cab also provides a spacious sleeping area, suitable for rest during long‑distance assignments.
Conclusion
Overall, this Chenglong HK dump truck features a series of targeted design and configuration upgrades tailored to the real demands of high‑altitude heavy‑duty operation. From the robust powertrain combining the high‑horsepower Yuchai engine and specialized transmission, to the high‑ground-clearance chassis, three‑section bumper, and bath‑type air filter strengthened for rough conditions, plus a well‑equipped cab balancing comfort and functionality, the truck achieves an excellent balance of power, reliability, environmental adaptability, and driving experience.
It represents Chenglong’s technological accumulation in the heavy dump truck segment. Describing it as a “high‑altitude dump dream truck” is truly well deserved.
原创文章，作者：ctinsa，如若转载，请注明出处：https://www.ctinsa.com/truew/8256
