“Not all heavy tractor trucks are called SITRAK”, which has been the consensus of truck fans. As the leader of China’s heavy tractor-truck industry, Sinotruk must also be at the forefront of the world. And Sinotruk SITRAK-C7H heavy tractor truck is the most shining star model in CNTHC, which is widely praised and pursued by truck fans. Sinotruk SITRAK-C7H heavy tractor truck C7H is the high-end wind vane of Sinotruk and the benchmark of domestic high-end heavy tractor trucks. As a golden standard of Sinotruk, the C7H has hit the trend of automatic transmission in the early stage. It can be said that the C7H is excellent and extremely advanced, with grace and elegance.
Sinotruk SITRAK-C7H heavy tractor truck series is complex and has many models, which can meet great user needs. This paper selects a 540 hp 6X4 tractor as a reference.
There are many models of Sinotruk SITRAK-C7H heavy tractor trucks, but they all use simple and atmospheric central control devices, and the whole system is equipped with a large central control screen as standard. The model selected in this paper is also equipped with excellent benchmarking functions, such as a multi-function steering wheel, constant speed cruise, lane departure warning, electric rearview mirror adjustment, electric heating, etc., which are beautiful, simple, and elegant.
Sinotruk SITRAK-C7H Heavy Tractor Truck
Driving type 6×4 LHD
Luxury cabin, with Air conditioning and one bed,
large central control screen, multi-function steering wheel, constant speed cruise, lane departure warning, electric rearview mirror adjustment, electric heating
SINOTRUK SITRAK-C7H heavy tractor truck adopts the in-line six-cylinder engine developed by SINOTRUK, which can be used in both diesel and natural gas versions. This sample vehicle applies to the 540 hp diesel inline six-cylinder MC13 engine, which not only reflects the flagship power but also reflects the superior comfort created by large displacement and power, bringing the ultimate performance. This engine has strong horsepower and large torque can fully cooperate with the chassis, comprehensively cope with various complex working conditions, and has a good maintenance period, long overhaul mileage, and good after-sales service.
The engine has excellent intake and exhaust effects, a loud voice, powerful exhaust, good fuel economy, safety and environmental protection, high fuel saving, and good efficiency, which directly reaches the sixth generation of national emission standards.
The SINOTRUK SITRAK-C7H 540 6X4 model is equipped with the front two rear three full-steel leaf spring suspension as standard, providing extremely superior driving comfort, excellent cushioning, shock absorption capability, and excellent traction capability. The MCY13Q rear axle with a speed ratio of 2.85 is adopted at the rear axle, which greatly improves the ability to carry goods and provides a comfortable and excellent driving experience for a high-speed cruise.
SINOTRUK SITRAK-C7H Heavy Tractor Truck
Vehicle Main Dimensions
Overall dimensions (L x W x H)mm
Wheel track (front/rear) (mm)
Weight in KGS
Front axles loading capacity
Rear axles loading capacity
Max. driving speed（km/h）
4-stroke direct injection, 6-cylinder in-line with water cooling,
turbo-charging and inter-cooling
ZF16S2530TO, 16-speed forward, 2 reverse gears
Reinforced diaphragm clutch
ZF16S2530TO, power steering, hydraulic steering with power assistance from Germany
Fuel tank (L)
315/80R22.5 tubeless tire 11 pcs including one spare tire
Service brake: dual circuit compressed air anti-lock brake
Parking brake :(emergency brake): spring energy, compressed air operating on rear wheels
Auxiliary brake: engine exhaust brake
1. The performance parameters in the table are theoretical reference data under the condition of driving on a good road surface, the actual data varies from actual working conditions and drivers’ driving habits.
2. For sake of product improvement and technical promotion, the vehicle parameters are subject to change without prior notice.
The gearbox of the Sinotruk SITRAK-C7H 540 6X4 model can be equipped with a 16 or 12-gear ZF gearbox, 16 or 12-gear Sinotruk self-research manual or automatic transmission, etc. Compared with the traditional manual transmission tractor truck, it has good fuel economy and a high utilization rate. After being adjusted by Sinotruk, it matches the MC13 inline six-cylinder diesel engine developed by Sinotruk. Although the fuel consumption rate of the engine is higher than that of the traditional automatic transmission on the car, the engine has shown excellent mechanical transmission performance and excellent fuel utilization rate under heavy tractor-truck regulation.
The high-quality aluminum alloy wheel hub and aluminum alloy super-large fuel tank used by Sinotruk SITRAK-C7H heavy tractor truck can minimize the dead weight of the vehicle and improve transportation efficiency. In addition, it also uses truck accessories such as drying tanks, saddles, and tires supplied by world-famous partners such as Webco, Yoster, and Goodyear, ensuring high reliability and high playability.
Not only that, but on the chassis frame of the Sinotruk SITRAK-C7H heavy tractor truck, you can also see a very strong V-shaped thrust bar. Its function is to connect the frame and the axle, avoid displacement between the axle and the frame when the vehicle turns, and ensure the safety of the vehicle under heavy load and complex road conditions.
Sinotruk has been deeply involved in the domestic heavy tractor-truck market for many years. With its outstanding work and excellent research and development capabilities, SINOTRUK has developed an excellent and reliable heavy tractor truck like Sinotruk SITRAK-C7H, which can not only adapt to the domestic environmental situation but also go abroad, representing China’s high-end heavy truck to impact the international market, consolidating its strong position in the heavy truck field.