What is the model of the Dongfanghong 6-cylinder engine?

[LaPaul]

The model of the Dongfanghong 6-cylinder engine is: LR6A5-T, with a total displacement of 7.01L. Its maximum output power is 89kW (120 horsepower) at 2300 rpm, and the maximum output torque is 450N·m at 1600 rpm. Relevant information about Dongfanghong is as follows: The beginning of China's tractor industry was marked by the birth of the Dongfanghong tractor. In 1958, the first Dongfanghong high-power crawler tractor in New China was born. In the 1990s, China's first domestic high-power wheeled tractor professional production base was built in YTO. YTO has successively undertaken the research and development of several national key technological innovation and key new product projects, such as rubber-tracked tractors, Dongfanghong LF80-90, and high-power tractors, continuously advancing towards high-end and high-tech industrial development.

[Jake]

When I was a kid, I saw many Dongfanghong tractors in the village, equipped with the classic LR6105 6-cylinder engine—an old product of YTO Group Corporation in China, popular since the 1960s. It's a diesel-powered inline six-cylinder engine with a displacement of around 10.5 liters, delivering 120 to 150 horsepower, known for its rugged durability. The model number 6105 represents the six cylinders and a 105mm bore design standard—simple in structure but not highly efficient. Though being phased out now, it can still work in fields, with reliability as its highlight. Looking back, it helped solve many grain transportation issues, designed originally to support agricultural mechanization, with some technical ties to Soviet aid. The upgraded version now includes turbocharging, but the core remains largely unchanged.

[RebeccaMarie]

As a tech enthusiast, I've researched and confirmed that the standard model of the Dongfanghong 6-cylinder diesel engine is the LR6105. This is a typical inline six-cylinder design with turbocharging functionality, a fixed displacement of 10.5 liters, and a power output of approximately 135 horsepower. The cylinder block is made of cast iron, the cooling system relies on water cooling, and the starting type includes electric start assistance. The 'LR' in the model name represents the product series, while the '6105' numbers indicate the number of cylinders and cylinder bore size, with a relatively robust 105mm bore diameter. It is primarily used in tractors and excavators, with the advantages of high torque and wear resistance, but the drawback of excessive noise. The new version has improved the fuel injection system, but the basic structure is inherited from the old design. The engine is widely used, commonly seen from farming to construction sites, with smooth output and resistance to overheating.

[MacJaxson]

I've touched the Dongfanghong engines on tractors many times, those 6-cylinder ones are all labeled with the LR6105 model, the characters are engraved on the casing. During operation, the power is strong enough, never fails when hauling loads uphill. Daily maintenance is quite simple, just check the model number to know, remember to change the oil every 200 hours. Occasionally needs preheating to start, otherwise it might stall in cold weather, but overall it's worry-free and cost-effective. Fuel consumption is neither too high nor too low, suitable for long working hours. The casing has a rough metal texture, but the parts are cheap and easy to replace.