This is an interesting article published in China's Global Times with a definite CCP slant...
https://kuaibao.qq.com/s/20191229AZOUN200?refer=spider
Chinese tanks in Bangladesh need to be transformed by Ukraine? Actually both sides are helpless.
Global Times
2019-12-29 08:40
According to a report on the "Military Identification" website on December 26, 2019, the Ukrainian Defense Industry Group announced to the media that it had obtained a contract with the Bangladesh Army Armored Forces to improve a number of tank armored vehicles in active service in the country.
It is worth noting that these equipment not only include Soviet-made BTR-80 wheeled armored vehicles, but also MBT-2000, 69II, and 59G three main battle tanks exported to Bangladesh by China. The level of the Ukrainian tank and armored vehicle industry is far below that of China. Can it provide improved services for Chinese-made tanks?
This may sound unreasonable, but if you look into the reasons, you will find that both sides have deep helplessness.
Both 59G and 69IIG products were developed by China based on the improvement of the Soviet Union's T54A, and their technical level is not high. The 59G equipped in Bangladesh has undergone a round of improvements, using a 105mm rifled cannon and an image stabilization fire control system, but both have insufficient power. 69IIG's need for improvement of the power system is also very strong.
However, the T54A's power compartment is extremely compact, and no four-stroke diesel power system in production in China, the West, or Russia can be installed. Only the 6TD series two-stroke diesel engines produced by Ukraine are more compact, and it is possible to provide more powerful power for these two tanks without changing the body. The problems of large fuel consumption and poor heat dissipation can only be tolerated by Bangladesh.
And Ukraine's Kharkiv is the home of the T54A tank, and it has a deeper understanding than others. Both 59G and 69IIG products were developed by China based on the improvement of the Soviet Union's T54A, and their technical level is not high. The 59G equipped in Bangladesh has undergone a round of improvements, using a 105mm rifled cannon and an image stabilization fire control system, but both have insufficient power. 69IIG's need for improvement of the power system is also very strong.
MBT-2000 is a standard three-generation tank. Ukraine must not be able to transform it in terms of informatization, nor can it provide it with better artillery and ammunition. However, the MBT-2000's engine is exactly the Ukrainian two-stroke 6TD-2, with a power of 1,200 horsepower. Due to the serious decline in the quality of Ukrainian products, coupled with the development of an advanced 1,200-horsepower power pack for export by China North Industries Corporation, the production of MBT-2000 was stopped, and a new generation of VT4 tanks was concentrated on the export.
Well, users who have already purchased MBT-2000 can only seek help from Ukraine if they want to further improve their power performance. As it happens, Ukraine has developed a 1500 horsepower 6TD-3 based on the 6TD-2. Can basically replace 6TD-2 directly. For Bangladeshi users, this may be the only option.
As for the difference between Ukraine ’s own tank export capacity, it has been exposed in the Thai tank export project. Otherwise, the Thai military will not abandon the contract and switch to China's VT-4 tank.
In general, Ukraine has some ability to improve the power system of the armored vehicles of the former Soviet descent.