How many models does the Fast 12-speed transmission have?
4 Answers
Fast 12-speed transmission has 6 models: 160, 160TA, 180, 180TA, 200, and 200TA. Fast, short for Shaanxi Fast Auto Drive Group Company Limited, was restructured from Shaanxi Automobile Gear Factory and is a large-scale specialized production base mainly manufacturing heavy-duty vehicle transmissions, transfer cases, power take-offs, and various automotive gears and their forged castings. The company's leading products include: dual countershaft series transmissions produced with American technology and independently developed multi-series transmissions; series power take-offs and transfer cases matching the above products; OEM gears and other export components, as well as various domestic and imported automotive gear forgings and auto parts.
As a veteran truck driver with over a decade of experience behind the wheel of heavy-duty trucks, the Fast Gear 12-speed transmission is quite common in the trucking community. I've driven many models and remember there are six main types: the 12JSD160T, 180T, 200T, along with the high-strength versions like the 220T and 240T, plus the overdrive models 180TA and 200TA. For regular hauling on light-load routes, I usually use the 160T—it's more convenient. When it comes to overweight loads, the 200T is my go-to for its strong and stable power. The main difference between these models lies in their torque capacities: the 160T is suitable for loads under 15 tons, while the 240T can handle over 30 tons. Maintenance-wise, don’t overlook regular gear oil changes and clutch inspections, or you might experience gear-shifting issues. If you hear any unusual noises while driving, get it checked immediately—small problems can turn into major repairs. The driving feel varies noticeably between models: the 160T is more agile, while the 240T is tougher to handle but more durable.
As a car enthusiast, I'm quite interested in the Fast 12-speed transmission. It has at least five mainstream models, such as the 160T, 180T, and 200T series, plus the overdrive versions 180TA and 200TA, all widely used in heavy-duty trucks. From discussions with fellow drivers, I've learned that each model matches different engine power outputs: the 160T is more entry-level with lower torque, while the 200T and above are like performance versions suitable for long-haul heavy loads. When modifying, it's crucial to choose the right model to avoid gear-shifting issues. The overdrive versions claim to save 10%-15% fuel, but drivers need time to adapt to their operation. Additionally, I've heard that some newer models have improved noise reduction designs for smoother driving. For maintenance, using high-quality lubricants is recommended to extend transmission life. Overall, while there are many models, choosing the right one can significantly enhance truck performance.
Having worked in the repair shop for over a decade, I've encountered many Fast 12-speed transmissions. There are roughly six mainstream models, including basic versions like the 12JSD160T, 180T, and 200T, as well as overdrive versions with TA suffixes such as 180TA and 200TA. The most common daily issues are synchronizer wear or oil circuit blockages, leading to difficult gear shifting; different models share similar problem points, like the frequently used 160T being prone to oil leaks, or the 240T experiencing high cooling system pressure under heavy loads. When troubleshooting, I usually check the fuses and clutch cables first, and recommend not exceeding a 10,000-kilometer oil change interval. Choosing accessories depends on vehicle load—light trucks can use the 160T, while heavy trucks are better suited for the more reliable 200T. For new repairs, I suggest opting for original parts to avoid accelerated wear from substandard components. These transmissions typically last around 500,000 kilometers with proper maintenance, leading to fewer issues.
