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12AS2330 12AS2540 12AS1930
ZF
12AS2330 12AS2540 12AS1930
Brand: ZF (AS-Tronic 12-speed AMT series)
Product Type: Automated Manual Transmission Synchronizer Assembly
Compatible Gearbox: ZF 12AS1930 (12AS1930TD, 12AS1930TO) AS-Tronic 12-speed heavy-duty AMT
Applicable Vehicles: DAF, MAN, Renault heavy-duty long-haul tractor trucks fitted with ZF 12AS1930 gearboxes
Material: High-strength alloy steel hub/sleeve + high-performance friction synchronizer rings, precision machined splines and teeth
Product Weight: varies by specific gear position synchronizer (reference approx 3~6kg)
Function: Speed synchronization during automated gear shifts, eliminate speed difference, reduce shift impact, prevent gear damage, maintain reliable AMT shifting performance
Category: ZF AS-Tronic 12-Speed Heavy Truck AMT Transmission Core Synchronizer Spare Parts
Material & Advantages
High-strength alloy steel structure + high friction coefficient synchro rings, durable under repeated heavy-load automated shifting cycles
Precision spline and tooth processing, perfect matching with original mainshaft gears and shift actuators
Standard OEM dimensions for direct fit replacement in gearbox overhaul
Reduce shift grinding noise, hesitation and abnormal vibration, improve AMT shift accuracy and comfort
Adapt to long-distance highway, mountain heavy-load and variable temperature European truck operating conditions
Application
Replace when experiencing high/low range shift grinding noise, stiff shifting, jump-out-of-gear, burnt synchro cones
Inspect matching gears, shift forks, bearings and oil seals during assembly
Use specified heavy-duty gearbox oil, check oil level and oil cleanliness
Test full range shifting after installation to confirm no abnormal noise or shifting failure
Avoid frequent aggressive high/low range shifting under full load
Gearboxes assembly include brand ZF, Eaton, FAST, Allison, DONGFENG, DC, Benz, volvo, HOWO, WLY etc. Gearboxes parts includegear, synchronizer, PTO, housing, bearings, shaft, top cover, sensors, wireness, repair kits... etc.
Our products have been exported to more than 50 countries and regions such as Korea, Chile, Russia, Kazakhstan, USA, Ecuador, Turkey, Iran, Africa, Latin America, etc., and have been unanimously recognized by customers.
In the future, we will be committed to creating higher-end quality and more intimate service. And a more comfortable customer experience to build Yongliwei company into an auto parts supplier with excellent corporate culture, scientific development concept and continuous innovation ability.
Shiyan Yongliwei Industry and Trading Co., Ltd. is a modern enterprise integrating design, development, production and sales of gearbox assembly and gearbox parts.
Our company was founded in Hubei province, China, and has been specialized the truck gearboxes in Chinese offline market for 21 years .Our parts are the leader of gearboxes area in the China now.
Our company was set up in the largest truck parts production base in the world –Shiyan city, Hubei, China, to meet the demand for products in the Asia and South American markets, a professional international trade sales team was born in Hubei in 2021.
Shiyan Yongliwei is focusing on creating high quality, high technology and high standard gearboxes and its parts.
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