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ZF 6AP series bus automatic transmission parts 4181 354 001
ZF 6AP series bus automatic transmission parts 4181 354 001
ZF 6AP series bus automatic transmission parts 4181 354 001

High-density integrated cast aluminum blank, thin-wall reinforced rib structure, lightweight and high rigidity, anti-deformation under long-term frequent bus start-stop oil flow impact;
Integrally cast multi-group streamline diversion notches, directional guide lubricating oil circulation to avoid oil vortex and air suction foaming;
Uniformly distributed positioning fixing holes, completely matching original oil pan and main box inner cavity assembly position;
Height limit baffle design to block high-speed gear splashing oil, keep stable liquid level at oil filter suction port to prevent air intake and pressure drop;
Surface sandblasting anti-corrosion treatment, resistant to long-term erosion of 115℃ high-temperature ATF transmission oil inside gearbox housing;
Smooth fillet transition at oil flow channel edges, no burrs to avoid debris accumulation and oil circuit blockage;
Strict hydraulic circulation flow simulation test, long-hour continuous vibration fatigue test and -35℃~115℃ temperature cycle aging test before delivery, stable oil separation and flow guiding performance for all-day urban bus operation.


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.

* 8000 square meters of large warehouse.
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