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1333 333 001
ZF
1333 333 001

High-strength 20CrMnTi alloy steel integral forging, vacuum carburizing quenching & tempering, high surface hardness with excellent impact toughness and wear resistance;
Inner multi-tooth spline precision broaching, tight fit with main shaft without radial runout under heavy torque transmission;
Outer conical friction surface precision grinding, uniform friction contact to stabilize high-low gear synchronization and eliminate shift impact noise;
Integrated outer shift dog teeth precision milling, perfect fit with sliding sleeve for stable axial pushing without deflection;
Optimized tooth root fillet transition to disperse frequent range shift impact stress and prevent tooth root cracking;
Standard OEM overall dimension, spline tooth profile and cone angle consistent with 1333333001, direct plug-and-play replacement without cutting or grinding modification;
Whole piece anti-rust passivation treatment, resist long-term erosion of high-temperature gear oil inside gearbox;
Strict wear resistance and impact fatigue test before delivery, reliable performance under mine, mountain and plateau full-load transportation conditions.


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.
* To provide you with convenient, fast and low-cost e-commerce one-stop service.
