Company Profile
     Taizhou Yongzheng Auto Parts Co., Ltd (YZS) was founded in 1997, which is specialized in manufacturing and R&D all kinds of sway bars, track bar, torsion bar,control arm, stabilizer links.,etc. As an IATF16949:2016 certified manufacturer, it has a complete system of R&D, production, sales, service and also has a strong technical and management team. Presently, there are 110 employees, including 75 production line staff, 15 technician and 5 salesmen. As a leading company in this field, YZS equipped with full set production lines. 6 professional production lines support us with the capacity of 100,000 pieces sway bars each month. 4 dedicated tube bending machines, 4 efficient heat treatment equipment made the products in very stable quality. And in order to achieve the high performance requirements, all the products are made of high quality spring steels, such as 60Si2MnA, 50Cr3 and so on. We work with aftermarket, OEM and performance market over 20 years. We can customize and develop any new item based on drawing or sample, all moulds are made by ourselves. We have our own testing center, our testing equipment including fatigue test, salt spray test machine., etc. All tests and inspections are made from raw material to finished products. Each product is verified by special fixtures during production process. YZS sincerely welcome all customers to visit us and develop a long-term stable cooperation. We do believe, we will be your most trusted partner.


              90% cars are installed with sway bar.


              60% car owners will choose high-quality sway bar.


              40% cars are with the risk of sway bar fracturing in driving.


              10% cars are taking the risks of slipping, overturning and casualties.

why choose us

Internationalized Standard Factory & Full Sets Production Lines

YZS moved to the new site in April 2019 with new equipment invested, the production capacity will expanded to a new stage.

Accurate Engagement in Target Market

Based on 20 years professional experience, we are familiar with not only the traditional OEM customers, but also the emerging performance car market. According to different customer requirements and demands (domestic or abroad), we can serve them with our most proper and accurate plan and satisfy their market needs.

High Standard Quality Control System

YZS equipped with the most advanced production lines and the best testing laboratory. We are rigorous on quality control.Raw material incoming checking, high precision fixtures and modules using, and process inspection are our key control methods.

Cooperated with Well-known Brands

YZS has cooperated with many well-known enterprises in after-market and performance car field and sold its products to more than 40 countries.

Professional Core Operation Team

Core operation team was established in 2005. Since then we reformed our system and introduced the advanced management to the company. After years hard-working, now we have build a team with clear hierarchy, experienced, skillful, stable and ambitious team.

Small Orders, Customized and Fast Production

Small orders, customized and fast production are the tendency of our industry. In order to match it, we timely revised our MOQ and imported ERP system to support our production management

Our team

Always work on integrating sources, no delay allowed                            
Purchasing engineers organize the supply chain on optimum level 
Make regular market searches to find better sources


Provide customers with cost-effective, high quality products
Work on labor-saving solution, production process innovation
Lead time is optimized to be the earliest time

Innovation is our most core value
We have the ability to develop new products by state-of-the-art tools, technology, customer
feedback and actual market situation, brain storm
All technical questions are replied on time to customers in 24h
All moulds are CNC shaped
Weekly process review
3% of annual turnover was invested for R&D yearly        
Lead time for new product: 45 days

Strictly follow IATF 16949--—PPAP (Level 3)
All raw materials’ quality reports are received and tested at our own labs in factory
Semi products sources are inspected by our engineers
Products firstly are tested for quality at factory, then last checks are made before each shipment
Quick action against unqualified goods or customers complaints and corrective action taken
All parts are verified by special fixtures and 100%inspected before shipment
Our service commitment


Sample confirmation: YZS can supply sample for confirmation. By it, customers can make sure if the product is correct and also have direct impression on our quality.
Set safety stock for hot sales products. It will greatly shorten the lead time and satisfy customer’s expectation.


Put Q&A column for answering general questions
Standardized the answers to all kinds of questions. Make sure customers only replied in one unified answer from different staff.


Weekly update production status and share with customers. Timely inform customers once his orders are delivered
Timely follow-up the sales status and feedback in customer local market. Generally we collect the information in one month after customers receiving the goods.
Sending product and its packaging pictures for your confirmation.
New products will inform you at regular intervals.
24 hours online service
our service cases
 A well-known domestic car maker planed to present a hybrid in Shanghai Expo in 2010. However, they were difficult to find a qualified supplier due to the low quantity and high requirement. Finally they found YZS, who established a dedicated team and worked overtime to overcome various difficulties. Eventually, the product was successfully submitted to customer and perfectly shown in Shanghai Expo.
A global famous performance car brand holder visit China and tried to find their foundry in 2011. The material they need is unique and the quantity is low. Moreover, the requirements in precision and performance are high. They contacted many factories but failed. Finally they came to us. YZS kept very close communication with this customer. After 2-year’s hard work, YZS supplied them with many plans and solutions and finally gained their recognition. Now, YZS has become their exclusive sway bar supplier in China.
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Bingang Industrial Zone, Shamen, Yuhuan, Zhejiang 317607
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