Precision for Motion

      Trusted Global Supplier of Premium Quality Automotive Valve Train Components

About Us

SMW: Precision for Motion

Sino Motorworks Co., Ltd. is a dedicated supplier specialized in automotive engine valve train components in the global aftermarket. Since our inception, we have been driven by a clear commitment: to deliver leading-quality engine parts to customers worldwide with competitive costs.

Our expertise focuses on the export of a comprehensive range of valve train components, including valve lifters, rocker arms, rocker shafts, camshafts, valve guides, valve seats, valve stem oil seals, valve locks, valve rotators and more.

Built on over two decades of industry experience, we proudly serve leading global aftermarket brands, providing reliable and cost-effective solutions backed by consistent quality and technical know-how.

At SMW, these three values define us: Solutions, Maximization, Worldwide. We deliver integrated procurement solutions to our valued customers, drive maximization of your profit, and explore mutual business collaborations worldwide.

25 +

Years of Expertise

3000 +

Product Numbers

24 / 7

Customer Support

Our Product Lines


Valve Lifters

Rocker Arms

Cam Shafts

Valve Locks

Valve Stem Oil Seals

Rocker Shafts

Valve Rotators
Valve Spring Retainers

Valve Guides

Valve Seats

R&D Capabilities for Your Customized Needs

  • Beyond automotive valve train parts, we offer customized product development to meet your specific requirements.

  • Whether for industrial, marine, or agricultural engines, or for heavy-duty applications, our team ensures reliable quality and performance in every component we develop for you.

Why SMW?

Trusted Legacy

With 20+ years in the aftermarket engine parts industry, we bring proven expertise and a strong reputation trusted by global clients.

Assured Quality

Every part is manufactured with the highest quality standards  to guarantee durability, precision, and performance on the road.

Competitive & Efficient

Through strong partnerships and efficient coordination, we guarantee value-driven solutions and on-time support across global markets.

Other Advantages

            More advantages, all designed to give you the edge in a competitive market.

Comprehensive Product Lines

Proven Expertise

Flexible Customization

Technical Support


Global Reach

                                                               Together,  we build sustainable value in every cooperation.

Let's Talk Engine Parts!

Got a question or need a quote? We're here to help you find the perfect answer.

Get In Touch

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Contact

+86 28 6941 8382

500 Tianfu Ave., Gaoxin District, Chengdu, Sichuan, China 610041

                                                                                                                                               © Copyright 2025 Sino Motorworks Co., Ltd. - All Rights Reserved