OEM & Aftermarket
Partner for Global Supply
With internationally accepted standards, we supply engine valves and tappets to OEMs and aftermarket economically in the global market with reliability and highest quality.
Why Choose Us
Since 2015, we have been supporting OEM programs through product validation, series production and long-term supply, building proven manufacturing experience through real-world projects.
Our products serve multiple well-known brands and are distributed across global markets, earning strong recognition for consistent quality and reliable performance.
For branded aftermarket programs, we provide stable supply and consistent quality, supporting partners in building long-term product confidence and market reputation.
Through a global distributor network, the TOPU brand continues to expand into local markets, creating sustainable growth together with our partners.
We offer flexible and intelligent packaging solutions that balance protection, efficiency and brand presentation to meet diverse market and channel requirements.
From core components to integrated solutions, we provide one-stop sourcing support to streamline processes, improve coordination and reduce overall supply chain complexity.
CUSTOMIZED SOLUTIONS
PARTS & BEYOND
National High-TechEnterprise
For OEM partners, reliability is built over time.
Our engine valves and valve tappets are developed not for short-term supply, but for long production cycles and lasting engine platforms. Through stable materials, controlled processes, and repeatable quality verification, we help our partners maintain consistency from the first batch to the millionth — without changing what already works.
This long-term mindset shapes how we work — from process control and documentation to production planning and technical support. It allows OEM customers to focus on their engines, while we quietly ensure every component continues to perform, year after year.
Tailored Product Development
We provide customized product development tailored to your unique needs, ensuring every product perfectly fits its application.
Smart Packaging Solutions
Using innovative packaging designs, we enhance product safety and transport efficiency while showcasing professionalism and sustainability.
360° Technical Support
From selection guidance to installation and debugging, we provide full technical support to help customers solve problems efficiently.
Extended Product Portfolio
Our extensive product portfolio covers various applications, offering customers more choices to meet diverse market and performance needs.
CUSTOM DESIGN &
PACKING
Customized design drives future innovation. We continuously innovate to meet the rapidly changing needs of the market. With top-tier technical expertise and sharp industry insight, our R&D team provides customers with high-quality customized designs and improvement solutions. Whether it involves performance enhancement, structural optimization, or the application of new materials, we are committed to leading the future of the industry.
In the era of digitalization, customer trust is our most valuable asset. We are dedicated to safeguarding customer information through rigorous confidentiality measures, ensuring the security and reliability of every cooperation and giving our customers complete peace of mind.
ONE-STOP PROCUREMENT SERVICE
To meet the diverse needs of our customers, we have integrated a wide network of OEM supplier resources to provide one-stop procurement and product matching services for core engine components.
Let's Get In Touch
Contact us to learn more about our OEM and aftermarket solutions. We are ready to help you achieve efficiency and quality for your engine component needs.