Wire Harness
We support the evolution of automobiles with our advanced wiring technology.
As the automotive world moves toward multi-functionality and electrification, ASTI uses sophisticated wiring techniques to ensure reliable connections for complex electronic controls, helping advance next-generation mobility. The wire harness serves as the "nerves and blood vessels of the car," fulfilling the crucial role of accurately transmitting power and signals. By reliably executing this mission, ASTI supports advanced technologies such as autonomous driving and connected cars.
Furthermore, by synchronizing our wire harness design and production preparation with the customer's design process, we achieve both detailed production responsiveness and high quality. With over 30 years of proven track record and reliable technical expertise, we support the future mobility society.
Furthermore, by synchronizing our wire harness design and production preparation with the customer's design process, we achieve both detailed production responsiveness and high quality. With over 30 years of proven track record and reliable technical expertise, we support the future mobility society.

Wire Harness Production Supported by People and Technology
Wire harness production is a process that requires a significant amount of sensitive manual work. At ASTI, we are dedicated to improving equipment and promoting automation to achieve higher productivity and stable quality. Furthermore, we are optimizing our global production system by handling large-volume production at our overseas factories while utilizing our domestic facilities to manage small-lot, high-mix orders.

Wire Harness Products
●Wire Harness for Four-Wheelers


●Wire Harness for Two-Wheelers


●Wire Harnesses for Marine Outboards


Development of Components
To meet the evolving needs of wire harnesses, we deliver end-to-end solutions from component development to manufacturing. Our total solution, including unit development, achieves a balance of high reliability and production efficiency.


Junction Box

Fuse and Relay Box

Busbar

Harness Protector

Door Grommet

Terminal Resistor
