These wire harnesses (Sumitomo Wiring Systems) electrically connect the electronic component and electrical devices installed in automobiles, and play the role of relaying mutually transmitted information and electric power. These important parts can be compared to the nerves and blood vessels in a human being, and they serve as the foundation of the car and its equipment.

These connectors (Sumitomo Wiring Systems) are the parts that connect harnesses to each other and to electrical components. They are available in many types and variations depending on their purpose, function, shape, and number of pins, etc., and it is also possible to meet specific needs, such as reduced size, lower insertion force, prevention of incomplete insertion, and easier assembly, etc.