The main wiring harness for Citroën H/HY/HZ models, manufactured between 1947 and 1964, is a critical electrical component that connects all the primary circuits in the vehicle. This harness ensures efficient electricity flow from the battery to various components such as lights, dashboard panels, and engine parts. It is specifically designed to meet the original specifications of early Citroën models, ensuring seamless integration and reliability. This wiring harness is vital for the restoration and maintenance of classic Citroëns, maintaining the vehicle's safety and functionality.