Genuine OEM Volkswagen Main Fuse Socket, part number 5WA201055K. This main fuse socket is designed to house and protect the primary fuses for the vehicle's electrical system. It is identified as part 1 in the diagram. The approximate dimensions are 1.3 meters in length, 0.85 meters in width, and 0.85 meters in height. Using a genuine OEM main fuse socket ensures correct fitment for the fuses and reliable electrical connections, preventing potential system failures.