WTB MULTI-PURPOSE BOX, PN: 46 54 2 307 620. The multi-purpose box is part of the System Case (panniers). The multi-purpose box is the handles and latching mechanism of the system case; it secures the case to the cycle and latches the case lid closed. I would consider purchasing a reasonably priced case – fully functional or damaged; either way I need a functioning latch mechanism - “multi-purpose box”. There are multiple years and models that would work. I would like to hear from you if you know of a replacement system case, pannier with a functional MULTI-PURPOSE BOX, PN: 46 54 2 307 620. Thank you for your time.