The button on the lock on the inside of the sliding door of my '88 Westy has
fallen off and gotten lost. It's the little knob you press down in order to
lock the sliding door from the inside. I need to replace it. I emailed Bus
Depot about it but they said I need to get a part number for them to order
it.

Does anyone have a part number for this, or provide a pointer to someplace I
can find it?

TIA.

Chris
Los Angeles
'88 Westy, "Rocinante"