What is it?

jschmier

I took my 2018, 400BD to a dealer in Michigan to diagnose a problem with my Alde; the heat exchanger needed replacing.  When I picked up my unit, there was a part that neither I, the dealership, or Truma/Alde, (who did the repair), know what it is or where it goes.  Maybe from a 320 that the dealer mixed up?  Any thoughts?

Jilong

I wonder if that's a piece that's meant to be mounted under the bed in the storage area?