Discovered the source of a minor leak, coolant leaking from the thermostat (im assuming the mechanic meant thermostat housing)

Can someone provide me the part number for the housing for the V8?
- i assume this includes the thermostat inside of it?
- is it cross compatible with an audi/vw part?

 

update: sounds like the part is cross compatible with the Audi S7 thermostat housing