This search probably only applies to Canadian Syncros. The Webasto BBW46
heater was an option in Canada on Syncro models.

I am looking for some parts to make mine complete. Specifically, I need
the Combustion Air Blower. This is the device attached directly to the
combustion chamber at the end of the heater. It is shaped something like
a mushroom and has a single electrical lead with two wire connectors.

Alternatively, does anyone know of a junkyard (probably in Canada) that
has a Syncro Vanagon/Truck/Westfalia?

Thanks for any leads,
Larry