peugeot 306 - single electric cooling fan - paul-s

I have a V reg Peugeot 306 LX and have been told i need a new cooling fan motor, however being unable to strip it myself i am not sure what sort i will need. I have narrowed it down to one in a plastic surround which i think is either an ecia or gate manufacturer. It has been to the garage and there is no make or manufacturer on it. Is there any way to distinguish which make it is? Thanks in advance!