What thermostat to order?

[jbelly]

Hi all,

My son is over in Australia and travelling around in what I assume is a Mk4 Transit. Afraid I don't know much about transits, apologies. He has a coolant leak and says it is coming from the thermostat housing. I want to send him a new/second hand housing but can't work out what part to look for. Details are:
VIN : WFOLXXBDVLWS28930
Petrol 2.0 EFI DOHC
1998 build from Vin information
Part number on one half of the thermostat (but looks like it's the other side of the housing I need) PF-GF43 N8U4A

I have attached the pictures he has sent me.
Any help would be very much appreciated.
Thanks in advance.