Prius Coolant Thermos

Can someone please tell me the Toyota part numbers for the following parts.

Coolant Thermos?

Thermos coolant pump?

Thermos three way valve?

I am having the devil of a job getting this info in the UK.

I need help from a friendly Canadian prius owner please.

Also can anyone suggest a good dealer in CA who may ship the above parts to the UK.
Or would someone do this for me for a fee?

Thanks

Peter