My 90 Multivan has a big glop of sealer around a hose connection.  What I need is help identifying what this thing is so that I can replace it.  

I'm doing this from memory so bear with me.  As you look into the engine bay, look straight center to the clutch housing.  There is a coolant hose that comes across the top of the housing & then down to the left against the firewall and connects to what looks like a pump. 

Anyway,  mine has a regular hose which connects to a white plastic nozzle which is then attached to the pump (or whatever it is).  It's got a bunch of goo around the base of the nozzle which I don't dare even touch before I have a replacement in hand.  

Does this white plastic thingy detach and if so can I order it?  Is it part of the whole pump which must be replaced?

Thanks for your help.
JOHN

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