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