Ouch.

Sorry to hear this!
Did you have plain water in there? If so, I know I am stating the obvious after the fact, but it might be better to use some windshield washer fluid rather than plain water ...
Anyway, I'd look at the Service Manual (link is in my sig) for replacement details and information. You can get parts from the other link in my sig for
www.everythinginfiniti.com - if it does not show on their web site, please call them, since they are very helpful to us NICO members.
Z