Can you explain it in more, water jackets are cast in the engine block and cylinder head. Its not a separate part.
The separate parts for a cooling system are
1 radiator - rade atorr
2 thermostat - thermashat
3 thermostat cap/elbow - flange/flunch etc
4 water pump - waturrbaady
5 waterpump housing (hozing) not possible on your civic
6 transfer pipe (waturbaady ka paep)
7 radiator fans - fen
8 welch plug (tikli/sikka) your civic has a total to 3
9 heater bypass hoses (heater paep)
10 overflow tank (botall)
11 Radiator cap (dhakkan)
Which one are you talking about. Infact upload a picture.