Identification of a part
 

Good day Mazda Enthusiast Glad that I could be a part of this forum,I an seeking help in identifying a name of a part for my mazda 1993 626 (cronos) four cylinder 1991 cc,the part is located on the cylinder head,and it is maybe called the "coolant transfer pipe" however i am not locating it anywhere,can someone please tell me the exact name and possible the part number thanks.Subcontrolover.