Cam belt part no
 

Hi, anyone know the part no for the cam belt on by 1998 (1994cc)Impreza Non turbo Wagon . Reg R284 PHY 1st registered January 1998 ?
I need a new belt and have a knowegable/trustworthy guy who will fit it, I have found a web site that sells imported Subaru parts at a good discount, but they only sell by part No