The most reasonably priced component used on the Nt400 Bros 1988 (j) Japan Nc25-100 E-17 is the Bolt,flange,6x20.
Parts such as the E-17: Wire,main Water H, Pipe Outlet Water, Bolt,flange,sh,6x16, Joint,water (f-r are included in the Nt400 Bros 1988 (j) Japan Nc25-100 E-17 parts fiche.
This E-17 diagram displays the required parts for the Nt400 Bros 1988 (j) Japan Nc25-100 E-17.