The most expensive part in this assembly is the Master Power Assy.
Parts such as the Master Power: Valve Comp.,check, Nut,flange,8mm, Cap Comp (reservo, Seal Rod are included in the Civic 1993 (p) 2dr Ex (ka,kl) Master Power parts fiche.
On this parts fiche the Clamp D 15.5mm is the most specified component.