On this parts fiche the Dowel,pin,14x20 is the most specified component.
The component with the lowest price in the MT CLUTCH CASE schematic is the Dowel,pin,14x20.
Parts such as the Mt Clutch Case: Case Comp,clutch, Dowel,pin,14x20, Oil Seal 35x56x8, Magnet Comp, Mission are included in the Civic 2003 (3) 2dr Dx (ka) Mt Clutch Case parts fiche.