Parts such as the Bop-6 Carburetor Components For Air/con: Valve Aircon Sole, Diaph Assy, Tube 3.5x370, Pin,cotter,1.2mm are included in the Civic 3d 1200 1980 Hmt Bop-6 Carburetor Components For Air/con parts fiche.
Of all the components used in this assembly the Diaph Assy is the most expensive.