Clutch slave cylinder sealing ring for piston with 185mm diameter) Suitable for Citroen DS with

carburettor engine. Fitted until year of construction 03/1971. Dimensions: 18.5 x 23.35 x 2.7. Brief overview: DS carburettors up to 03/1971 = 18.5mm piston (O-ring only). DS carburettors from 03/1971 > 10/1972 = 18.5mm piston (O-ring + Teflon ring). DS carburettor from 10/1972 = piston 24.0mm (O-ring + Teflon ring + spring).