Master cylinder Brake Volvo Amazon 1-Circuit (B18)

This category gathers the parts for the single-circuit cylinder on the B18 cars. The group includes complete master cylinders, repair kits with seals, a brake lamp switch, plus screw, washers and clevis pin for mounting and the pedal rod. Plastilube and grease are used to lubricate the piston and boots during assembly so that the rubber does not run dry.

During a rebuild, common check points are the bore's surface finish, the piston clearance and the return spring – if the cylinder bore is scored or pitted, a seal kit alone is rarely enough.