On this parts fiche the Gasket (nas) is the most specified component.
The sub assemblies and components that make up this 39 Rear Master Cylinder include this Rr. Master Cylinder Assy., the most expensive part.
thirty-three components are shown in this Mtn1000 Mt-10 2017 B678 Europe 1sb67-300e1 39 Rear Master Cylinder exploded diagram.