The most reasonably priced component used on the Vs1400glp 1987 (h) (e02 E04 E15 E16 E17 E18 E21 E22 E25 E34 E39) Front Master Cylinder (model H/j) is the Screw,reservoir Cap.
The Front Master Cylinder (model H/j) assembly is constructed from several parts from which the Cylinder Assembly,front Master is the most expensive.
Some items from this specific schematic: Cylinder Assy,fr Master, Cylinder Assembly,front Master, Cap, Diaphragm.