The Washer,10.5x15x1.5 is the most widely applied product in the KZ650B1 1977 USA CANADA / MPH KPH FRONT MASTER CYLINDER (KZ650-B1) ( six times ).
The component with the lowest price in the FRONT MASTER CYLINDER (KZ650-B1) schematic is the Nut,6mm.
Some items from this specific schematic: Spring Assy-return, Holder-master Cyl, Piston Assy-mstr Cyl, Hose, M/c Brake.