This schematic depicts all components used in the Ss620sport 2003 Usa (supersport 620s) 9151-1621a 027 Front Brake partslist.
A sample from the products for the 027 Front Brake include: Breather Valve, Left Front Brake Caliper, Window, Oil Level Check, Dust Plug.
With six applications this Copper Gasket 11.9x8.2x2 is the most specified part.