With a quantity of two pieces, the Bolt,flange,6x22 is the most used part in the THERMOSTAT diagram.
Parts such as the Thermostat: Cover,thermostat, Thermostat Assy., O-ring,47.5x2, Thermo Unit Assy are included in the Cbr900rr Fireblade 1996 (t) France Thermostat parts fiche.
The Thermostat assembly is constructed from several parts from which the Thermo Unit Assy is the most expensive.