On this parts fiche the Pin, Pad is the most specified component.
The most reasonably priced component used on the Dt50r 2007 13c1 Poland 1f13c-300f1 Front Brake Caliper is the Washer,thrust 2.
This Front Brake Caliper diagram displays the required parts for the Dt50r 2007 13c1 Poland 1f13c-300f1 Front Brake Caliper.