Parts such as the Oil Pump: Bolt (583 Oil Drain), Gasket (3y1), Bolt,socket, Gasket(3fd) are included in the Tt250r Tt250rc 2000 (y) Usa California Oil Pump parts fiche.
With four applications this Gasket (5r6) is the most specified part.
This Oil Pump Assy is the most expensive of the items that make up this Oil Pump assembly.