The most reasonably priced component used on the Kx450ebf 2011 Europe Cylinder/piston(s) is the Circlip-piston Pin.
On this parts fiche the Circlip-piston Pin is the most specified component.
Parts such as the Cylinder/piston(s): Pin-piston, Pin,10.1x12x14, Cylinder-engine, Gasket,cylinder Base (nas) are included in the Kx450ebf 2011 Europe Cylinder/piston(s) parts fiche.