This schematic depicts all components used in the Kx250-ybf Kx250f 2011 Usa Oil Pump partslist.
Parts such as the Oil Pump: Element-oil Filter, Roller,2.5x11.8, Rotor-pump,scavenge, Bolt are included in the Kx250-ybf Kx250f 2011 Usa Oil Pump parts fiche.
With two applications this Roller,2.5x11.8 is the most specified part.