The Nut,flange,6mm is the cheapest item from this partsfiche.
The Fuel Pump assembly is constructed from several parts from which the Unit Assy,fuel Pu is the most expensive.
Parts such as the Fuel Pump: Unit Assy Fuel Pu, Unit Assy Fuel, Hose Comp,fuel Fe, Nut,flange,6mm are included in the Cb1000ra 2009 (9) England / Abs Mph Fuel Pump parts fiche.
