F1UZ-9B263-B Fuel Tank Reservoir Selector Valve Assembly 1989-1997 Fo-rd F150 F250 F350 E150 E250 E350 Replace F1UZ9B263B 911-000. F1UZ9B263B. Function: The fuel tank selector valve adjusts and allows fuel to move from the front and rear fuel tanks through a selector switch.
