A component which prevents a leak at the Fuel Level Sending Unit. Device that seals the tank around the Fuel Pump. Fuel Pump and Strainer Set. Fuel Pump O-Ring. Part cannot be reused/reinstalled. AND Level Unit. and Strainer Set. Gasket. Tank Sending Unit Seal. Level indicator o -. Lock o -. Included with: Fuel Pump, Fuel Pump assembly, Fuel tank, Level indicator.