The Left Handle Switch (gsx550esd/ese/efe) assembly is constructed from several parts from which the Switch Assy,ha is the most expensive.
eighteen components are listed in the schematic for this Gsx550ef 1984 (e) (e01 E02 E04 E16 E17 E18 21 22 24 25 26 34 39) Left Handle Switch (gsx550esd/ese/efe) .