The Governor (ec5000dv(e)) assembly is constructed from several parts from which the Diaphragm Assy is the most expensive.
Some items from this specific schematic: Spring, Tension(73a), Rod, Link, Ybs67-8 Washer, Spring, Lever.
The lowest price component in this Governor (ec5000dv(e)) parts-list fiche is the Bolt, Flange(1ln).