This button set replaces the original lift-control switch assembly mounted in the armrest of the host tractor. It provides the electrical interface for raising and lowering the rear linkage, translating operator input into control signals sent to the hydraulic valve block. A worn or intermittent button set can cause uncommanded lift movement or failure to hold position, which affects implement depth control. The assembly is manufactured by AGCO to match the original housing geometry and connector layout, so it seats into the armrest bezel without modification and maintains the correct switch travel and tactile feedback.