This switch controls the lowering function of the rear three-point linkage (TUZ) on the host tractor. It is mounted on the fender, placing the actuation point within easy reach of the operator for precise implement height adjustment. The switch completes the circuit that signals the hydraulic control valve to lower the linkage arms. A failing switch may cause intermittent or no response from the linkage when the operator activates the lowering function. As an original-manufacturer component, the switch body and internal contacts match the electrical connector and mounting hole pattern of the original assembly, so no wiring modification or bracket adaptation is needed during replacement.