12 31 1 726 022 : Alternator regulator for BMW Z1

This alternator regulator is a new replacement part designed for the BMW Z1, the polymer-bodied roadster produced in limited numbers in the late 1980s. It ensures regulation of the voltage delivered by the alternator to protect the vehicle's electrical circuit and guarantee correct battery charging. As part of restoring or servicing a collectable BMW Z1, replacing this component restores electrical operation to original specification. An essential part for preserving the reliability of this rare model.