The application discloses an apparatus, system and method for determining a position of a part. Disclosed herein is an apparatus for determining a position of a first part relative to a second part. The first part is movable relative to the second part. The apparatus comprises a magnetic position indicator and a magnetic field sensor. The magnetic position indicator is non-movably fixed to the first part and comprises a plurality of magnetic field sources positioned along a length of the magnetic position indicator. Each magnetic field source of the plurality of magnetic field sources generates a magnetic field having a unique magnetic signature. The magnetic field sensor is non-movably fixed to the second part and configured to detect the unique magnetic signatures of the magnetic fieldsgenerated by the plurality of magnetic field sources of the magnetic position indicator.