The YbOH molecule is one of the most sensitive systems for the electron electric dipole moment (eEDM) searches. Zeeman splittings of the eEDM sensitive levels have significant implications to control and suppress important systematic effects due to stray magnetic fields in experiments for eEDM searches. The electric-field-dependent g factors of the lowest rotational level of the first excited bending vibrational mode of YbOH174 are calculated. l-doublet levels with a small g-factor difference are found and main contributions to the difference are determined.