The conical element, code P51903-02, is a precision-engineered component used in the MAN L21/31 engine for controlled flow guidance, sealing, or mechanical alignment, depending on its application within the system. Its tapered geometry ensures accurate centering and secure seating between mating parts, helping to distribute loads evenly and prevent leakage or misalignment. Manufactured from high-quality materials to withstand pressure, temperature variations, and vibration, the conical element contributes to system stability, reliable operation, and long service life in demanding marine and industrial environments.