The sealing ring (code K 27419) for the starting valve in Sulzer ZV40/48 engines ensures a leak-proof seal within the engine's starting system. This component, produced by Adriadiesel, Jugoturbina, and Zgoda, is designed to withstand extreme pressure and temperature variations during the engine startup phase. A compromised sealing ring can lead to air or fuel leaks, reducing engine efficiency and causing starting difficulties. Regular inspections and timely replacements are necessary to prevent performance issues and ensure the reliability of large-scale marine and industrial diesel engines.