The Sulzer ZV40/48 diesel engine, renowned for its robust performance in maritime and industrial settings, incorporates precision-engineered components like the retaining ring for casing, identified by code K 74155. This retaining ring, specifically designed to secure the casing with code K 74102, ensures structural integrity and alignment under demanding operational conditions. By maintaining a secure fit, it minimizes vibrations and mechanical stress on the engine's assembly, enhancing durability and operational reliability. Regular inspection and timely replacement of the retaining ring are critical to sustaining optimal engine performance and preventing potential wear or misalignment issues in high-stress environments.