The bearing housing marked with code K 73111 is a critical structural component within the raw water pump assembly of the Sulzer ZV40/48 diesel engine. This housing securely encases the pump bearings, maintaining their alignment and protecting them from contaminants such as water and debris. Its robust construction ensures that the bearings operate smoothly under heavy load and variable speed conditions. By minimizing vibration and allowing consistent rotation of the pump shaft, this component plays a vital role in ensuring the reliability of the engine’s cooling system.