The raw water pump cover K 73118 is a precision-engineered closure component that seals the pump casing while allowing access for inspection and maintenance of the impeller and internal parts. Designed to maintain uniform pressure distribution and reliable sealing, this cover prevents water leakage and protects the pump interior from external contamination. Manufactured for durability and corrosion resistance, K 73118 supports easy servicing and contributes to the overall efficiency, safety, and long service life of the raw water pump system in ZV40/48 engines.