The nut K 73025 is a robust fastening component used to secure shaft K 73023 within the cooling water pump assembly of the Sulzer ZV40/48 engine. Engineered to maintain axial positioning and clamping force under vibration and continuous mechanical load, this nut ensures stable retention of rotating components during operation. Manufactured from high-strength material with precise threading, it enables secure installation, reliable torque transmission, and long-term resistance to loosening. As a critical locking element, K 73025 plays an essential role in preserving shaft alignment, mechanical integrity, and dependable pump performance.

The O-ring K 73037 is a high-performance sealing element installed in bearing housing K 73011 of the ZV40/48 cooling water pump. Designed to withstand constant exposure to water, vibration, and thermal cycling, it provides an effective barrier against leakage and ingress of contaminants into the bearing area. Its precise dimensions and durable elastomer material ensure consistent sealing performance, protecting bearings from premature wear and corrosion. By safeguarding the bearing housing, the O-ring K 73037 contributes directly to smooth pump operation, extended service intervals, and overall system reliability.

The O-ring K 73036 is a precision sealing component designed for the cover K 73018 in the Sulzer/Adriadiesel/Jugoturbina/Zgoda ZV40/48 engine’s cooling water pump assembly. Its function is to provide a reliable, leak-free seal between the cover and the pump housing, preventing water loss and protecting internal components from external contamination. Manufactured from high-quality elastomer resistant to water, temperature fluctuations, and mechanical compression, this O-ring maintains sealing integrity under continuous operation. Despite its small size, K 73036 plays a crucial role in ensuring pressure stability, operational safety, and long-term reliability of the cooling water pump system.

The counter ring K 73026 is a precision-machined sealing and wear component used in the cooling water pump of the Sulzer ZV40/48 engine. Positioned opposite the rotating sealing elements, it provides a stable, wear-resistant contact surface that ensures reliable sealing and controlled friction during pump operation. Engineered to withstand continuous exposure to water, pressure fluctuations, and thermal cycling, this counter ring helps prevent leakage, protects adjacent components, and contributes to the long-term efficiency, reliability, and durability of the cooling water pump system.

The shaft K 73023 is a critical drive component of the cooling water pump in the ZV40/48 engine, responsible for transmitting rotational power from the drive mechanism to the pump’s internal elements. Designed to operate reliably under constant load, vibration, and thermal influence, this shaft ensures precise alignment and efficient torque transfer throughout operation. Manufactured from high-strength, corrosion-resistant material, K 73023 minimizes wear on bearings and seals, supports stable pump performance, and plays a key role in maintaining effective engine cooling in demanding marine and industrial environments.

The bush K 73012 is a precision bearing sleeve designed for installation in bearing housing K 73011 within the Sulzer/Adriadiesel/Jugoturbina/Zgoda ZV40/48 engine’s cooling water pump assembly. Its primary function is to provide a low-friction, wear-resistant support surface for the rotating shaft, ensuring correct alignment and smooth operation under continuous load. Manufactured from materials optimized for lubrication retention and resistance to corrosion and mechanical stress, this bush reduces shaft wear, dampens vibration, and significantly extends the service life of the bearing system, contributing to reliable long-term pump performance.

The bush K 73112 is a precision bearing sleeve designed for installation in bearing housing K 73111 within the ZV40/48 raw water pump assembly. Its function is to provide a low-friction, wear-resistant support surface for the rotating shaft, ensuring correct alignment and smooth operation. Manufactured from materials optimized for lubrication retention and resistance to corrosion and mechanical stress, this bush reduces shaft wear and extends bearing service life. As a small but essential component, K 73112 contributes significantly to vibration control, operational stability, and the overall durability of the pump assembly.

The gear wheel K 73124 is a robust power-transmission component used in the drive mechanism of the ZV40/48 raw water pump. Engineered for precise meshing and efficient torque transfer, this gear wheel ensures synchronized operation between the drive shaft and the pump assembly. Its hardened tooth profile and dimensional accuracy reduce noise, vibration, and mechanical losses while enhancing durability under continuous operation. By maintaining consistent pump speed and load distribution, K 73124 contributes directly to dependable cooling water circulation and long-term reliability of the pump system.

The shaft K 73123 is a precision-machined drive component of the raw water pump in the Sulzer/Adriadiesel/Jugoturbina/Zgoda ZV40/48 engine, responsible for transmitting rotational power from the drive system to the pump impeller. Designed to operate under continuous load, vibration, and exposure to seawater-side conditions, the shaft ensures accurate alignment and smooth torque transfer. Manufactured from high-strength, corrosion-resistant material, K 73123 minimizes wear on bearings and seals, supports stable pump performance, and plays a key role in maintaining reliable engine cooling under demanding marine and industrial operating conditions.

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.