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 hand tools set, code P52004-02, includes high-quality manual tools designed for everyday mechanical work on the MAN L21/31 engine. Comprising items such as spanners, wrenches, screwdrivers, and auxiliary tools, this set supports safe and precise handling of fasteners and components during maintenance and repair. Built for durability and ergonomic use in demanding environments, these hand tools are indispensable for efficient onboard servicing and workshop operations, ensuring consistent workmanship and reduced wear on engine parts.
The additional tools set, code P52002-10, complements the standard maintenance equipment for the MAN L21/31 engine by providing specialized tools for advanced service tasks, overhauls, and precise adjustments. These tools are intended for less frequent but critical maintenance operations that require higher accuracy or access to specific engine components. By enabling professional-level servicing in accordance with manufacturer guidelines, this set enhances maintenance flexibility, shortens downtime, and supports long-term engine reliability.
The standard tools for normal maintenance, code P52000-24, form a comprehensive toolkit specifically selected for routine servicing of the MAN L21/31 engine. This set includes all essential tools required for regular inspections, adjustments, and basic maintenance tasks, enabling safe and efficient work directly on site. Designed to match MAN’s technical specifications, these tools ensure correct handling of engine components, reduce the risk of improper servicing, and support reliable day-to-day operation in marine and power generation applications.
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 flexible hose with code P51912-01 is an essential connection component in the MAN L21/31 engine, used for the safe transport of fluids or air between engine systems. Engineered to absorb vibration, movement, and thermal expansion, this hose prevents stress transmission to rigid pipes and fittings. Its reinforced construction ensures resistance to pressure, temperature extremes, and harsh operating environments, contributing to improved system reliability, easier installation, and reduced risk of leaks in marine propulsion and stationary power applications.
The expansion bellow, code P51914-01, serves as a flexible element within the MAN L21/31 engine systems, allowing controlled movement while maintaining tightness in pipelines or exhaust connections. Designed to withstand high temperatures, pressure variations, and continuous vibration, the bellow effectively compensates for thermal growth and alignment deviations. By minimizing mechanical stress on surrounding components, the expansion bellow enhances system durability, reduces maintenance requirements, and ensures stable performance under high-load marine and industrial operating conditions.
The expansion joint with code P51913-01 is a critical component in the MAN L21/31 engine’s piping and exhaust systems, designed to compensate for thermal expansion and mechanical movement during operation. By absorbing axial, lateral, and angular displacements, the expansion joint protects rigid pipes and connected equipment from excessive stress, fatigue, and cracking caused by temperature fluctuations and vibration. Its robust, flexible construction ensures long-term reliability, reduces structural loads, and supports safe and efficient engine operation in demanding marine and power generation environments.