The weld-on piece K 81166 is a durable structural component designed to provide a stable mounting surface for the guide element within the Sulzer/Adriadiesel/Jugoturbina/Zgoda ZV40/48 engine. Manufactured to withstand thermal expansion, vibration, and continuous operational loads, this weldable part ensures precise positioning and secure integration into the engine’s support framework. Its robust design enhances the rigidity of the guide assembly, prevents misalignment over long operating periods, and contributes to the engine’s overall mechanical reliability.
The pressure regulating valve, code P51507-03, maintains optimal oil pressure within the MAN L21/31 engine’s lubrication circuit, protecting critical parts from both insufficient lubrication and excessive pressure. By automatically adjusting flow based on engine demand, this valve ensures stable operating conditions and contributes to consistent temperature control. Its precision and reliability make it indispensable for safeguarding engine health, especially during load fluctuations and extended operation in demanding environments.
The lubricating oil pump, code P51501-25, serves as the heart of the MAN L21/31 engine’s lubrication system, delivering pressurized oil to all bearings, gears, and moving components. Engineered for durability and flow consistency, the pump ensures that friction is minimized and heat is efficiently dissipated throughout the engine. Its stable performance is essential for preventing component failure, reducing mechanical losses, and supporting long-term reliability, particularly in high-load marine propulsion and industrial power generation applications.
The lubricating oil filter, code P51502-16, is a key protective element in the MAN L21/31 engine’s lubrication system, ensuring that circulating oil remains free from contaminants such as metal particles, soot, and sludge. By maintaining oil cleanliness, the filter reduces wear on bearings, pistons, and other precision components, significantly extending engine life and improving operational reliability. Its high filtration efficiency is especially critical under heavy-duty marine and power plant conditions where engines operate continuously and demand consistent lubrication quality.
The visual flow control device K 84465 is an eight-position inspection element used in the ZV40/48 engine to allow operators to visually verify fluid movement, direction, and condition within the system. Designed for clarity, durability, and resistance to pressure and temperature fluctuations, this component enhances situational awareness during operation and maintenance. Its multi-position configuration enables precise monitoring of flow changes, making it easier to detect irregularities, contamination, or flow interruptions. By providing immediate visual feedback, K 84465 significantly improves reliability, safety, and diagnostic speed in complex engine environments.
The hinge K 81264 is a durable mechanical joint designed to allow controlled, smooth movement of support K 81260 while maintaining structural stability in the ZV40/48 engine. Engineered to tolerate repeated mechanical stress, vibration, and thermal expansion, the hinge provides flexibility where needed without compromising strength. Its high-quality design ensures precise alignment and reliable articulation, enabling easier maintenance access and reducing wear on adjacent components. As part of the support assembly, K 81264 plays a key role in maintaining functional mobility and operational efficiency.