The control room casing plate, designated by code K 16201, serves as a structural and protective component in the ZV40/48 engine’s control housing system. Designed to shield and support sensitive control elements, this precision-engineered plate ensures mechanical integrity and environmental isolation from contaminants such as dust, moisture, or oil mist. Built from corrosion-resistant materials, the plate also aids in maintaining the correct alignment and rigidity of the casing. It is a key part of the engine’s instrumentation reliability and long-term operational stability.

The tubular sealing element with code K 16227 is engineered to provide secure and resilient sealing for components K 16220 and K 16222 within the ZV40/48 engine system. This tubular design ensures an even distribution of sealing pressure, making it ideal for dynamic assemblies where vibration and thermal expansion are factors. Made from durable and oil-resistant material, it supports the long-term reliability of the sealed components by maintaining airtight and fluid-tight conditions. Its use is essential for both operational safety and reduced maintenance cycles.

The O-ring with code K 21406 is a vital sealing element in the ZV40/48 diesel engine, specifically designed for the cylinder liner interface. Its primary function is to create a pressure-tight seal between the liner and the engine block, preventing the escape of combustion gases and the ingress of coolant into the combustion chamber. Manufactured from high-temperature and chemically resistant elastomer, this O-ring withstands extreme engine conditions while maintaining flexibility and integrity. It plays a crucial role in ensuring proper engine compression and preventing efficiency losses due to internal leaks.

The pipe identified by code 01.93105-2069.C is a robust fluid transport element in the MAN L21/31 engine, commonly employed in oil, cooling water, or air systems. Engineered to withstand pressure, temperature, and vibration, it ensures consistent and uninterrupted flow between engine components. Its correct routing and durability are key to maintaining thermal balance and fluid integrity across the engine’s operating cycles.

The guide pipe with code 11.01132-0023.A serves as an alignment and routing component within the MAN L21/31 engine, often used to position rods, wires, or fluids through designated channels. Its sturdy cylindrical design maintains directional accuracy and prevents chafing or vibration damage, especially in dynamic environments. This part plays a subtle yet critical role in supporting internal coordination and mechanical reliability.

The straight male stud coupling, code EN8AB12.1, is a vital connector used within the MAN L21/31 engine’s fluid systems. Designed for high-pressure applications, it provides a reliable, leak-proof connection between pipes or hoses, often used in fuel, oil, or hydraulic lines. Its durable metal construction and precision threading ensure long service life and secure performance, even under the demanding conditions of marine propulsion or industrial operation.

The nut coded K 27045 is specifically designed to fasten the stud K 27038 within the ZV40/48 diesel engine assembly. Engineered for strength and resistance to vibration, this component ensures that structural connections remain tight under continuous thermal and mechanical loads. Its precision threading provides a secure fit, helping to preserve alignment and load distribution across the connected parts. Whether part of a cylinder head, manifold, or housing, this nut is essential for the long-term durability and operational safety of the engine.

The O-ring with code number K 27055 is a vital sealing element used in conjunction with ring K 27010 in the ZV40/48 engine. Its main function is to prevent fluid or air leakage at the joint interface, particularly where high-pressure fuel or oil systems operate. Crafted from elastomeric materials resistant to heat, oil, and pressure variations, the O-ring ensures a tight and secure seal even under dynamic engine conditions. Its role is crucial for maintaining system integrity and avoiding performance losses due to leaks or pressure drops.

The insert bush coded K 27107 plays a critical role in the precise and stable mounting of the fuel injection valve in the ZV40/48 diesel engine. It acts as an intermediary sleeve, ensuring proper alignment and seating of the injection valve within the cylinder head. Designed to absorb mechanical stress and prevent wear between metallic surfaces, this component contributes to long-term sealing integrity and consistent fuel delivery. Made from heat- and pressure-resistant materials, it supports the injector’s function under high thermal loads and guarantees reliable engine performance across long maintenance intervals.

Round steel bars, code EN43AE0090, serve as foundational raw materials in the production and repair of various MAN L21/31 engine parts. Known for their high tensile strength, uniform diameter, and machinability, these bars are transformed into essential engine components such as pins, shafts, and mounting elements. Their metallurgical reliability ensures they meet the demanding structural and thermal requirements of diesel engines operating under continuous load.