The oval flange, code 170901, is a precision-engineered connection component used in the MAN L21/31 engine to establish durable and pressure-resistant joints between piping systems, hoses, and mechanical interfaces. Its oval geometry allows efficient installation in compact engine spaces while ensuring balanced load distribution and secure sealing performance. Produced from robust, corrosion-resistant materials, the flange is designed to tolerate vibration, thermal expansion, and demanding operating conditions typical of marine propulsion and industrial power applications. By providing reliable and stable system connections, the oval flange supports safe fluid transfer, minimizes leakage risks, and contributes to the overall operational reliability and longevity of the engine systems.

The gasket, code 300100, is an essential sealing component in the MAN L21/31 engine, designed to create secure and leak-tight joints between mating surfaces exposed to pressure, temperature fluctuations, and aggressive operating media. By compensating for minor surface irregularities, the gasket ensures reliable sealing of oil, coolant, fuel, or gas systems, preventing leakage and maintaining system integrity during continuous engine operation. Manufactured from carefully selected heat- and chemical-resistant sealing materials, it delivers long service life and dependable performance even in severe marine and industrial environments. Its role in preserving operational efficiency and reducing maintenance demands makes the gasket a critical element for safe and reliable engine performance.

The disc, code 100100, is a versatile precision component used within various mechanical and fluid-handling systems of the MAN L21/31 engine. Depending on its application, the disc may serve as a sealing element, support surface, flow-control component, or structural spacer within rotating or stationary assemblies. Engineered for dimensional accuracy and operational durability, it is manufactured from high-strength and wear-resistant materials capable of withstanding pressure, vibration, and thermal stress under demanding marine and industrial conditions. Its reliable function contributes to stable mechanical performance, controlled system operation, and the long-term reliability of critical engine assemblies.

The compensator K 66142 is a flexible mechanical component designed for the turbocharger system of the Sulzer ZV40/48 engine, intended to absorb vibration, thermal expansion, and mechanical movement within connected piping and air flow assemblies. Its primary function is to reduce stress transmission between turbocharger components and adjacent structures, helping protect the system from fatigue, misalignment, and thermal deformation during operation. Engineered for continuous exposure to elevated temperatures, pressure fluctuations, and dynamic operating conditions, the compensator is manufactured from heat-resistant and corrosion-resistant materials suitable for heavy-duty diesel engine applications. Its flexible construction supports stable airflow continuity while accommodating movement caused by operational loads and thermal cycling. By reducing mechanical stress and improving system flexibility, the K 66142 compensator contributes to enhanced turbocharger reliability, reduced maintenance requirements, and extended service life of the engine air charging system.

The support K 66140 is a structural mounting component designed for charge air cooler K 66101 in the Sulzer ZV40/48 engine. Its main function is to provide stable mechanical support and secure positioning of the charge air cooler within the engine air charging system. Engineered to withstand vibration, thermal expansion, pressure-induced forces, and operational stress, the support is manufactured from durable, high-strength materials capable of operating reliably in harsh marine and industrial environments. Precision-machined mounting surfaces ensure proper alignment and load distribution throughout the cooler assembly. By maintaining structural stability and minimizing mechanical movement, the support contributes to efficient airflow management, reliable cooling performance, and long-term durability of the charge air cooling system. The K 66140 support therefore plays an important role in maintaining stable engine operating conditions and overall system reliability.

The piston and cylinder assembly K 55050 is a highly precise fuel metering component designed for the fuel injection pump system of the Sulzer ZV40/48 engine. Its primary function is to generate and regulate the high fuel pressure required for accurate fuel injection into the engine cylinders. Manufactured with extremely tight dimensional tolerances and finely finished contact surfaces, the piston and cylinder operate together to ensure efficient sealing, precise fuel delivery, and stable injection timing. Engineered to withstand continuous high-pressure operation, fuel exposure, vibration, and thermal loading, the assembly is produced from wear-resistant, high-strength materials suitable for demanding diesel engine environments. Proper interaction between the piston and cylinder is essential for maintaining combustion efficiency, fuel economy, and emission control. By supporting accurate fuel metering and reliable injection performance, the K 55050 assembly plays a critical role in overall engine efficiency and operational reliability.

The protecting cap, code 100100, is a compact but essential protective component used in the MAN L21/31 engine to shield exposed fittings, threaded interfaces, and sensitive connection points from contamination and environmental exposure. By preventing the ingress of dirt, moisture, salt particles, and other harmful substances, it helps preserve the integrity and operational reliability of critical engine components. Manufactured from durable and corrosion-resistant materials, the protecting cap provides dependable performance under harsh marine and industrial operating conditions. Its role in maintaining cleanliness and safeguarding vulnerable interfaces contributes to safer maintenance procedures, reduced component deterioration, and extended service life of the engine.

The assembly spray nozzles, code 200100, represent a precisely engineered set of fluid distribution components used in the MAN L21/31 engine for lubrication, cooling, or cleaning applications. Designed to deliver controlled spray patterns and accurate fluid atomization, these nozzles ensure that oil, fuel, or water is distributed efficiently to critical operational areas. Manufactured to strict dimensional tolerances and optimized for stable flow performance, the assembly provides reliable operation under varying pressures, temperatures, and engine loads. Constructed from wear- and corrosion-resistant materials, the spray nozzle assembly contributes to improved thermal management, reduced friction and wear, and enhanced overall efficiency and durability of the engine systems.

The cover with splash tube, code 300100, is a multifunctional component within the MAN L21/31 engine designed to combine protective enclosure and controlled fluid distribution in one integrated assembly. By shielding internal engine elements from contamination while directing lubricating oil or other operating media through the integrated splash tube, it supports efficient lubrication and cooling of critical moving parts. Engineered for precise fitment and reliable sealing, the component is manufactured from durable, corrosion-resistant materials capable of withstanding demanding thermal and mechanical operating conditions. Its dual role in protection and fluid guidance contributes significantly to reduced component wear, improved operational reliability, and long-term engine performance in marine and industrial applications.

The air inlet casing K 66106 is a precision-engineered airflow management component designed for charge air cooler K 66101 in the Sulzer ZV40/48 engine. Its primary role is to guide incoming compressed air into the charge air cooler while ensuring balanced airflow distribution and minimized flow resistance. Designed to operate under varying pressure conditions, vibration, and thermal stress, the casing is manufactured from robust, corrosion-resistant materials suitable for continuous heavy-duty operation. Its carefully developed geometry promotes smooth airflow transition and supports efficient cooling performance within the air charging system. Precision-fit mounting and sealing surfaces ensure stable integration with the cooler assembly and adjacent intake components. By optimizing airflow management and supporting effective cooling of compressed intake air, the K 66106 air inlet casing contributes to enhanced combustion efficiency, stable engine operation, and long-term durability of the turbocharging system.