The cylindrical screws with code EN61T612 are essential fastening elements used throughout the MAN L21/31 engine to secure components under high mechanical loads and vibration. Featuring a cylindrical head design that allows precise torque application, these screws ensure reliable clamping force and accurate alignment of engine parts. Manufactured from high-strength steel, they are engineered to withstand thermal cycling, dynamic stresses, and long-term operation, making them indispensable for maintaining structural integrity and operational safety in marine and power generation applications.
The sealing ring H 21420 is a critical sealing component designed to provide a tight, leak-free interface within fluid or pressure systems of the Sulzer ASL25 engine. Built to operate reliably under fluctuating pressures, temperature changes, and vibration, this sealing ring protects internal components from leakage and contamination. Its high-quality, application-pecific material ensures long service life, stable sealing performance, and contributes directly to the safety, efficiency, and durability of the engine’s operating systems.
The A ring H 27098 is a functional retaining and positioning element used in selected assemblies of the Sulzer ASL25 engine to secure components in their correct axial or radial position. Engineered to withstand vibration, thermal variation, and mechanical loads, this ring ensures dimensional stability and prevents unintended movement during engine operation. Manufactured with tight tolerances and durable material, the H 27098 ring contributes to assembly integrity, reduced wear of adjacent parts, and consistent long-term performance of the engine.
The ball cap H 27050 is a precision-machined seating component used in the valve train and mechanical linkage assemblies of the Sulzer ASL25 engine. Designed to provide accurate load transfer and controlled articulation at spherical contact points, this ball cap ensures smooth motion and reliable force distribution under continuous dynamic loading. Its robust construction and finely finished contact surfaces minimize friction and localized wear, helping maintain precise alignment, reduce mechanical stress, and support long-term reliability of critical valve and control mechanisms.
The welding plate with code 703020-8.2 is specifically designed for welded joints within the MAN L21/31 engine structure or its auxiliary assemblies. Optimized for high-quality welding, it provides a strong and fatigue-resistant connection capable of handling thermal expansion, mechanical stress, and vibration. This welding plate plays an important role in ensuring structural strength and durability, particularly in harsh marine environments where long service life and mechanical integrity are essential.
Plug screws with code EN47R13 are essential sealing and closing elements used throughout the MAN L21/31 engine to close threaded ports in oil, fuel, or cooling circuits. Designed to withstand pressure, temperature fluctuations, and vibration, these plug screws ensure leak-free operation and protect internal systems from contamination. Their reliable sealing performance and robust material quality make them a critical part of maintaining engine safety, cleanliness, and operational integrity.
The plate with code 2196069-1.0 is a structural component used within the MAN L21/31 engine to provide reinforcement, load distribution, or separation between adjacent assemblies. Precisely manufactured for accurate fitment, it helps maintain alignment and mechanical stability under continuous vibration and operating loads. Made from durable, high-strength material, this plate contributes to the robustness of the engine structure and supports long-term reliability in demanding marine and power generation environments.
The left-handed tachometer H 51345 is a mechanical speed-measuring device designed to monitor engine rotational speed in Sulzer ASL25 installations with left-hand rotation. Built for accuracy and reliability in harsh operating environments, this tachometer provides clear, consistent RPM readings essential for engine control, diagnostics, and safe operation. Its robust construction and precise internal gearing ensure stable performance under vibration and temperature variation, making it a dependable instrument for long-term monitoring in marine and industrial engine rooms.
The upper spring plate H 55049 is a robust load-distribution component used within the fuel pump or valve spring assembly of the Sulzer ASL25 engine. Designed to provide precise seating and even force transmission from the spring to adjacent components, it helps maintain accurate mechanical operation under continuous cyclic loading. Engineered for dimensional stability, vibration resistance, and long-term durability, this spring plate reduces localized stress, prevents premature wear, and contributes to the overall reliability and consistency of the fuel or valve actuation system.
The fuel pump piston and cylinder set H 55030 is a precision-engineered assembly at the heart of the Sulzer ASL25 fuel injection system, responsible for generating the high pressures required for accurate fuel delivery. Manufactured to extremely tight tolerances, this matched pair ensures controlled fuel metering, consistent injection timing, and efficient atomization under varying engine loads. Its wear-resistant materials and finely finished surfaces minimize internal leakage and friction, supporting stable combustion, reduced emissions, and long service life in demanding marine and industrial applications.