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.
Cylindrical screws with code EN61T612 are precision fasteners widely used throughout the MAN L21/31 engine for securing components where reliable clamping and accurate alignment are essential. Manufactured from high-strength alloy steel, these screws are designed to withstand vibration, thermal cycling, and repeated tightening during maintenance. Their consistent quality and mechanical strength ensure secure assemblies, supporting safe operation and long service life of the engine in demanding industrial and marine conditions.
The welding plate, code 703020-8.2, is a specially prepared component intended for welded joints within the MAN L21/31 engine framework or auxiliary structures. Engineered to provide optimal weld integrity, it ensures strong, fatigue-resistant connections capable of withstanding thermal expansion, vibration, and operational loads. Its material properties and dimensional accuracy support high-quality welding results, contributing to the robustness and structural safety of the engine installation, particularly in heavy-duty marine environments.
The plate with code 1699385-9.0 is a structural and functional component used in the MAN L21/31 engine assembly to provide support, reinforcement, or separation between engine elements. Designed for precise fit and load distribution, this plate helps maintain alignment and structural stability under continuous mechanical stress and vibration. Manufactured from high-quality steel, it contributes to the durability of the engine structure and plays an important role in ensuring long-term reliability in marine and power-generation applications.
The impact bolt N 55052 is a high-strength mechanical fastening and load-transfer component used in the Sulzer ASL25 engine where resistance to shock loads and dynamic forces is required. Engineered to withstand repeated impact stresses, vibration, and high mechanical loads, this bolt ensures secure positioning of associated components under demanding operating conditions. Manufactured from tough, fatigue-resistant material with precise dimensional control, the N 55052 impact bolt contributes to structural integrity, operational safety, and long-term durability of critical engine assemblies.
The oil pressure regulation valve H 85700 is a vital control element in the lubrication system of the Sulzer ASL25 engine, responsible for maintaining oil pressure within precise operating limits. Designed for fast response and stable regulation under varying engine loads and temperatures, this valve protects bearings and moving components from both insufficient and excessive oil pressure. Its precision-machined internal geometry and robust spring mechanism ensure reliable performance, reduced mechanical stress, and long-term protection of the engine’s lubrication circuit.
The fuel filter cartridge H 87511 is a critical filtration component designed to protect the Sulzer ASL25 engine’s fuel system from contaminants such as particulates, water residues, and impurities. Engineered for high filtration efficiency and consistent flow characteristics, this cartridge ensures clean fuel delivery to sensitive injection components. Its robust filter media and durable construction support long service intervals, reduce wear on fuel system parts, and contribute directly to stable combustion, improved engine reliability, and optimal performance in demanding marine and industrial operating conditions.
The pipe clamp with code 1621702-2.2 is a fastening and support element designed to securely fix pipes within the MAN L21/31 engine installation. Its role is to stabilize pipelines carrying fuel, lubricating oil, cooling water, or air, preventing unwanted movement caused by vibration, pressure changes, or thermal expansion. Robust in design and resistant to corrosion, this clamp enhances system safety, minimizes fatigue-related failures, and supports an orderly, durable piping layout in marine and industrial engine environments.
Sleeves identified by code EN170H13 are precision-machined components used in the MAN L21/31 engine to provide alignment, wear protection, and dimensional stability between mating parts. Typically installed in high-load or high-friction zones, these sleeves act as protective interfaces that safeguard major engine components from direct wear. Made from high-quality alloy steel, they offer excellent resistance to abrasion, thermal stress, and mechanical loads, thereby extending service life and reducing maintenance requirements in demanding operating conditions.