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.

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 pressure valve H 55054 is a safety- and performance-critical control component used in the Sulzer ASL25 engine to regulate system pressure within defined operating limits. Engineered for fast response and precise pressure control, this valve protects downstream components from overpressure while ensuring stable and balanced system operation. Its robust construction and accurately calibrated spring mechanism allow reliable performance under continuous load, pressure fluctuations, and thermal stress, making H 55054 essential for maintaining operational safety, system reliability, and long service life of the engine.

The seal H 43630 is a critical sealing element used in the Sulzer ASL25 engine to prevent leakage of fluids and protect internal components from contamination. Designed to perform reliably under varying pressure levels, temperature fluctuations, and vibration, this seal maintains tight sealing integrity throughout extended service intervals. Manufactured from application-optimized, high-quality material, H 43630 ensures stable performance, protects adjacent components from wear or damage, and contributes directly to the safety, cleanliness, and efficiency of the engine’s lubrication or fluid systems.

The ball pin H 40034 is a precision-machined articulation component used in the mechanical linkage systems of the Sulzer ASL25 engine, where controlled angular movement and reliable force transmission are required. Designed to operate under continuous dynamic loading, vibration, and mechanical stress, this ball pin ensures smooth motion while maintaining secure engagement with mating components. Manufactured from high-strength, wear-resistant material with accurate surface finishing, H 40034 minimizes friction and play, contributing to precise motion control, reduced wear, and long-term reliability of the engine’s control and actuation mechanisms.

The bearing bolt H 45364 is a high-strength fastening element used to secure bearing components and bearing stands in the Sulzer ASL25 engine. Designed to maintain consistent clamping force under dynamic loads, vibration, and thermal expansion, this bolt ensures stable bearing positioning and structural integrity throughout long service intervals. Precision threading and controlled material properties provide reliable preload and resistance to loosening, making H 45364 essential for dependable bearing performance and long-term engine reliability.