The nut H 11152 is a high-strength fastening component used in the Sulzer ASL25 engine to secure bolted joints subjected to continuous vibration and mechanical stress. Engineered to maintain consistent clamping force under thermal cycling and dynamic loads, this nut ensures reliable retention of critical assemblies. Its precisely formed threads and controlled material properties support secure installation, resistance to loosening, and long service life, making it an essential element for maintaining structural stability and operational safety.

The A ring H 16321 is a precision retaining and positioning element used in selected assemblies of the Sulzer ASL25 engine to ensure secure axial or radial fixation of components. Designed to operate reliably under vibration, thermal variation, and continuous mechanical loading, this ring prevents unintended movement during engine operation. Manufactured to tight tolerances from durable material, the H 16321 A ring supports assembly integrity, reduces wear on mating parts, and contributes to stable, long-term performance in demanding marine and industrial applications.

The cover with splash tube, code 11.01213-0057-1.0, plays a key role in maintaining proper lubrication conditions within the MAN L21/31 engine. Designed to guide lubricating oil precisely where it is needed, it minimizes oil losses and reduces the risk of contamination or foaming. Its robust construction and precise fit contribute to long service life, lower maintenance demands, and reliable engine performance in demanding marine and stationary power environments.

The cover with splash tube, code 11.01213-0057-1.0, is an integrated lubricating-oil management component in the MAN L21/31 engine. Its primary function is to control and direct oil splash inside the engine, ensuring that critical components such as bearings and gears receive adequate lubrication while preventing excessive oil dispersion. By promoting controlled oil flow and cleanliness, this cover helps reduce wear, improve lubrication efficiency, and support stable engine operation during continuous heavy-duty service.

Round steel bars with code EN43AE01100028 are high-quality alloy steel materials used in the manufacture and refurbishment of critical MAN L21/31 engine components. Thanks to their excellent strength, toughness, and machinability, these bars are ideal for producing precision parts such as shafts, pins, studs, and structural elements. Their stable metallurgical properties ensure consistent performance under high mechanical loads and thermal stress, making them an essential base material for reliable marine and power-generation engine applications.

The piston H 74126 is a key working component within the Sulzer ASL25 engine, designed to withstand high combustion pressures, elevated temperatures, and continuous mechanical loading. Manufactured from high-strength alloy with optimized geometry and surface finish, this piston ensures efficient force transmission, controlled thermal expansion, and reduced friction against the cylinder liner. Its precision engineering supports stable combustion, consistent power output, and long service life, making it essential for reliable operation in demanding marine and industrial applications.

The spring H 74138 is a functional mechanical component used in the Sulzer ASL25 engine to apply controlled force and ensure correct operation of associated assemblies, such as valves or regulating mechanisms. Engineered for high fatigue resistance and dimensional stability, this spring maintains consistent performance under repeated compression, vibration, and thermal stress. Its precisely defined spring characteristics contribute to reliable system response, reduced wear of moving parts, and stable long-term operation of the engine.

The pressure gauge H 92063 is a precision monitoring instrument used in the Sulzer ASL25 engine to provide accurate and continuous indication of pressure in critical systems such as lubrication, fuel, or cooling circuits. Designed for reliable performance under vibration, temperature fluctuations, and continuous engine operation, this gauge delivers clear and stable readings essential for safe operation and effective diagnostics. Its robust housing and calibrated measuring mechanism ensure long-term accuracy, enabling early detection of abnormal pressure conditions and supporting optimal engine performance.

Cylindrical pins with code EN1P1228 are essential alignment components used throughout the MAN L21/31 engine to ensure precise positioning of parts such as bearing caps, housings, and covers. Made from hardened steel, these pins provide high shear strength and wear resistance, allowing for accurate assembly and repeatable reassembly during maintenance. Their role is vital in preserving geometric accuracy, preventing misalignment, and maintaining the overall mechanical stability of the engine.

The guide bearing cap with code 11.01254-0169.A is a precision-machined component used to secure and stabilize guide or bearing elements within the MAN L21/31 engine. By maintaining accurate positioning and controlled clearances, it ensures smooth operation of rotating or guided parts under high loads. Manufactured to tight tolerances from high-strength materials, this bearing cap contributes to reduced vibration, proper load distribution, and the long service life of the engine’s bearing system.