The seal ring M20x26, code 06.56190-0715-1.0, is a critical sealing component used in fluid systems of the MAN L21/31 engine. Designed to provide leak-tight connections at threaded or bolted interfaces, it prevents the escape of lubricating oil, cooling water, or fuel under pressure. Its precisely defined dimensions ensure optimal compression and sealing efficiency, while its material composition resists temperature fluctuations, chemical exposure, and mechanical stress. Reliable sealing is essential for maintaining system pressure, preventing contamination, and ensuring efficient and safe engine operation.
The cylindrical pin, code 06.22020-1214.0, is a precision alignment and positioning element used throughout the MAN L21/31 engine assembly. Designed to ensure exact component placement, it maintains structural alignment between mating parts such as bearing caps, housings, and structural casings. Manufactured from hardened steel to withstand shear forces and vibration, this pin plays a crucial role in maintaining dimensional accuracy and long-term mechanical stability. Though compact in size, it is fundamental to ensuring repeatable assembly quality and reliable engine performance under demanding marine and industrial operating conditions.
The gasket with code 06.56936-2355-1.0 is an essential sealing element in the MAN L21/31 engine, used to prevent leakage of fluids or gases between mating surfaces. Designed to withstand pressure, temperature fluctuations, and chemical exposure, this gasket ensures reliable sealing in systems such as lubrication, cooling, or fuel circuits. Its precise fit and material properties contribute directly to engine cleanliness, efficiency, and operational safety, making it indispensable for long-term, trouble-free engine operation in marine and industrial applications.
The nut with code 11.01296-0060.E is a precision fastening component used in conjunction with tie rods or studs in the MAN L21/31 engine. Designed for high preload applications, it ensures secure and stable clamping under extreme thermal and mechanical stresses. Accurate torque application on this nut is essential for maintaining correct tension, preventing loosening due to vibration, and safeguarding critical engine assemblies. Despite its compact size, this component plays a vital role in the overall structural integrity and reliability of the engine.
The tie rod with code 11.01295-0277-1.B is a critical structural fastening element in the MAN L21/31 engine, designed to clamp major engine components such as the cylinder head and crankcase with uniform and controlled pre-tension. Engineered to withstand high mechanical loads, thermal expansion, and continuous vibration, this tie rod ensures even load distribution and long-term dimensional stability of the engine structure. Its high-strength material and precise manufacturing are essential for maintaining sealing integrity, minimizing distortion, and supporting reliable operation in demanding marine and power generation environments.
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.
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.