The seal ring M20X26 is a small yet essential component in the MAN L21/31 engine, used to maintain fluid-tight connections in high-pressure and high-temperature environments. It prevents leaks, supports engine cleanliness, and contributes to long-term performance and efficiency.
The upper bearing of the connecting rod, marked H 33021, is an essential wear surface between the connecting rod and crankshaft pin in the Sulzer ASL25 engine. It allows for smooth rotational movement and reduces metal-on-metal contact, thereby preventing damage and minimizing frictional losses. Constructed from high-load, fatigue-resistant materials, this bearing supports the dynamic motion of the engine’s internal components and plays a crucial role in preserving performance and efficiency over long-term use.
The connecting rod bolt, code H 33030, is a high-strength fastener used to secure the two halves of the connecting rod in the Sulzer ASL25 diesel engine. This bolt is engineered to withstand immense tensile and compressive forces during combustion cycles, making it an essential element for the engine’s structural integrity. Its precise threading and torque capacity help maintain engine balance and prevent catastrophic failure, ensuring smooth performance across thousands of operating hours.
The bearing sleeve with code number H 40002 is a critical component in the Sulzer ASL25 engine, designed to support and align rotating shafts while minimizing friction. This sleeve serves as a protective intermediary between the shaft and housing, absorbing wear and maintaining precision alignment under thermal and mechanical stress. Built with high-performance materials, it plays a vital role in extending the service life of the crankshaft system and ensuring reliable operation, especially in marine or industrial environments where durability is key.
Cylindrical pins, code EN1P1228, are precision alignment tools used throughout the MAN L21/31 engine to ensure accurate positioning of components such as housings, covers, and structural subassemblies. These hardened steel pins are essential for maintaining mechanical alignment, preventing rotational slip, and ensuring consistent load distribution across connected parts. By securing the geometry of critical interfaces, cylindrical pins play a vital role in minimizing wear and maintaining the long-term reliability of the engine.
Plug screws under code EN47AR36 are specially designed fasteners used in various MAN L21/31 engine applications to seal threaded ports, inspection holes, or auxiliary component openings. These screws ensure secure closures that withstand pressure and thermal stress while also allowing maintenance access when needed. Made from corrosion-resistant materials and manufactured with precision threads, plug screws contribute to the engine’s reliability and help prevent fluid leaks or contamination.