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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.

Tuesday, 14 October 2025 05:54

MAN L21/31; PLUG SCREWS (Code EN47AR36)

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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.

The seal ring with code 06.56200-0724.0 is a critical component for maintaining airtight and leak-proof connections within the MAN L21/31 engine. Typically used in high-pressure areas such as cylinder interfaces or fluid line couplings, the seal ring prevents the escape of oil, coolant, or combustion gases. Its resistance to heat, pressure, and chemical corrosion makes it essential for maintaining system integrity and ensuring long-term operational efficiency and safety in demanding marine or industrial environments.

The ball bearing with code number K 32388 is a core element in the rotating assembly of the Sulzer ZV40/48 engine, specifically designed to fit into bearing insert K 32332. This high-performance bearing minimizes friction and wear while supporting axial and radial loads during continuous engine operation. Engineered for reliability and precision, it ensures smooth movement within the drive system and contributes significantly to the longevity and performance of the entire mechanical setup.

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