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.
The QS cylinder crankcase with code 0743748-6.2 forms the primary structural backbone of the MAN L21/31 engine, housing the crankshaft, bearings, and cylinder assemblies. Designed to withstand high mechanical loads, combustion forces, and continuous vibration, this crankcase ensures precise alignment of all rotating components. Its robust construction and quality specification (QS) compliance are critical for maintaining engine rigidity, reducing deformation, and supporting reliable long-term operation in demanding marine and power generation applications.
The screw H 74130 is a precision-engineered fastening element used throughout the Sulzer ASL25 engine to secure components and assemblies under continuous mechanical load. Designed to maintain consistent clamping force despite vibration, thermal cycling, and dynamic stresses, this screw ensures structural stability and correct alignment of connected parts. Its controlled material properties and accurate threading support reliable installation, resistance to loosening, and long service life, making H 74130 a small but essential contributor to overall engine reliability.
The spiral seal H 81153 is a high-performance sealing component designed to provide reliable sealing in demanding interfaces of the Sulzer ASL25 engine. Its spiral geometry allows effective compensation for thermal expansion, pressure variations, and surface irregularities, ensuring a tight and durable seal under dynamic operating conditions. Manufactured from heat- and pressure-resistant material, this seal minimizes leakage, protects adjacent components, and contributes to the long-term integrity and efficiency of fluid and gas systems within the engine.
The pressure gauge H 92062 is a precision measuring instrument used in the Sulzer ASL25 engine to provide accurate, real-time monitoring of system pressures in critical circuits such as lubrication, fuel, or cooling. Designed for reliable operation under vibration, temperature fluctuations, and continuous service conditions, this gauge ensures clear and stable readings essential for safe engine operation and diagnostics. Its robust construction and calibrated mechanism support long-term accuracy, enabling operators and maintenance personnel to detect abnormal pressure conditions early and maintain optimal engine performance.