The cylinder crankcase with code 11.01200-3593-1.L forms the core structural foundation of the MAN L21/31 engine, housing the crankshaft, main bearings, and lower sections of the cylinder assembly. Designed to withstand high combustion forces, torsional loads, and continuous thermal stress, the crankcase ensures precise alignment of all rotating components. Its rigid construction is essential for minimizing vibration, maintaining lubrication integrity, and guaranteeing long-term reliability in demanding marine propulsion and power generation applications.
The piston ring H 34027 is a vital sealing and wear component of the Sulzer ASL25 piston assembly, designed to maintain optimal compression and control oil consumption within the cylinder. Manufactured from high-quality, wear-resistant material, this piston ring provides effective sealing between the piston and cylinder liner under high pressure and temperature conditions. By minimizing blow-by gases, reducing friction, and ensuring efficient heat transfer from the piston to the cylinder wall, H 34027 plays a key role in combustion efficiency, emission control, and long-term durability of the engine.
The connecting rod with cover H 33001 is a critical power-transmission assembly in the Sulzer ASL25 engine, responsible for converting the linear motion of the piston into rotational motion of the crankshaft. Engineered to withstand extreme tensile and compressive forces generated during combustion, this component ensures precise bearing alignment and efficient load transfer. Its robust construction, precision machining, and balanced design minimize vibration and bearing wear, making it essential for reliable engine performance, mechanical integrity, and long service life under continuous heavy-duty operation.
The spring H 27221 is a precision-engineered elastic component used within the Sulzer ASL25 engine to provide controlled force and stable operation of associated mechanical assemblies. Designed to perform reliably under repeated loading cycles, vibration, and elevated operating temperatures, this spring maintains consistent force characteristics throughout long service intervals. Its high fatigue resistance and dimensional stability contribute to accurate component positioning, reduced mechanical wear, and dependable long-term engine operation in demanding marine and industrial environments.
The thermostat housing with code 11.41100-0626.0 forms the protective and functional enclosure for the cooling water thermostat in the MAN L21/31 engine. This robust housing ensures proper coolant routing, pressure containment, and leak-free operation within the engine’s cooling circuit. Engineered for high thermal resistance and mechanical strength, the thermostat housing plays a vital role in maintaining precise temperature control, safeguarding internal components, and ensuring reliable engine operation under continuous load conditions.
The intermediate piece with code 11.41199-0008.0 serves as a precision connecting element within the MAN L21/31 engine assembly, providing accurate alignment and secure mechanical integration between adjoining components. Designed to withstand vibration, thermal expansion, and dynamic loading, this component ensures correct geometry of the engine system and smooth transfer of forces between connected structures. Its dimensional accuracy and material integrity are essential for long-term operational stability and low-maintenance performance in demanding marine and industrial environments.
The cooling water thermostat with code 11.06011-0073.0 is a critical temperature-regulating component in the MAN L21/31 engine, responsible for maintaining the engine within its optimal operating temperature range. By automatically controlling coolant flow based on thermal conditions, the thermostat ensures rapid warm-up, stable combustion performance, and effective protection against overheating. Its precise response characteristics directly contribute to improved fuel efficiency, reduced mechanical wear, and extended service life — especially under continuous heavy-duty marine and power-generation operation.
The piston H 34001 is a core combustion component of the Sulzer ASL25 engine, designed to withstand extreme thermal loads, high combustion pressures, and continuous mechanical stress. Manufactured from high-strength alloy with optimized geometry and surface treatment, it ensures efficient force transfer, reduced friction, and controlled oil consumption. Its precision engineering supports stable engine performance, low emissions, and long-term reliability, making H 34001 essential for demanding marine and power-generation applications.
The valve H 27702 is a critical flow-control component within the Sulzer ASL25 engine’s combustion system, responsible for regulating the intake and exhaust gas exchange during each engine cycle. Engineered for high-temperature resistance, wear durability, and dimensional stability, this valve ensures tight sealing, efficient airflow, and optimal combustion performance. Its robust construction and precision machining reduce leakage, support consistent power output, and extend service life under continuous heavy-duty operation in marine and industrial environments.
The adjustment screw H 27217 is a precision control component used in the valve train system of the Sulzer ASL25 engine, enabling accurate setting of valve clearance and timing parameters. Designed to maintain stable positioning under vibration, thermal expansion, and continuous mechanical load, this screw ensures consistent engine performance and protects critical valve components from premature wear. Manufactured from high-strength material with precise threading, H 27217 provides reliable adjustment, long-term dimensional stability, and contributes directly to efficient combustion and smooth engine operation.