The O-ring H 40070 is a vital sealing element used throughout the Sulzer ASL25 engine to ensure leak-free connections in fluid and pressure systems. Engineered to maintain elasticity and sealing performance under varying pressures, temperatures, and vibration levels, this O-ring prevents leakage of oil or other working fluids and protects internal components from contamination. Its application-optimized material and precise dimensional control support long service life, reliable sealing, and consistent performance in demanding marine and industrial operating environments.
The fake shell H 51302 is a precision-machined auxiliary component used in the Sulzer ASL25 engine for assembly, alignment, or testing purposes within bearing or housing arrangements. Designed to replicate the geometry and fit of an operational shell without performing a load-bearing function, it allows accurate setup, measurement, and verification during maintenance or overhaul procedures. Manufactured to tight dimensional tolerances, this fake shell supports safe handling of critical components, reduces the risk of damage during installation, and contributes to efficient, repeatable service work on the engine.
Cylindrical pins with code EN1P1228 are essential alignment and locating elements used throughout the MAN L21/31 engine assembly. These precision-machined pins ensure accurate positioning of components such as bearing caps, housings, covers, and structural parts during assembly and maintenance. Made from hardened steel, they provide high shear strength and excellent wear resistance, enabling repeatable disassembly and reassembly without loss of alignment. Their role is critical for maintaining geometric accuracy, minimizing stress concentrations, and supporting the long-term mechanical stability of the engine.
The guide bearing cap, code 11.01254-0169-1.E, is a variant designed to meet specific installation or revision requirements within the MAN L21/31 engine. Functionally identical in purpose to other guide bearing caps, it plays a crucial role in fixing and stabilizing bearing or guide components, ensuring precise positioning and consistent clearances. Its robust construction allows it to withstand cyclic loads, thermal expansion, and engine vibrations, helping preserve crankshaft alignment and overall mechanical integrity during long-term operation.
The guide bearing cap with code 11.01254-0169.A is a precision structural component in the MAN L21/31 engine, designed to secure and support guide or bearing elements within the crankcase assembly. Its primary function is to maintain accurate alignment of rotating or guiding components, ensuring stable operation under high mechanical loads. Manufactured to tight tolerances and from high-strength materials, this bearing cap contributes to reduced vibration, controlled load distribution, and long-term reliability of the engine’s bearing system, particularly in continuous-duty marine and power generation applications.
The shaft seal N 73126 is a precision-engineered sealing component designed to provide effective sealing around rotating shafts in the Sulzer ASL25 engine. Built to withstand continuous shaft rotation, pressure differentials, and thermal influences, this seal prevents leakage while minimizing friction and wear. Its durable construction and optimized sealing geometry ensure reliable long-term performance, protect bearings and housings from contamination, and play a vital role in maintaining the integrity and efficiency of the engine’s lubrication and fluid-handling systems.
The seal N 71091 is a critical sealing element used in the Sulzer ASL25 engine to prevent leakage of fluids and protect internal systems from contamination. Designed to maintain reliable sealing performance under fluctuating pressures, temperature variations, and continuous vibration, this seal ensures stable operation throughout extended service intervals. Its application-optimized material and precise manufacturing support long service life, safeguard adjacent components, and contribute directly to the cleanliness, efficiency, and safety of the engine’s fluid systems.
The impact bolt N 55053 is a high-strength fastening component designed for use in the Sulzer ASL25 engine where resistance to shock loads and dynamic mechanical forces is essential. Engineered to absorb repeated impact stresses and vibration without loss of clamping integrity, this bolt ensures secure positioning of critical components under demanding operating conditions. Manufactured from tough, fatigue-resistant material with precise dimensional control, the N 55053 impact bolt contributes to structural stability, operational safety, and long-term reliability of heavy-duty engine assemblies.
Flat steel bars with code EN43AG12080060 are high-quality raw materials used in the fabrication and repair of structural and mechanical components for the MAN L21/31 engine. Manufactured from alloy steel with excellent strength, toughness, and machinability, these bars serve as the base material for brackets, supports, plates, and custom-engineered parts. Their consistent dimensions and metallurgical properties ensure that finished components meet strict engine standards, contributing to long service life and mechanical integrity in heavy-duty marine and industrial installations.
The solenoid valve, code 1684052-1.1, is an electrically actuated control valve used in the MAN L21/31 engine to regulate the flow of air, fuel, or hydraulic media based on control signals. By converting electrical input into precise mechanical movement, it enables fast and accurate system response, supporting automated engine control, safety functions, and monitoring systems. Designed for continuous operation, this valve offers high reliability, quick switching times, and resistance to harsh operating conditions commonly found in marine propulsion and stationary power applications.