The seal ring M20X26, code 100100, is a precision sealing component designed to provide leak-tight connections in the MAN L21/31 engine wherever threaded or bolted joints require dependable sealing. Engineered to withstand high operating pressures, temperature fluctuations, vibration, and continuous mechanical loading, the seal ring prevents the escape of lubricating oil, fuel, coolant, or compressed air while protecting the engine from the ingress of contaminants. Manufactured from high-quality wear-resistant and chemically resistant materials, it maintains its sealing properties over long service intervals even in demanding marine and industrial environments. By ensuring reliable system integrity and preventing fluid losses, the seal ring M20X26 contributes directly to improved engine efficiency, reduced maintenance requirements, and extended operational life.

The sleeve K 34124 is a precision-machined guiding component developed for the operating piston assembly of the Sulzer ZV40/48 engine. Its primary function is to provide accurate guidance, reduce friction between moving parts, and ensure smooth, controlled piston movement during engine operation. Manufactured from high-quality, wear-resistant materials with excellent mechanical strength, the sleeve is designed to withstand continuous dynamic loading, vibration, temperature fluctuations, and long-term service conditions. Precision dimensional control ensures optimal clearances, minimizing wear while maintaining reliable mechanical performance. By supporting precise piston guidance and reducing frictional losses, the K 34124 sleeve contributes to improved operational efficiency, extended component life, and dependable long-term engine performance.

The ring K 34123 is a precision support and positioning component designed for the operating piston assembly of the Sulzer ZV40/48 engine. Its primary purpose is to provide accurate alignment, structural support, and stable positioning of associated piston components while maintaining the integrity of the complete operating mechanism. Manufactured from durable, wear-resistant materials with excellent dimensional stability, the ring is engineered to withstand continuous vibration, thermal expansion, and cyclic mechanical loading. Precision manufacturing ensures consistent fitment, proper load distribution, and reliable operation throughout extended service intervals. By supporting stable piston movement and maintaining assembly accuracy, the K 34123 ring contributes to efficient engine operation, reduced component wear, and improved long-term reliability.

The cylindrical pin K 34117 is a precision positioning and fastening component designed for assembly K 34110 in the Sulzer ZV40/48 engine. Its primary function is to accurately locate and securely retain connected components while ensuring proper alignment under continuous operating loads. Manufactured from high-strength, precision-hardened steel, the pin is engineered to withstand shear forces, vibration, repeated cyclic loading, and demanding marine and industrial operating conditions without deformation or loss of dimensional accuracy. Precision machining guarantees an exact fit and reliable load transfer, minimizing movement between mating components and reducing mechanical wear. By maintaining assembly integrity and precise positioning, the K 34117 cylindrical pin contributes to smooth mechanical operation, increased component durability, and long-term engine reliability.

The oval flange, code 170901, is a precision-engineered connection component used in the MAN L21/31 engine to establish durable and pressure-resistant joints between piping systems, hoses, and mechanical interfaces. Its oval-shaped geometry allows efficient installation in confined engine spaces while ensuring balanced load distribution and reliable sealing performance under demanding operating conditions. Manufactured from robust and corrosion-resistant materials, the flange is designed to withstand vibration, thermal expansion, and exposure to aggressive marine or industrial environments. By providing stable and leak-tight system connections, the oval flange supports safe fluid transfer, minimizes operational risks, and contributes to the overall reliability and longevity of the engine systems.

The glues, code 395956, refer to specialized industrial adhesives specified for use in the MAN L21/31 engine during assembly, maintenance, and repair procedures. These high-performance bonding compounds are selected to provide secure retention, reliable sealing, and resistance to vibration, temperature fluctuations, lubricants, fuels, and other aggressive operating media. Depending on the application, they may be used for thread locking, sealing threaded joints, retaining cylindrical components, or preventing leakage and loosening of critical engine parts. Manufactured to meet demanding engineering standards, these adhesives help improve assembly reliability, reduce maintenance requirements, and ensure long-term operational stability under severe marine and industrial operating conditions.

The locking spring washer, code 515151, is a critical fastening component used in the MAN L21/31 engine to prevent the loosening of bolted joints caused by vibration, thermal cycling, and dynamic mechanical loads. Designed with elastic spring characteristics that maintain continuous preload, it preserves the strength and stability of mechanical connections throughout prolonged engine operation. Manufactured from hardened, wear-resistant materials and protected against corrosion, the locking spring washer delivers dependable performance in demanding marine and industrial environments. By maintaining fastening integrity and minimizing the risk of connection failure, this component contributes to improved operational safety, lower maintenance costs, and extended service life of engine assemblies.

The cylindrical pin K 34108 is a precision fastening and positioning component designed for the upper ball socket K 34104 in the Sulzer ZV40/48 engine. Its primary function is to securely retain and accurately position the ball socket within the operating piston assembly while allowing smooth mechanical movement where required. Manufactured from high-strength, precision-hardened materials, the pin is engineered to withstand shear forces, vibration, repeated cyclic loading, and long-term operational stresses without loss of dimensional accuracy. Precision manufacturing ensures exact fitment, reliable alignment, and consistent performance throughout extended service intervals. By maintaining the integrity of the articulated connection, the K 34108 cylindrical pin contributes to dependable operating piston performance, reduced mechanical wear, and long-term engine reliability.

The upper ball socket K 34104 is a critical articulation component within the operating piston mechanism of the Sulzer ZV40/48 engine. Its main purpose is to provide a secure yet flexible connection between the piston and its associated linkage, allowing controlled angular movement while efficiently transmitting operating forces. Engineered from durable, high-strength materials with excellent resistance to wear and fatigue, the ball socket is designed to perform reliably under continuous vibration, cyclic loading, and demanding service conditions. Precision machining ensures accurate geometry, smooth movement, and proper load distribution throughout the assembly. By maintaining precise mechanical articulation and minimizing stress concentrations, the K 34104 upper ball socket enhances operational reliability, extends component service life, and supports the efficient performance of the operating piston system.

The piston skirt K 34103 is a precision-machined component designed for the operating piston assembly of the Sulzer ZV40/48 engine. Its primary function is to guide and stabilize piston movement within its cylinder while maintaining correct alignment under varying mechanical loads. By distributing side forces generated during operation, the piston skirt minimizes friction, reduces wear on mating surfaces, and contributes to smooth, reliable reciprocating motion. Manufactured from high-strength, wear-resistant materials with excellent dimensional stability, the component is engineered to withstand continuous cyclic loading, vibration, temperature variations, and demanding marine and industrial operating conditions. Precision machining ensures optimal clearances and long-term operational accuracy. By supporting stable piston guidance and minimizing mechanical stress, the K 34103 piston skirt contributes to improved component longevity, reliable engine operation, and reduced maintenance requirements.