The bush coded K 28008 is a vital wear-resistant insert used in the Sulzer ZV40/48 diesel engine's main rocker arm (K 28005). This component serves as a bearing surface, allowing the rocker arm to pivot smoothly with minimal friction while maintaining precise valve timing under high load conditions. Engineered for durability, the bush absorbs stress and reduces wear on the rocker arm, significantly extending the engine’s service life. Regular inspection and lubrication of this part are essential to ensure efficient valve actuation and overall engine performance.

The engine frame, code D51101-06.0, serves as the structural backbone of the MAN L21/31 engine. It houses and supports the core components such as the crankshaft, camshaft, and cylinder block, ensuring proper alignment and load distribution. Built for high strength and long service life, the engine frame plays a critical role in maintaining the integrity and vibration resistance of the engine, especially in demanding marine propulsion or power generation environments.

The torque wrench, code 08.06411-0021.0, is a vital instrument in the toolkit for maintaining MAN L21/31 engines. Used to apply precise torque to bolts and nuts, this tool helps prevent overtightening or under-tightening, both of which can lead to engine damage or failure. Accurate torque application ensures optimal sealing, component lifespan, and safe engine operation, making the torque wrench indispensable for high-performance marine and industrial engine servicing.

The socket spanner with code 11.49001-0533 is an essential precision tool for efficient servicing of the MAN L21/31 engine. Designed for durability and exact torque application, this spanner allows technicians to safely access and tighten critical fasteners during maintenance and assembly procedures. Its robust construction and ergonomic fit make it ideal for engine environments where reliability and accuracy are paramount.

The protective tube identified by code H 40052 is a safeguarding element designed to shield critical ASL25 engine components from mechanical damage, contamination, or excessive wear. Acting as a durable barrier, it prevents dust, debris, or oil from interfering with the functionality of moving parts. Built from resilient materials capable of withstanding thermal and mechanical stress, this tube not only prolongs the service life of the engine but also ensures consistent performance under demanding operating conditions.

The lifting pole H 40042 serves as a specialized handling tool for the ASL25 engine, aiding in the safe lifting and maneuvering of heavy engine parts during maintenance or assembly. Engineered for strength and stability, it ensures that technicians can operate efficiently while minimizing the risk of damage to sensitive components. Its robust construction and ergonomic design make it an essential accessory in workshops and marine environments where precision and safety are paramount.

The ball pin coded H 40034 is a compact yet vital connecting element within the ASL25 diesel engine. Designed to provide pivoting movement, it enables smooth articulation between mechanical linkages where flexibility and precision are required. Its spherical end ensures reduced friction and wear, while also distributing forces evenly across the joint. Manufactured from durable, hardened materials, the ball pin guarantees reliability under continuous stress, making it indispensable for the stable and efficient operation of the engine’s moving parts.

The finish machining of spanner, code 11.49001-0533.0, represents the high-precision tooling required for servicing the MAN L21/31 engine. Properly machined spanners ensure accurate torque application, protecting critical fasteners from damage during assembly and maintenance. This tool not only improves efficiency in routine service but also upholds safety and reliability standards, making it an indispensable asset for marine engineers and technicians working on MAN diesel engines.

The welded piece, code 11.49065-0758.0, highlights the importance of durable and custom-engineered parts in the MAN L21/31 engine. These welded components are designed to handle significant loads and vibrations, often serving as reinforcements or connectors within the engine structure. High-quality welding techniques ensure strength and longevity, making this piece a dependable contributor to the overall robustness of the engine system.

The intermediate plate, code 11.49062-2325.0, is a crucial structural element in the MAN L21/31 engine assembly. It provides stability and alignment between adjoining components, ensuring that forces are evenly distributed and mechanical stress is minimized. Built with precision machining and robust materials, the intermediate plate helps maintain the overall rigidity of the engine, contributing to smoother operation and long-term reliability under demanding marine and industrial conditions.