The valve spindle, code number K 27521, is a core component of the exhaust system in the ZV40/48 diesel engine. It acts as the movable shaft that opens and closes the exhaust valve in synchronization with the engine cycle. Crafted from heat-resistant, wear-resistant materials, this spindle is designed to withstand extreme combustion temperatures and mechanical stress. Its precision engineering ensures tight sealing and smooth operation, directly affecting exhaust flow efficiency and overall engine performance.

The shim with code number K 27706 is a small but vital precision spacer used in the assembly of the relief valve in the ZV40/48 engine. It fine-tunes the valve’s operational clearance and spring tension, directly influencing the opening pressure and response characteristics. Made from durable, corrosion-resistant material, the shim ensures stable valve performance and consistent system protection. Its accurate thickness control allows technicians to calibrate pressure limits with high precision, ensuring both efficiency and safety in demanding operating environments.

The relief valve coded K 27700 serves a critical safety function in the ZV40/48 diesel engine by regulating excessive pressure within the system. It automatically opens when pressure exceeds the preset limit, protecting sensitive components from potential damage. Engineered for durability and precision, the valve ensures smooth operation under high-pressure conditions while maintaining system stability. This component is essential for preserving the safety, performance, and longevity of both marine and industrial diesel engine installations.

The conical clamping half-ring, marked with code number K 27529, is a key component in securing the exhaust valve assembly of the ZV40/48 diesel engine. Its conical geometry ensures uniform pressure distribution during valve installation and operation, reducing localized stress on the valve stem and associated parts. Designed to endure high thermal loads and constant vibration, this precision-engineered ring plays a vital role in maintaining valve alignment and sealing integrity, ultimately contributing to the engine’s reliable exhaust flow and long-term durability.

The conical disc with code K 21005 is an essential pressure-distribution component used with clamping pieces in the engine. Its conical shape helps evenly distribute load forces across the contact surface, reducing localized stress and enhancing mechanical stability. By improving the connection between fasteners and structural elements, this disc plays a crucial role in minimizing fatigue and prolonging the life of the engine’s critical joints.

The bolt identified as K 21002 plays a vital role in securing the clamping pieces that hold key engine components in place. Engineered for high strength and vibration resistance, this bolt withstands substantial mechanical loads during operation. Its precise threading and high-grade material ensure reliable fastening, making it indispensable for maintaining structural integrity and alignment throughout the engine’s working life.

The O‑ring with code K 21404 is a critical sealing element designed for the cylinder liner of the engine. Its primary function is to provide a leak‑proof barrier between the liner and engine block, preventing coolant and combustion gases from mixing. This component endures high temperatures and pressures, maintaining its integrity even under intense thermal cycling. A properly functioning O‑ring is essential for preserving compression and ensuring optimal engine performance over long operational periods.

The upper bearing of the connecting rod, marked H 33021, is an essential wear surface between the connecting rod and crankshaft pin in the Sulzer ASL25 engine. It allows for smooth rotational movement and reduces metal-on-metal contact, thereby preventing damage and minimizing frictional losses. Constructed from high-load, fatigue-resistant materials, this bearing supports the dynamic motion of the engine’s internal components and plays a crucial role in preserving performance and efficiency over long-term use.

The connecting rod bolt, code H 33030, is a high-strength fastener used to secure the two halves of the connecting rod in the Sulzer ASL25 diesel engine. This bolt is engineered to withstand immense tensile and compressive forces during combustion cycles, making it an essential element for the engine’s structural integrity. Its precise threading and torque capacity help maintain engine balance and prevent catastrophic failure, ensuring smooth performance across thousands of operating hours.

The bearing sleeve with code number H 40002 is a critical component in the Sulzer ASL25 engine, designed to support and align rotating shafts while minimizing friction. This sleeve serves as a protective intermediary between the shaft and housing, absorbing wear and maintaining precision alignment under thermal and mechanical stress. Built with high-performance materials, it plays a vital role in extending the service life of the crankshaft system and ensuring reliable operation, especially in marine or industrial environments where durability is key.