The retaining piece K 72139 is a structural securing element designed to hold and stabilize the flexible rod K 72135 within the Sulzer ZV40/48 engine assembly. Its primary function is to ensure correct positioning and prevent unwanted displacement of the flexible rod during operation, especially under dynamic loads and vibration. Manufactured with precise tolerances and durable material, it maintains alignment and contributes to the reliable transmission of motion or control forces. By securing the flexible rod in its designated position, the K 72139 retaining piece enhances operational stability, reduces mechanical stress, and supports the longevity of the associated system.

The block-type ball cock K 72302 is a robust flow-control component used in the cylinder lubrication system of the Sulzer ZV40/48 engine, designed to regulate and isolate the supply of lubricating oil to individual cylinders. Featuring a compact block construction and a precision-machined ball valve mechanism, it ensures reliable shut-off and smooth flow adjustment under pressure. Engineered to withstand oil exposure, vibration, and thermal variations, this valve provides durable and leak-free operation over long service intervals. By enabling precise control of lubrication flow, the K 72302 ball cock plays a key role in reducing wear, optimizing lubrication efficiency, and ensuring long-term engine reliability.

The cover K 74118 is a structural and protective component of the fuel transfer pump in the Sulzer ZV40/48 engine, designed to enclose and secure internal pump elements while maintaining system integrity. Engineered for precise fit and robust performance, it provides a sealed housing that protects internal components from contamination and ensures proper pressure containment during operation. Subjected to mechanical loads, vibration, and thermal influences, this cover is manufactured from durable materials to ensure long service life and dimensional stability. By maintaining the integrity of the pump assembly and supporting efficient fuel transfer, the K 74118 cover contributes to reliable engine operation and consistent fuel system performance.

The bearing bush K 74109 is a precision-machined sliding bearing component used in conjunction with components K 74102, K 74112, and K 74118 within the Sulzer ZV40/48 engine. Its primary function is to provide a low-friction, wear-resistant support surface for rotating shafts, ensuring accurate alignment and stable operation under continuous load conditions. Manufactured from high-quality bearing materials with optimized lubrication properties, the bush reduces mechanical wear, absorbs vibrations, and enhances the durability of the associated assemblies. By maintaining consistent operating clearances and minimizing friction losses, the K 74109 bearing bush plays a vital role in ensuring long-term reliability and efficient performance of the fuel transfer pump system.

The packing K 73139 is a specialized sealing element designed for use with component K 73134 in the Sulzer ZV40/48 engine, ensuring reliable sealing in demanding operational environments. Typically applied in areas subject to pressure, moisture, and mechanical movement, this packing material provides an adaptable sealing interface that compensates for minor surface irregularities and thermal expansion. Manufactured from high-performance, wear-resistant material, it maintains sealing integrity over extended service intervals while minimizing leakage risks. By protecting the assembly from fluid loss and contamination, the K 73139 packing contributes to improved system efficiency, reduced maintenance, and enhanced operational reliability.

The O-ring K 73137 is a precision elastomer sealing component used in bearing housing K 73111 within the Sulzer ZV40/48 raw water pump assembly. Its function is to provide a static seal between mating surfaces, preventing leakage of fluids and ingress of contaminants. Designed to maintain elasticity and sealing integrity under temperature changes, pressure variations, and vibration, this O-ring ensures consistent sealing performance over long service intervals. Its accurate fit and durable material properties support system integrity, protect internal components, and contribute to the efficient and reliable operation of the pump and overall engine cooling system.

The shaft seal K 73128 is an essential sealing element designed for installation in bearing housing K 73111 of the Sulzer ZV40/48 raw water pump assembly. Its primary function is to prevent the ingress of water and contaminants into the bearing area while retaining lubrication within the housing. Designed for continuous operation under rotating motion, pressure fluctuations, and exposure to moisture, this seal maintains reliable sealing performance and protects sensitive bearing components from premature wear. Manufactured with precision and durable sealing materials, the K 73128 shaft seal contributes to extended bearing life, reduced maintenance, and overall operational reliability of the pump system.

The mechanical seal K 73127 is a critical sealing component in the raw water pump of the Sulzer ZV40/48 engine, designed to prevent leakage along the rotating shaft while maintaining stable pump operation. Engineered to operate under continuous exposure to water, pressure variations, and shaft rotation, this seal provides a reliable barrier between rotating and stationary parts. Its precision-machined sealing faces and high-quality materials ensure low friction, reduced wear, and long service life. By maintaining tight sealing under demanding marine and industrial conditions, the K 73127 mechanical seal plays a key role in protecting pump components, preventing water ingress, and ensuring efficient and uninterrupted cooling performance.

The counter ring K 73126 is a precision-machined sealing and wear component used in the raw water pump of the Sulzer ZV40/48 engine. Positioned opposite rotating sealing elements, it provides a stable contact surface that ensures effective sealing and controlled friction during pump operation. Designed to operate in environments exposed to water, pressure fluctuations, and mechanical loads, this counter ring resists corrosion and wear while maintaining dimensional accuracy. Its function is essential for preventing leakage, protecting pump components, and ensuring reliable cooling water circulation, which is critical for maintaining optimal engine operating temperatures.

The expansion piece K 81138 is a critical flexible element within the exhaust piping system of the Sulzer ZV40/48 engine, designed to accommodate thermal expansion and mechanical movement during operation. Subjected to high exhaust temperatures and dynamic loads, this component absorbs axial and radial displacement, reducing stress on rigid piping sections and preventing structural damage. Manufactured from heat-resistant and fatigue-resistant materials, it ensures long-term durability and maintains gas-tight integrity. By compensating for thermal and mechanical stresses, the expansion piece enhances system reliability, reduces maintenance needs, and prolongs the lifespan of the exhaust assembly.