The sealing ring K 92030 is a precision–crafted gasket designed to provide a tight, leak-free barrier between the thermometers and their mounting points in the Sulzer/Adriadiesel/Jugoturbina/Zgoda ZV40/48 diesel engine. Built to withstand continuous thermal cycles, pressure variations, and strong engine vibrations, this sealing ring ensures accurate temperature measurement by preventing coolant, oil, or compressed air from escaping around the sensors. By preserving the integrity of the thermometer interfaces and protecting them from wear and corrosion, K 92030 contributes directly to reliable engine monitoring and long-term operational stability.
The main stop valve, code P51315-03, serves as a vital safety and control element in the fuel or air supply system of the MAN L21/31 engine. Designed to quickly isolate flow in emergency or shutdown conditions, it helps protect the engine and surrounding systems from damage or uncontrolled operation. Its robust design and fast-acting functionality ensure operational integrity, making it indispensable for secure and compliant engine operation in marine and power plant environments.
The turning gear, code P51325-12, is an essential maintenance and safety device in the MAN L21/31 engine, allowing for controlled rotation of the crankshaft when the engine is not running. This feature is critical during inspections, servicing, or startup procedures, ensuring precise positioning of engine components. With its secure mechanical engagement and reliable motorized drive, the turning gear enhances safety, aids in alignment tasks, and supports effective maintenance planning.
The air filter, code P51321-03, is a fundamental component in the MAN L21/31 engine’s intake system, responsible for preventing dust, debris, and other airborne contaminants from entering the combustion chamber. By ensuring a continuous supply of clean air, it protects internal engine parts from wear and maintains efficient combustion. Especially in harsh or marine environments, a high-quality air filter extends engine life, supports consistent performance, and contributes to lower emissions and optimal fuel usage.
The O-ring K 87183 is a precision elastomer sealing component designed for part K 87166, providing essential leak protection and pressure stability in the auxiliary systems of the ZV40/48 engine. Its circular cross-section allows uniform sealing contact, ensuring reliable performance even under high vibration, temperature variations, and continuous operating loads. Made from materials resistant to fuel, oil, and hydraulic fluids, the K 87183 O-ring prevents unwanted leakage and protects sensitive components from contamination or pressure loss. As a small yet critical element, it enhances overall system integrity and contributes significantly to the engine’s long-term reliability and efficiency.
The sealing ring K 87177 is a durable and high-pressure-resistant gasket specifically designed for the block-ball cock K 87165 within the ZV40/48 fuel supply system. Its primary function is to provide a tight, long-lasting seal that prevents any leakage around the valve mechanism, even under pulsating fuel pressures and significant thermal changes. Manufactured from resilient, fuel-resistant materials, this sealing ring ensures stable valve performance, preserves system safety, and minimizes the risk of contamination or loss of pressure. By safeguarding the integrity of the fuel line, K 87177 plays an essential role in maintaining operational reliability and extending the service life of the valve assembly.