FLEXIBLE HOSE COUPLING

Function and technical context

This flexible coupling hose is part of the lubrication or cooling system of the marine engine, acting as a connecting element between components that require a certain freedom of movement or absorption of vibrations. Its flexible design makes it possible to compensate for slight misalignments between the connection points, reduce the transmission of mechanical vibrations and guarantee the tight circulation of the fluid between the sections of the circuit. Deterioration of the hose—due to cracking, hardening of the material or leaks at the coupling ends—can cause pressure losses in the circuit, contamination of the lubricating oil or interruption of the coolant flow, seriously compromising the operation of the propeller. The reference LUB10212 is manufactured to withstand the working conditions of the marine environment, where exposure to humidity, engine heat and boat movements require high resistance materials.

When to replace this part?

The most common signs of wear on a flexible coupling hose include oil or coolant stains in the engine compartment, visible stiffness or cracks in the rubber, excessive softening of the material, or leaks in the fitting areas. It is recommended to inspect it during each seasonal maintenance, paying special attention to the coupling ends, where pressure and temperature changes concentrate the greatest mechanical stress. Replacing the hose preventively when detecting any symptoms of degradation avoids more costly breakdowns in navigation, such as emptying of the lubrication circuit or overheating of the engine.

Compatibility table