HOSE FITTING 3/8X3/8

Function and technical context

This 3/8" x 3/8" hose fitting acts as a connecting element between sections of conduit in the water cooling circuits and filtering systems of marine engines, guaranteeing the tightness of the flow under continuous pressure. It works integrated into the auxiliary cooling system, where it connects fresh or salt water inlet and outlet hoses that run between the water pump, the heat exchanger and the sea filter. Its 3/8" thread at both ends ensures a hermetic connection that does not allow leaks even when the engine is subjected to constant vibration typical of naval propulsion. A fitting in poor condition causes cooling flow losses that lead to overheating of the block, with the consequent risk of damage to head gaskets and internal engine components.

When to replace this part?

The most common symptoms of deterioration in a hose fitting are the appearance of moisture or dripping at the connection points, visible cracks in the thread or in the body of the fitting, and difficulty in achieving a tight fit when reinstalling the hose. In saltwater environments, galvanic corrosion can silently weaken the fitting material, so it is a good idea to inspect it during each seasonal maintenance even if there are no obvious symptoms. Preventively replacing this element before the sailing season avoids unforeseen stops due to overheating and emergency repairs at sea.

Marine Engine Compatibility

Equivalent manufacturer part numbers