FITTING 3/8 x 14mm

Function and technical context

This 3/8" threaded fitting with 14 mm tube is a precision threaded connection that guarantees a watertight connection between sections of pipe in the fuel, cooling and hydraulic circuits of marine engines. Works at critical points where internal pressure and continuous engine vibration require exact dimensional fit to prevent leaks. Its standardized geometry allows the reliable interconnection of pipes and hoses in naval propulsion installations, acting as a sealing element and fluid transfer between system components. A fitting in poor condition or poorly tightened can cause loss of flow, air entry into the fuel circuit or coolant leak, with direct consequences on the performance and safety of the boat.

When to replace this part?

The most common symptoms of a deteriorated fitting are moisture or fuel stains around the connection, the smell of petrol or coolant in the engine compartment, and loss of pressure in the affected circuit that can manifest as irregularities in idling or overheating. It is recommended to visually inspect all fittings and threaded connections during each seasonal maintenance, paying special attention to signs of corrosion, cracks in the body or threads damaged by twisting. Replacing a fitting preventively at the slightest sign of deterioration prevents major breakdowns during navigation, where a leak in the fuel or cooling system can compromise the safety of the boat.

Engine Compatibility

Equivalent manufacturer part numbers