3/8 MANUAL 3-WAY FUEL VALVE

Function and technical context

The 3/8" manual 3-way fuel valve (reference GS31011) is part of the fuel supply system in motor boats, allowing you to select, divert or cut off the flow of petrol between different tanks or supply lines using a simple manual lever. Its main function is to manage the fuel circuit safely and efficiently, making it possible to change tanks while sailing without the need for tools or stopping the engine. Poor operation of this valve can cause loss of fuel supply to the engine, unexpected stops while sailing or, in serious cases, petrol leaks that pose a risk of fire on board. The 3/8" connection makes it compatible with the most common standard fuel lines on outboard and inboard engines for recreational and professional use.

When to replace this part?

The most common symptoms that indicate that the 3-way fuel valve needs inspection or replacement are: difficulty turning the selector lever, dripping or leaking fuel in the connections or in the valve body, and intermittent interruptions in the petrol supply that cause idling problems or sudden engine stops. This type of component must be inspected during each seasonal maintenance, checking the condition of the internal seals and the tightness of all intakes, since the ethanol present in modern petrol can degrade the sealing materials with continued use. Replacing the valve preventively at the first sign of deterioration prevents breakdowns at sea and guarantees the safety of the fuel circuit on board.

Compatibility