Brass Tee Fitting 1/4 X 5/16 pack of 2

Function and Technical Context

This brass fitting with measurements 1/4" x 5/16" acts as a pass-through connector in the fuel circuit of outboard and inboard engines, allowing hose sections of different diameters to be joined in a watertight and secure manner. Its function within the fuel supply system is to ensure continuity of fuel flow without leaks, maintaining the pressure necessary for proper engine operation. Brass is the reference material for this type of fitting in marine environments due to its resistance to salt water corrosion and its compatibility with gasoline and ethanol blends. A deteriorated, cracked, or corroded brass fitting can cause micro-leaks of fuel that result in loss of power, rough starting, or in the worst case, risk of fire on board. This pack includes 2 units, which is especially practical for having an immediate replacement available during a repair or to complete an installation with two reduced diameter connections.

When Should You Replace This Part?

The most common symptoms indicating that a fuel fitting should be replaced are: persistent gasoline odor in the engine compartment, visible fuel stains on hoses near the fitting, or idle speed drop due to mixture leaning caused by a minimal but constant leak. It is recommended to inspect all fittings and connections in the fuel line at each seasonal maintenance, as brass can develop pitting from galvanic corrosion in saltwater environments. Preventively replacing these low-cost components avoids unexpected breakdowns during navigation and eliminates risks associated with fuel leaks in the hull.

Equivalent Manufacturer References