Brass Fuel Connector 6.35 mm Barb – 1/4" NPT Thread

This brass fuel connector fitting combines a 6.35 mm hose barb with a 1/4" NPT threaded end, making it an extremely handy and versatile component for various fuel setups. It serves as a link between a flexible fuel hose and a tank, shutoff valve, fuel filter, or engine inlet that has a 1/4" NPT threaded port.

The brass construction ensures durability and reliability – brass will not corrode when in contact with gasoline or diesel and is resistant to saltwater, which is crucial for marine use. The tapered 1/4" NPT thread provides a tight seal when screwed into the port (use of Teflon tape or a fuel-rated thread sealant is recommended during installation to prevent any leaks). The 6.35 mm barb allows the fuel hose to slip on snugly; once secured with a hose clamp, the connection is firm and fuel-tight.

Use Cases: This fitting is a standard solution for small gasoline engines (e.g. outboard motors up to ~10–15 HP, portable generators, lawn mowers, etc.), as well as for boat fuel tanks that feature a 1/4" NPT outlet. It can be utilized when adding an in-line fuel filter or replacing an old, leaking connector in your fuel system. Thanks to its universal nature, it’s also useful in automotive and agricultural equipment – anywhere a reliable transition between a 1/4" hose and a 1/4" NPT thread is needed.

Recommendations: When installing the threaded end, ensure the port is indeed 1/4" NPT (tapered) and apply a fuel-grade thread sealant (tape or paste). Tighten with an appropriate wrench – brass is sturdy but softer than steel, so avoid over-torquing. After attaching the fuel hose, clamp it securely with a stainless hose clamp. Periodically inspect all connections for leaks, especially on initial use. With proper installation, this brass fitting will provide a secure, trouble-free fuel connection with no unwanted drips or fuel loss.