Five Oceans 1/4" NPT Male Fuel Tank Connector — Brass 2‑Prong for OMC/Johnson/Evinrude, Low‑Permeation

Five Oceans FO4407 is a brass 1/4" NPT male fuel tank connector built to mate with OMC/Johnson/Evinrude female fittings and most portable marine tanks, restoring a secure, low-permeation fuel connection.

This compact brass connector replaces worn or leaking tank-end fittings on outboard fuel systems. Designed to accept ethanol-blended fuels and to pair with Five Oceans female connectors (FO2152, FO2885) as well as original OMC/Johnson/Evinrude parts, the FO4407 uses a two-prong clip style for a positive engagement. It’s intended for boaters who need a reliable, easy-to-install tank interface without modifying existing hoses or tanks.

How does this connector ensure a leak-free connection?

The FO4407 uses precision-machined 1/4" NPT threads and a two-prong clip profile to form a stable mechanical union with compatible female fittings. Its brass construction resists corrosion and provides a durable sealing surface that tolerates ethanol blends better than many plastics. Properly installed, the connector reduces fuel vapor permeation and maintains a secure flow path under normal operating conditions.

• Brass 1/4" NPT male threads for tight mechanical seal
• Two-prong clip engagement to prevent accidental disconnection
• Low-permeation material choice to limit fuel evaporation
• Engineered for ethanol-blended fuels common in modern marinas

Will this fit my OMC/Johnson/Evinrude system and portable tank?

This connector was specifically made to match original OMC/Johnson/Evinrude female fittings and Five Oceans female parts like FO2152 and FO2885. The 1/4" NPT tank thread is a common standard, so it works with most portable tanks that accept a 1/4" NPT male fitting. Always confirm your tank or hose coupling uses a 1/4" NPT thread prior to purchase.

• Direct compatibility with OMC/Johnson/Evinrude OE fittings
• Fits Five Oceans FO2152 and FO2885 female connectors
• Standard 1/4" NPT thread for most portable tanks
• Check thread size on legacy tanks before installation

How easy is installation and what should I replace at the same time?

Installation is straightforward: thread the FO4407 into the tank’s 1/4" NPT port and snap the matching female fitting onto the two-prong clip. No special tools are required beyond a wrench to tighten the NPT fitting to recommended torque. For best results and safety, replace old fuel hoses and primer bulbs when installing a new connector to avoid future leaks and degradation.

• Thread into 1/4" NPT tank port, tighten with wrench
• Snap matching female fitting onto two-prong clip for secure hold
• Recommended: replace fuel hose and primer bulb concurrently
• Inspect O-rings or seals on the female side during service

What are common use cases and limitations for the FO4407?

The FO4407 is intended for marine outboard fuel systems and portable tanks where OMC/Johnson/Evinrude-style fittings are used. It performs well with ethanol-blended fuels but is not a complete retrofit for incompatible proprietary connectors. If your system uses nonstandard fittings or requires special thread types, a different adapter may be necessary.

• Designed for boats with OMC/Johnson/Evinrude fuel fittings
• Works with most portable tanks using 1/4" NPT ports
• Compatible with ethanol-blended fuels used in marinas
• Not suitable for non-NPT or proprietary tank fittings without adapter

Who is this for: The Five Oceans FO4407 connector is aimed at boat owners, mariners, and service technicians who need a durable, OE-compatible tank-end fitting to restore or maintain a secure fuel connection. It’s a practical replacement for aging or damaged male tank fittings on portable tanks and outboard setups, and best used alongside fresh hoses and primer bulbs to ensure a safe, leak-resistant fuel system.