Yamaha/Mariner/Mercury Fuel Tank Connector (Male, Ø8mm)

This Ø8mm male fuel connector is intended for the fuel tanks of Yamaha, Mariner, and Mercury outboard engines (including analogous brands like Parsun that use the same style connectors). The connector threads into or attaches to the output port of the portable fuel tank. Its role is to provide the standard Yamaha/Mercury quick-connect interface for the fuel hose’s female fitting to latch onto swiftly and securely.

Features: The opening and barb diameter is 8mm (5/16″), which is a widely used size for fuel lines on smaller to mid-range outboards (typically up to around 50–60 HP). The connector is engineered to match the specifications of genuine Yamaha/Mercury parts, meaning it has the identical shape and locking mechanism as the factory connectors. It’s made from impact-resistant, fuel-grade plastic with integrated metal (brass) components forming the reliable check valve. The built-in valve prevents gasoline from leaking out when the hose is not connected – similar to OMC connectors, a spring keeps it closed upon disconnection.

Practical Advantages:

• Wide Applicability: The same connector model is used by multiple manufacturers – for example, if you have an inflatable boat with a Yamaha 15HP motor and a backup Parsun 5HP engine, both can use this type of connector on their tanks. This simplifies finding parts and interchangeability.
• Quick Swaps: Thanks to the quick-connect system, you can detach the fuel hose from one tank and snap it onto another in seconds (for instance, swapping to a full tank while underway without a long stop).
• Reliability: The snug seal and positive “lock-in” eliminate the chance of a false connection. Once you hear the characteristic click, you know the hose is properly attached and locked. This prevents accidental disconnection due to vibration or a tug on the hose.

Installation & Compatibility: The connector typically mounts directly on the tank (often into a plastic fuel tank fitting or metal adapter with threads). It is a direct replacement – if the original male fitting on your Mercury tank is damaged, this unit can replace it one-for-one. After installation, simply attach the hose’s female connector onto it. Ensure both connectors are free of debris to preserve the O-ring and ensure longevity of the seal.

This Yamaha/Mercury fuel tank fitting is a small but critical component of your fuel system. Its flawless operation is essential: it not only needs to deliver fuel, but also prevent spills and keep the fuel system airtight. By investing in a quality connector like this, you gain peace of mind and convenience every time you refuel and get underway. It’s recommended that boat owners and marine technicians keep at least one spare of this connector on hand, as it’s universal to many models and a failure can put your boat out of commission until replaced.