Yamaha/Mariner/Mercury Fuel Tank Male Connector – Brass Fitting

This male tank connector is specifically designed for the fuel systems of Yamaha, Mercury, and Mariner outboard engines. It installs on the outlet of a portable fuel tank (or on the fuel line right after the tank) and serves as the quick-connect fitting to which the boat’s fuel hose attaches. The connector features the dual pin configuration characteristic of the Yamaha/Mercury standard, allowing the female connector on the fuel hose to latch on securely with a click.

On the tank side, the connector has a 1/4" NPT tapered thread – the universal size for many portable fuel tanks and shutoff valves. Installation is straightforward: thread the connector into the tank’s port (using fuel-grade Teflon tape on the threads for a good seal is recommended) until its brass shoulder seats firmly. Once installed, it provides a dependable link: an internal check valve holds fuel in the tank when the hose is disconnected, preventing spills and excessive air entry. When the hose connector is snapped on, the valve opens automatically to allow fuel flow to the engine.

Use Cases: The brass connector 00862-2 is compatible with a wide range of Yamaha, Mercury, and Mariner outboards – from small 4–5 HP kickers up to large V6 engines – since many of these use the same style fuel connector. Additionally, many Chinese-made clones (e.g. Parsun, Hidea, Sail) use this standard, which means the connector works for them as well. It is primarily used on portable tanks (12–25 liters) or on built-in tanks with detachable fuel lines. Its high-flow design makes it suitable even for engines with greater fuel demand.

Recommendations: When installing, ensure the tank’s threaded port is 1/4" NPT and clean any debris from it. Apply a fuel-resistant thread tape or sealant to the connector’s threads. Thread the connector in, taking care not to over-tighten – while brass is robust, excessive force could damage it or the tank fitting. After installation, attach the hose’s female connector by pushing it on until the locking mechanism clicks. Check for any leaks around the threads and connector area upon first filling the tank and running the engine. With proper installation, this brass fitting will provide secure fuel supply and allow quick tank disconnection when needed, without fuel loss or air intrusion into the system.