Dual Fuel Tank Filler Neck with Integrated 2-Tank Selector Valve

This professional dual-tank fuel filler neck doubles as a deck filler and a fuel selector valve, revolutionizing fuel management on board. Boaters with twin fuel tanks can now switch the engine’s fuel feed between tanks effortlessly, without additional plumbing or tools. A clearly indexed rotary selector offers three positions – Tank 1, Tank 2, and Closed – so you can always choose the desired fuel source or shut off fuel flow for safety. This capability is invaluable on long voyages, allowing you to balance the boat’s trim by drawing fuel evenly from both tanks, or isolate a tank for maintenance and reserve.

Built from high-grade stainless steel, the unit resists fuel corrosion and saltwater exposure. The flange mount (87 x 94 mm) sits flush on the deck or console, and the Ø69 mm cutout size matches common deck fittings. The selector mechanism is enclosed in a protective housing, presenting a sleek, low-profile appearance. Three 1/4" threaded ports accommodate standard fuel hose fittings, making it straightforward to plumb into your existing fuel system.

Use Cases: Ideal for motor yachts, sport-fishing vessels, and cruisers equipped with dual built-in fuel tanks. Highly recommended for medium to large boats where managing fuel weight distribution is crucial. This dual-tank selector filler allows you to designate one tank as a reserve or switch tanks when one runs low, all without missing a beat.

Installation & Maintenance: Installation is user-friendly – requires a 69 mm circular cutout in a suitable location (deck or engine bay) and screws to secure the flange. Ensure each tank’s fuel line is connected to the labeled inlets and the engine’s feed line to the outlet port. For maintenance, periodically rotate the selector through all positions to keep the internal valve moving freely, and inspect the O-ring seals annually. Thanks to its stainless construction, upkeep is minimal – a rinse with fresh water after heavy use will keep it in top condition.

• Enables operation with dual fuel tanks, perfect for long-range boats or twin-engine setups sharing a fuel supply
• Enhanced safety: “Closed” mode acts as a fuel shutoff valve to prevent flow during emergencies, maintenance, or off-season storage
• Optimized balance: Lets you stabilize your boat’s trim by alternating fuel consumption between port and starboard tanks
• Quick control: Change the active tank with a single turn – no need to stop or manually swap fuel lines during a voyage
• Premium build: High-quality materials and components ensure reliable, leak-free performance and a long service life even under harsh marine conditions