Moeller 32 Gallon Below-Deck Permanent Marine Fuel Tank

Running out of fuel range is one of the quickest ways to shrink a good day on the water, and the Moeller FTA001122BR 32 gallon below-deck fuel tank is built to fix that without eating up your cockpit. This is a permanent, mounted tank designed to live under the deck, so you get real capacity while keeping the space above open for fishing, seating, and storage. For center consoles, skiffs, and other boats where vertical room is tight, its low-profile shape is exactly what the compartment ordered.

The tank holds 32 gallons and uses a belly-style, low-profile body that measures roughly 59.88 inches long by 25.75 inches wide by 6.56 inches high. That long, shallow footprint is the whole point. It lets the tank tuck down into a bilge or under-sole compartment where a taller tank simply wouldn't fit, and it keeps the fuel weight low in the hull, which is good for how the boat sits and rides. At about 36 pounds empty, it's manageable to position during an install while still being tough enough for permanent service.

Construction is where a Moeller tank earns its reputation. The body is seamless roto-molded crosslink polyethylene, a material chosen because it stands up to modern ethanol-blended fuels and won't corrode the way older metal tanks can. There are no seams or welds to fail over time, and the poly won't rust from condensation inside the tank or from a damp bilge outside it. If you've ever dealt with a pinholed metal tank weeping fuel into the bilge, you already understand why a one-piece poly tank is worth it.

This tank is set up to be installed the right way. It ships with a fuel sender so you can wire up an accurate gauge reading at the helm, and it uses molded-in fittings sized for ABYC-compliant low-permeation fuel hose. Meeting the standards matters here. The FTA001122BR is built to EPA 40 CFR 1060 for evaporative emissions and follows ABYC H-24 guidance for gasoline systems, which is the framework your surveyor, insurer, and local inspector will expect a permanent fuel tank to satisfy. Buying a compliant tank up front saves you from headaches later.

Installation is a job worth doing carefully. Because this is a permanent below-deck tank, you'll want to plan for secure mounting, proper strapping, ventilation, and grounding, and you'll route the fill, vent, and supply lines per accepted marine practice. Give yourself room to reach the sender and fittings after the deck goes back down, and dry-fit the tank in its compartment before you commit. When it's done right, a permanent tank like this disappears into the boat and just works, trip after trip.

Who's this tank for? It's for the owner repowering or restoring a boat that needs a fresh fuel supply, and for builders who want dependable capacity without a custom fabrication bill. It's for anyone who's tired of babysitting a corroded metal tank or juggling portable jugs to stretch a day's range. With 32 gallons on board, you spend more time fishing and cruising and less time watching the fuel gauge or planning your next stop at the pump.

It also helps to think about the tank as part of the whole fuel system rather than a standalone part. A clean, compliant tank pairs best with fresh low-permeation hose, a properly sized vent line, a good deck fill, and a water-separating filter between the tank and the engine. When you replace an old tank, it's the ideal moment to inspect and upgrade those connected pieces too, so the entire system is fresh at the same time. That's how you get years of dependable fueling instead of chasing one weak link after another.

The bottom line is simple. If your boat has a low, tight compartment and you want proper permanent fuel capacity that meets today's standards, the Moeller FTA001122BR is a smart, no-drama choice. It's the kind of core component you install once and forget about, which is exactly what you want from the tank that feeds your engine.