Marine Fuel Bladders — 25 to 500 Gallons, Plus Custom Sizes
Run farther. Fish longer. Skip the fuel dock line.
UFD Fuel Bladders from 50-500 gallons
We also special order larger or custom sizes.
A marine fuel bladder is a flexible, collapsible tank that rides on deck full and folds flat when empty. Tournament boats use them to reach far grounds without a fuel stop. When your trip is done, it stows in a lazarette.
And here’s the part nobody else offers: we fill it for you. UFD delivers ethanol-free gas or premium diesel dockside, on your schedule, straight into your bladder before you leave. Buy the bladder, and your fueling problem is solved end to end.
SIZES & DIMENSIONS
Two styles: Pillow (classic rectangular, lowest cost per gallon) and Space Saver (compact footprint for cockpits and bow decks).
Capacity | Pillow Style (L × W × H) | Space Saver (L × W × H) |
|---|---|---|
25 gal | 33″ × 36″ × 9″ | Call for sizing |
50 gal | 40″ × 50″ × 9″ | 30″ × 38″ × 12″ |
100 gal | 50″ × 64″ × 12″ | 50″ × 39″ × 12″ |
120 gal | 53″ × 61″ × 12″ | Call for sizing |
150 gal | 60″ × 72″ × 12″ | 48″ × 48″ × 15″ |
200 gal | 59″ × 95″ × 15″ | 68″ × 68″ × 10″ |
250 gal | 64.5″ × 90″ × 15″ | 68″ × 68″ × 13″ |
300 gal | 64.5″ × 96″ × 15″ | 68″ × 68″ × 15″ |
- Puncture resistance: withstands 225 lbs of force from a screwdriver-point impact and 1,800 lbs from a blunt (ball) impact (ASTM D751).
- Tear strength: 40 lbs tongue-tear in both directions — it resists a small cut turning into a big one.
- Tensile strength: 700 lbs per 1-inch strip of fabric.
- Abrasion: rated to 12,000 cycles (ASTM D3884) — built to live on non-skid.
- Temperature range: stays flexible to −50°F – rated for continuous service at 160°F.
-
Fuel-tight: the same membrane family is used for fuel containment in flexible tanks up to 210,000 gallons, fuel diffusion through the fabric is under 0.06 fl-oz per square foot per day
FAQ
Gas or diesel?
Both. The bladders are compatible with gasoline, diesel, and other petroleum fuels — material and fittings are matched to the fuel type, so tell us what you run when you order.
How long will it last?
With proper care, typically 5–10 years or more, backed by a full five-year warranty. Lifespan depends mostly on UV exposure and storage habits.
How do I store it between trips?
Drain it, clean it, fold it loosely, and stow it somewhere cool and dry out of direct sunlight, away from sharp edges. It folds flat — a folded bladder fits in a lazarette or dock box.
Can UFD fill it?
