Description
Portable Marine Fuel Tank 12L (3 Gallon) — HDPE Rectangular Outboard Tank
Product Overview
The iFJF 12L (3-Gallon) Portable Marine Fuel Tank is a rugged, UV-resistant HDPE fuel solution for small outboard boats, dinghies, tenders, and portable generator setups. Whether you're running a 4 HP kicker motor or need a lightweight auxiliary tank for your fishing boat, this compact rectangular tank delivers reliable fuel storage in a space-efficient package.
Constructed from heavy-duty high-density polyethylene, this tank withstands sun exposure, salt spray, and the occasional bump against the gunwale. The integrated carry handle makes transport from dock to boat effortless, and the standard 1/4" NPT fuel outlet fitting connects to most Mercury, Yamaha, Johnson, and Evinrude fuel line assemblies. CARB-compliant design meets EPA evaporative emission standards.
Key Features
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12L / 3-Gallon Capacity: Ideal for small outboards (2-15 HP), dinghy tenders, kayak motors, and portable generators — roughly 2-4 hours of runtime at cruising speed.
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UV-Resistant HDPE Construction: Won't rust, corrode, or degrade in marine environments — significantly lighter than metal tanks.
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Integrated Carry Handle: Comfortable molded handle for easy one-handed transport even when full (~25 lbs with fuel).
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Standard 1/4" NPT Outlet: Universal fitting accepts most marine fuel line connectors from Mercury, Yamaha, Johnson, Evinrude, Suzuki, Tohatsu.
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CARB / EPA Compliant: Meets California Air Resources Board and EPA evaporative emission standards for portable marine fuel tanks.
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Vented Cap: Manual vent screw on cap prevents pressure buildup and allows fuel to flow freely during operation.
Specifications
| Specification |
Value |
| Capacity |
12 Liters / 3.17 Gallons |
| Material |
High-Density Polyethylene (HDPE) |
| Fuel Outlet |
1/4" NPT Female |
| Shape |
Rectangular with Molded Handle |
| Color |
Red |
| Compliance |
CARB / EPA Evaporative Emissions |
| Approximate Runtime |
2-4 Hours (4-15 HP Outboard at Cruise) |
Compatibility
| Engine Brand |
Connector Type |
Notes |
| Mercury / Mariner |
Mercury Bayonet / 1/4" NPT |
Use with Mercury fuel line assembly |
| Yamaha |
Yamaha Clip / 1/4" NPT |
Use with Yamaha fuel line assembly |
| Johnson / Evinrude |
OMC Clip / 1/4" NPT |
Use with Johnson/Evinrude fuel line |
| Suzuki / Tohatsu / Honda |
Brand-Specific / 1/4" NPT |
Matches standard 1/4" NPT fittings |
Frequently Asked Questions
Q: Does this tank come with a fuel line?
A: No, this listing is for the fuel tank only. We also offer a combo kit that includes a 10 ft fuel line with primer bulb — search our store for the complete kit.
Q: How long will 3 gallons run my outboard?
A: As a rough guide: 4 HP ≈ 3-4 hours, 9.9 HP ≈ 1.5-2 hours, 15 HP ≈ 1-1.5 hours at cruising speed. Actual runtime varies with load, hull type, and throttle setting.
Q: Can I use this tank with ethanol-blended fuel (E10)?
A: Yes, the HDPE material is compatible with E10 (10% ethanol) fuel. We recommend using marine-grade fuel stabilizer and draining the tank for long-term storage to prevent phase separation.
Q: Is this tank Coast Guard approved?
A: This tank meets applicable USCG, CARB, and EPA requirements for portable marine fuel tanks. It is designed for above-deck use in well-ventilated areas.
Q: Can I use this for a portable generator?
A: Yes — the 1/4" NPT outlet and 3-gallon capacity make it suitable for portable generators, pressure washers, and other small gas-powered equipment.
