Universal Aluminum Auxiliary Fuel Tank

Fuel machines for days with our durable 18 gallon aluminum auxiliary fuel tank. Great for fueling multiple engines and eliminating the need for filling the job. Built from 1/8" aluminum, pressure tested, and guaranteed leak-free, this tank is designed for long-lasting performance. Customize your tank with multiple pickup tube options, venting styles, and gauge configurations to match your specific needs.

Standard Features

• 1/8" Aluminum Construction: Durable, corrosion-resistant material
• Pressure Tested: Guaranteed leak-free
• Threaded Aluminum Cap: Secure, reliable closure
• Single 3/8" FNPT Pickup Tube: Standard configuration (additional tubes available)
• 1/2" FNPT Vent Port: Bung for optional rollover vent (for use with non vented cap)
• 1/4" FNPT Return Port: Fuel vapor return line bung
• CNC Milled Sending Unit Flange: Precision-machined SAE 5 Hole flange for gauges or sending units (gauge or block off plate sold seperately)

Customization Options

• Pickup Tubes: Choose 1 (included), 2, 3, or 4 pickup tubes
• Venting Style: Vented cap (included) or non-vented cap with rollover vent
• Gauge Options: Block off plate (No Gauge), mechanical fuel gauge, or electronic gauge with remote mount housing

Common Applications: Trailer-mounted and vehicle-mounted pressure washing rigs, generators, welders, and contractor equipment.

Specifications

Returns & Warranty

All products are made to spec +/- 1/8" with a 1-year limited workmanship warranty, including welds. Standard items may be returned with approval; custom items are non-returnable unless approved. For full details, see our Return Policy & Warranty.

Legal Notice

Riverside Metalwork auxiliary equipment fuel tanks are not DOT-certified and are intended solely to supply fuel to auxiliary equipment such as pressure washers, generators, welders, and similar equipment, whether stationary, trailer-mounted, or vehicle-mounted.

These tanks are not approved for use as vehicle or marine fuel tanks, bulk fuel storage tanks, or fuel transfer/dispensing tanks, and are not intended to supply fuel to any vehicle or marine engine operating on public roadways or waterways.

The purchaser is responsible for proper installation and compliance with all applicable federal, state, and local laws. Riverside Metalwork disclaims liability for misuse or use outside the intended application.