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RDS 20 Gallon Auxiliary Diesel Fuel Tank

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SKU:RDS74551

RDS 20 Gallon Auxiliary Diesel Fuel Tank

Low Profile
DOT Approved
Pressure Tested
Anti-Slosh Baffles

$699.99

~~$849.99~~ $699.99

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Features

Durable Construction: Made from corrosion-resistant aluminum for long-lasting performance
DOT Approved: Complies with safety standards for transporting fuel on the highway
Heavy-Duty Build: Fully welded seams ensure strength and durability
Safety Tested: Pressure tested to ensure leak-free performance
Auxiliary Fuel System: Designed for gravity feed diesel applications when installed with a compatible kit
Slosh Reduction: Built-in baffles minimize fuel movement during transport
Enhanced Security: Lockable gas cap helps prevent unauthorized access

Specs

Item Number: 74551
Brand: RDS
Capacity: 20 gallons
Shape: Rectangular
Dimensions: 48 in. L x 20 in. W x 7 in. H
Material: Aluminum
Finish: Diamond Plate
Mounting Hardware Included: Yes
DOT Approved: Yes
Auxiliary Tank Fuel Type: Diesel
Product Weight: 21
Manufacturer's Warranty: 12 months parts / 12 months labor

Common Applications

Extending fuel range for diesel pickup trucks

Towing applications including trailers and fifth wheels

Long-distance driving and travel

Fleet and service trucks requiring auxiliary fuel capacity

Backup fuel storage for diesel vehicles

Frequently Asked Questions

Q: What is this tank designed for?
A: This tank is designed exclusively for auxiliary diesel fueling, allowing you to extend your vehicle’s driving range through a gravity feed system.

Q: Can this tank be used for gasoline?
A: No. This tank is designed for diesel fuel only.

Q: Does this tank include a pump?
A: No. This tank is designed for gravity feed use and does not require a pump.

Q: How does the auxiliary system work?
A: When installed with a Diesel Gravity Feed Install Kit, the tank gravity feeds diesel fuel into your truck’s factory fuel tank as fuel is consumed.

Q: Is this tank DOT approved?
A: Yes. This tank is DOT approved for transporting diesel fuel when properly installed and used.

Q: Will this tank rust over time?
A: No. The tank is constructed from heavy-duty aluminum, which resists rust and corrosion.

Q: Does the tank have internal baffling?
A: Yes. Built-in baffles help reduce fuel movement during transport, improving stability and safety.

Q: What vehicles will this tank fit?
A: This tank features a low-profile rectangular design that fits many truck beds, but fitment should be verified based on your specific vehicle dimensions.

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Product Description

The RDS 20-gallon auxiliary diesel fuel tank is a compact solution designed to extend the driving range of diesel trucks without sacrificing bed space. Built from heavy-duty no-rust aluminum with fully welded seams, this tank delivers long-lasting durability and corrosion resistance for both daily use and demanding applications.

Designed specifically for auxiliary fueling, this tank gravity feeds diesel into your truck’s factory fuel tank when installed with an Auxiliary Diesel Gravity Fee Installation Kit (sold separately). Its low-profile rectangular design allows it to fit in tight spaces, making it ideal for trucks used for towing, hauling, or long-distance travel.

Engineered for safety and reliability, this tank includes anti-slosh baffles to reduce fuel movement during transport and a lockable cap to help prevent tampering.

Each tank is cleaned and pressure tested before shipping to ensure leak-free performance and dependable operation.

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RDS 20 Gallon Auxiliary Diesel Fuel Tank