The Ultimate Guide to Under Bed Auxiliary Fuel Tanks for Pickup Trucks
Auxiliary fuel tanks are essential for pickup truck owners who require additional fuel capacity for long hauls, off-roading adventures, or simply for convenience. These tanks are designed to fit under the bed cover or tonneau cover of your truck, providing a discreet and efficient way to carry extra fuel. In this guide, we will explore various types of under bed auxiliary fuel tanks, their applications, and technical features to help you make an informed decision.
| Type of Tank | Capacity Range | Fuel Types | Key Features | Best For |
|---|---|---|---|---|
| Auxiliary Tanks | 30-100 gallons | Diesel, Gas | Seamless integration with factory systems | Long hauls, off-road adventures |
| Transfer Tanks | 30-70 gallons | Diesel, Gas | Portable, equipped with pump for dispensing fuel | Job sites, remote fuel needs |
| Toolbox Combos | 30-50 gallons | Diesel, Gas | Combines storage and fuel tank, secure storage | Work trucks, utility vehicles |
| Low Profile Tanks | 30-60 gallons | Diesel, Gas | Designed to fit below bedrails, compatible with covers | All pickup models with bed covers |
| Custom Tanks | Varies | Diesel, Gas | Tailored to specific truck models and user needs | Specialized applications |
Types of Under Bed Auxiliary Fuel Tanks
1. Auxiliary Tanks
Auxiliary fuel tanks are designed to add extra fuel capacity to your pickup truck. They directly transfer fuel to the primary tank when needed, ensuring that you have sufficient fuel for long trips. Companies like Transfer Flow and The Fuelbox offer high-quality aluminum auxiliary tanks that can hold anywhere from 30 to 100 gallons of fuel.
2. Transfer Tanks
Transfer tanks are a portable solution for transporting fuel. These tanks often come equipped with a pump for easy dispensing. They are ideal for job sites or remote areas where fuel access may be limited. Tank Retailer provides a variety of transfer tanks that can accommodate both diesel and gasoline.
3. Toolbox Combos
Toolbox fuel tank combos combine the functionality of a toolbox with that of an auxiliary fuel tank. This design maximizes space in your truck bed while providing secure storage for tools and equipment. ATTA Tank offers toolbox combos that are both practical and DOT legal for diesel fuel applications.
4. Low Profile Tanks
Low profile tanks are specifically designed to fit under bed covers and below bedrails. This allows for better aerodynamics and maintains a sleek look for your truck. TankAndBarrel.com lists several options for low profile tanks that cater to various truck models.
5. Custom Tanks
For those with unique needs or specific truck models, custom auxiliary fuel tanks can be fabricated. These tanks are tailored to fit perfectly in your vehicle and often come with specialized features to enhance usability.
Applications of Auxiliary Fuel Tanks
Auxiliary fuel tanks serve several applications, from extending driving range to providing fuel for equipment. Here are some common uses:
- Long-Distance Hauling: For truckers who cover vast distances, an auxiliary tank minimizes the need for frequent fuel stops.
- Off-Roading: Adventurers exploring remote areas can rely on auxiliary tanks to ensure they don’t run out of fuel.
- Job Sites: Construction workers and contractors can use transfer tanks to fuel machinery on-site without frequent trips to the gas station.
- Recreational Vehicles: RV owners can benefit from additional fuel capacity for long road trips or camping excursions.
Technical Features to Consider
When selecting an under bed auxiliary fuel tank, consider the following technical features:
- Material: Most tanks are made from aluminum or steel. Aluminum tanks are lightweight and resistant to corrosion, while steel tanks offer durability.
- Capacity: Ensure the tank’s capacity meets your fuel needs without exceeding your vehicle’s payload limits.
- Compatibility: Check if the tank is compatible with your truck model and any bed covers you might have.
- Transfer System: Look for tanks that offer automatic fuel transfer systems, such as Transfer Flow’s TRAX 4, for hassle-free operation.
| Feature | Auxiliary Tanks | Transfer Tanks | Toolbox Combos | Low Profile Tanks | Custom Tanks |
|---|---|---|---|---|---|
| Material | Aluminum/Steel | Aluminum/Steel | Aluminum | Aluminum/Steel | Varies |
| Capacity Range | 30-100 gallons | 30-70 gallons | 30-50 gallons | 30-60 gallons | Varies |
| Automatic Transfer | Yes | No | Yes | Yes | Depends on Design |
| Compatibility | Most truck models | Portable, various models | Vehicle-specific | Most truck models | Vehicle-specific |
| Security | Standard locking | Portable (may not be secure) | Locking toolbox | Standard locking | Depends on design |
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Conclusion
Under bed auxiliary fuel tanks are a valuable addition for pickup truck owners, providing extra fuel capacity and convenience for various applications. Whether you need an auxiliary tank for long-distance hauling or a transfer tank for job sites, options abound from reputable manufacturers like Tank Retailer, The Fuelbox, Transfer Flow, and ATTA Tank. Understanding the types, applications, and technical features will help you make the best choice for your needs.
FAQ
What is an auxiliary fuel tank?
An auxiliary fuel tank is an additional fuel storage tank installed in a vehicle, designed to increase fuel capacity and extend driving range.
How does a transfer tank work?
A transfer tank is a portable fuel tank that includes a pump. It allows users to dispense fuel into other vehicles or equipment.
Can I install an auxiliary tank myself?
While some truck owners may choose to install an auxiliary tank themselves, it is recommended to have it professionally installed to ensure safety and compliance with regulations.
What materials are auxiliary tanks made from?
Most auxiliary tanks are made from aluminum or steel. Aluminum is lightweight and corrosion-resistant, while steel is durable.
Do I need a special permit for an auxiliary fuel tank?
Regulations vary by state and locality. It’s advisable to check local laws regarding auxiliary fuel tanks and ensure compliance.
How do I know what size tank I need?
Consider your fuel consumption, the distance you typically travel, and your vehicle’s payload capacity when choosing the size of your auxiliary tank.
Are there tanks that fit under tonneau covers?
Yes, many manufacturers, including Tank Retailer and Transfer Flow, offer low-profile tanks specifically designed to fit under tonneau covers.
Can I use an auxiliary tank for both diesel and gasoline?
Some tanks are designed for multiple fuel types, but ensure compatibility before purchasing. Always check the specifications provided by the manufacturer.
What is the average cost of an auxiliary fuel tank?
Prices vary widely based on capacity and features, typically ranging from $300 to $1,500 or more.
What brands offer auxiliary fuel tanks?
Reputable brands include Tank Retailer, Transfer Flow, The Fuelbox, and ATTA Tank, each offering a variety of options to meet different needs.
