New 500-Gallon Double Wall Diesel Tank for Sale

If you’re looking for a new 500-gallon double wall diesel tank that meets safety regulations, protects your fuel investment, and delivers long-term durability, you’re in the right place.

As an industry fuel storage expert, I can confidently say that a 500-gallon double wall tank is one of the most reliable and regulation-compliant solutions for commercial diesel storage.

At californiapropanedepot.com, we provide high-quality, code-compliant diesel tanks designed for contractors, fleet operators, farmers, and industrial businesses that demand performance and safety.

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Why Choose a 500-Gallon Double Wall Diesel Tank?

Built-In Secondary Containment for Maximum Safety

A double wall diesel tank features an inner tank that holds the fuel and an outer containment wall that prevents leaks from reaching the environment. This design meets secondary containment requirements set by the Environmental Protection Agency under SPCC (Spill Prevention, Control, and Countermeasure) regulations.

This means:

• Reduced environmental liability

• No need for external containment basins

• Lower compliance risk

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EPA & Fire Code Compliance

Our tanks are manufactured to meet Underwriters Laboratories UL-142 standards, the gold standard for above-ground steel fuel tanks.

UL-142 certification ensures:

• Structural integrity

• Fire resistance

• Leak prevention performance

• Proper venting and pressure control

This is especially important in regulated states like California, where fuel storage must comply with local fire marshal and environmental standards.

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Ideal Capacity for Commercial Applications

A 500-gallon diesel tank is perfect for:

• Construction job sites

• Fleet fueling operations

• Agricultural equipment storage

• Backup generator systems

• Industrial facilities

It provides sufficient storage without requiring the infrastructure of larger bulk tanks.

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Key Features of Our New 500-Gallon Double Wall Diesel Tank

Heavy-Duty Steel Construction

• Built from high-grade carbon steel

• Precision welded seams

• Reinforced structural design

• Long service life (15–30 years with proper maintenance)

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UL-142 Certified Design

Each tank is engineered to meet UL-142 above-ground storage tank standards, ensuring compliance and peace of mind.

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Lockable Fill Caps & Anti-Theft Protection

Protect your fuel from contamination and theft with:

• Lockable fill ports

• Secure pump mounting plates

• Tamper-resistant fittings

Fuel theft is a growing issue — built-in security helps protect your bottom line.

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Forklift Skids for Easy Transport

Our 500-gallon tanks are designed for mobility:

• Integrated forklift pockets

• Skid-mounted base

• Jobsite-friendly design

You can relocate the tank safely as your project evolves.

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Weather-Resistant Industrial Coating

The exterior is coated with industrial-grade paint to resist:

• UV exposure

• Corrosion

• Rain and moisture

• Harsh jobsite conditions

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Technical Specifications

While exact specs may vary slightly by manufacturer, typical configurations include:

• Capacity: 500 gallons

• Construction: Double wall steel

• Standard: UL-142

• Orientation: Horizontal above-ground

• Finish: Powder-coated or industrial enamel

• Fittings: NPT threaded ports

• Vent Port: Integrated venting system

• Optional Add-ons:

  • 12V or 115V fuel transfer pump

  • Digital fuel gauge

  • Hose reel

  • Automatic shutoff nozzle

For precise dimensions and availability, visit californiapropanedepot.com or request a quote.

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Double Wall vs. Single Wall Diesel Tanks – What’s the Difference?

If you’re storing diesel commercially, a double wall tank is the smarter long-term investment.

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Applications for 500-Gallon Double Wall Diesel Tanks

Construction Sites

Fuel heavy equipment such as:

• Excavators

• Skid steers

• Loaders

• Generators

On-site fueling increases productivity and reduces downtime.

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Fleet Fueling

Small to mid-size fleets benefit from on-site diesel access:

• Delivery trucks

• Service vehicles

• Landscaping fleets

Control fuel costs and monitor usage more effectively.

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Agriculture & Farming

Keep tractors, harvesters, and irrigation systems fueled without frequent supplier trips.

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Emergency Backup Power Systems

Hospitals, data centers, and commercial buildings use diesel generators. A 500-gallon tank provides reliable emergency reserves.

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Why Buy from CaliforniaPropaneDepot.com?

When investing in fuel storage equipment, expertise matters.

At californiapropanedepot.com, you benefit from:

Industry Expertise

We understand fuel storage regulations, permitting challenges, and compliance standards. We help you choose the right tank the first time.

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Competitive Pricing

We offer direct supplier pricing without unnecessary markups.

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Fast Shipping & Pickup Options

Serving contractors and businesses who need equipment quickly.

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Compliance Guidance

We can help you understand requirements tied to:

• Environmental Protection Agency SPCC rules

• Local fire department regulations

• Insurance requirements

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Frequently Asked Questions

Do I need a permit for a 500-gallon diesel tank?

In many jurisdictions, yes. Requirements vary by state and municipality. Always consult your local fire marshal and environmental agency.

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Is a double wall tank required in California?

In most commercial applications, double wall tanks are strongly recommended and often required for environmental compliance.

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Can this tank be used for gasoline?

No. UL-142 diesel tanks are typically rated for diesel fuel and certain oils only. Gasoline requires different tank specifications.

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How long does a steel diesel tank last?

With proper maintenance and inspection, a double wall steel tank can last 20+ years.

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Does it include a pump?

Pumps are typically optional add-ons. We offer 12V and 115V transfer systems based on your operational needs.

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Get a Quote on Your New 500-Gallon Double Wall Diesel Tank Today

If you need safe, compliant, and durable diesel storage, a new 500-gallon double wall diesel tank is a smart investment for your business.

Visit californiapropanedepot.com today to:

• Request pricing

• Check availability

• Customize your tank configuration

• Speak with a fuel storage expert

Protect your fuel. Protect your business. Invest in compliant diesel storage built to perform.