Work truck at jobsite needing fuel theft protection
Stop Fuel Theft

Work Truck Fuel Theft Protection That Works

$500–$1,000 Per Theft Event. $99.95 to Stop It.

Fuel theft costs fleet operators thousands per year. Your work truck's fuel cap is completely exposed — no door, no lock, no protection. The Work Truck Fuel Vault is the fuel theft protection that actually works.

Secure CheckoutFree US ShippingLifetime Warranty30-Day Guarantee

Founders Edition pricing — starting at $99.95 (Save up to $50)

Fuel Theft Costs Real Money

Every fuel theft event costs $500–$1,000 in stolen fuel plus crew downtime, emergency fueling, and schedule disruption.

  • Commercial trucks carry 40–68 gallons of diesel — worth $200–$350
  • Thieves siphon a full tank in under 5 minutes with a simple hose
  • Fuel caps on chassis cabs are completely exposed from the factory
  • Morning downtime costs $500+ when a crew arrives to an empty tank
  • Multiple theft events per year add up to thousands in losses
  • Locking gas caps provide false security — defeated in seconds

Real Fuel Theft Protection

The Work Truck Fuel Vault is the armored locking fuel door that stops fuel theft on your work truck. Not a cap, not a camera — a physical barrier.

  • Armored door covers the entire fuel filler area — cap, neck, access
  • Tumbler lock + security torx — no gripping, prying, or picking
  • Completely blocks siphoning — no hose can reach the filler neck
  • Prevents contamination — sugar, water, and debris can't enter
  • Bolt-on in 8–15 minutes — no drilling, cutting, or modifications
  • Pays for itself after preventing a single theft event
Ford F-550 with Knapheide service body — the fuel cap area that the factory left exposed
Armored • Locking • Bolt-On

The Part The Factory Forgot

The Work Truck Fuel Vault is an armored, locking fuel door that covers the entire fuel access area on your work truck. No more exposed caps. No more easy targets.

Armored, locking fuel door for diesel and gas work trucks
Fits Ford F-350 through F-600, E-Series, F53 & Ram 3500–5500
Installs in 8–15 minutes — no drilling or cutting
High-strength, UV-stable composite built for jobsite abuse
Proudly designed and manufactured in Sarasota, FL, USA

Why Didn't This Exist Before?

Despite billions lost to fuel theft every year, nobody built a real solution for commercial work trucks. Here's why.

"Good Enough" Thinking

The industry defaulted to cheap aftermarket locking gas caps. A $15 key-locked cap was considered good enough — until thieves proved otherwise with a pair of pliers.

Upfitters Focus on the Body, Not the Cap

Manufacturers like Knapheide and Reading engineer every compartment lock on the service body — but the chassis fuel pocket belongs to Ford or Ram. Nobody owned the gap.

The Zero-Drill Engineering Problem

Consumer billet doors are made for flat pickup beds. The recessed fuel pocket on a commercial chassis is a completely different geometry — and drilling risks voiding the chassis warranty.

The Cost Was Just "Absorbed"

Fleets treated fuel theft like weather damage. A $500 siphoning hit got buried in operating expenses. Without a purpose-built product available, the problem was simply accepted.

The Work Truck Fuel Vault is the industry's first drop-in armored fuel door that uses existing factory mounting points. No drilling. No cutting. No warranty risk.

Fuel Theft Protection for Every Application

Contractors

Jobsite theft is #1. Lock your fuel and keep your crew working.

Fleets

Eliminate fuel shrinkage across your entire fleet. Real ROI.

Government

Protect taxpayer-funded fuel with armored fuel doors.

Utility

Remote locations, overnight parking — lock the fuel.

Upfitters

Include fuel theft protection on every chassis cab delivery.

Landscapers

Your trucks park outside every night. Protect the fuel.

Chassis Compatibility

Purpose-built for the most popular commercial chassis platforms in the industry.

Ford

Super Duty & Commercial Chassis

  • F-350 Chassis Cab
  • F-450 Chassis Cab
  • F-550 Chassis Cab
  • F-600 Chassis Cab
  • E-350 / E-450
  • F53 Workhorse

Ram

Chassis Cab Heavy Duty

  • Ram 3500 Chassis Cab
  • Ram 4500 Chassis Cab
  • Ram 5500 Chassis Cab

Our Guarantee

Limited Lifetime Warranty

Built to last. Warranted against defects in material and workmanship for the life of the vehicle on which it was originally installed.

30-Day Money Back

Not satisfied? Return within 30 days of receipt for a full refund. No questions asked.

Free Replacements

If your Fuel Vault is defective under normal use within the warranty period, we replace it at no charge.

Frequently Asked Questions

How common is work truck fuel theft?

Very common. The National Insurance Crime Bureau reports over $1 billion in fuel theft annually in the US. Commercial trucks with exposed fuel caps are the #1 target.

How does the Fuel Vault protect against fuel theft?

The Fuel Vault is an armored locking door that covers the entire fuel filler area. A tumbler lock and security torx fasteners prevent unauthorized access. Thieves can't grip, pry, or siphon.

Why not just use a locking gas cap?

Locking gas caps are defeated with pliers in seconds. They only protect the cap — not the filler neck. The Fuel Vault covers and locks the entire area.

What trucks does it fit?

Ford F-550, F-600, E-350, E-450, and Ram 5500 chassis cabs with any body type.

How long does installation take?

8–15 minutes with basic hand tools. No drilling or cutting.

How much does it cost?

From $99.95 with free shipping. Pays for itself after one prevented theft.

Is there a warranty?

Limited Lifetime Warranty and 30-day money-back guarantee.

Construction worker inspecting work truck fuel system

Protect Your Fuel — Starting at $99.95

Work truck fuel theft protection that pays for itself. Armored. Locking. Bolt-on. Lifetime warranty.

Secure checkout • Free US shipping • No charge until your order ships