Your Work Truck Needs a Fuel Cover
Armored • Locking • Built for Commercial Trucks
The fuel filler on your chassis cab truck is completely exposed. No door, no cover, no shield. The Work Truck Fuel Vault is the armored fuel cover that protects the entire filler area from theft, siphoning, and contamination.
Founders Edition pricing — starting at $139.95 (Save up to $60)
Exposed Fuel Fillers Are Everywhere
Look at any work truck on the road. The fuel cap is sitting right there on the side, completely exposed. No cover, no protection.
- Every chassis cab truck ships with an exposed, uncovered fuel filler
- No factory fuel cover exists for Ford or Ram commercial trucks
- Exposed fillers invite fuel theft, siphoning, and vandalism
- Road debris, water, and contaminants collect around the filler neck
- Locking caps only cover the cap — not the filler area
- Unprotected fuel fillers are a fleet-wide liability
The Fuel Cover That Covers Everything
The Work Truck Fuel Vault is a full armored fuel cover — not just a cap, not just a lock, but complete filler area protection.
- Armored cover shields the cap, filler neck, and entire access area
- Tumbler lock with security torx — tamper-resistant
- UV-stable composite withstands years of outdoor exposure
- Bolt-on in 8–15 minutes — zero drilling or cutting
- Works with every body type and upfitter configuration
- Made in the USA — Sarasota, Florida
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.
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.
Who Needs a Fuel Cover
Contractors
Cover the exposed fuel filler on your service truck.
Fleets
Fleet-wide fuel cover standardization — one part, every truck.
Government
City trucks need covered fuel fillers. The Fuel Vault delivers.
Utility
Shield the fuel filler from road debris and tampering.
Upfitters
Add a fuel cover during the body build for a professional finish.
Owner-Operators
One fuel cover, done forever. Protect your investment.
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
What does the fuel cover protect?
The Fuel Vault covers the entire fuel filler area — the cap, filler neck, and surrounding access point. It shields against theft, siphoning, contamination, and weather.
Is it just a cap cover?
No. A cap cover only covers the cap. The Fuel Vault is a full fuel cover — an armored door that covers the entire filler area.
What trucks does it fit?
Ford F-550, F-600, E-350, E-450, and Ram 5500 chassis cabs.
How does it install?
Bolt-on in 8–15 minutes. No drilling or cutting required.
Does it lock?
Yes — tumbler lock with security torx fasteners.
How much?
From $139.95 with free shipping.
Warranty?
Limited Lifetime Warranty and 30-day money-back guarantee.
Add a Fuel Cover — Starting at $139.95
Armored fuel cover for Ford and Ram chassis cabs. Bolt-on. No drilling. Lifetime warranty.
Secure checkout • Free US shipping • No charge until your order ships