Your Work Truck Doesn't Have a Fuel Door
Ford and Ram Don't Include One. Upfitters Don't Add One. We Built One.
Every passenger car has a fuel door. But the Ford F-550, E-450, and Ram 5500 you use for work? No fuel door. No cover. No protection. The Work Truck Fuel Vault adds the fuel door that should have been there from day one.
Founders Edition pricing — starting at $139.95 (Save up to $60)
The Fuel Door That Doesn't Exist
Chassis cab trucks are sold as incomplete vehicles. The body gets finished, the tools get locked, but the fuel cap? Left completely exposed.
- No Ford or Ram chassis cab includes a fuel door from the factory
- The fuel filler cap sits exposed on the side of the truck
- Body upfitters focus on the body — nobody addresses fuel security
- Exposed fuel caps invite theft, siphoning, and contamination
- There is no OEM accessory to add a fuel door after purchase
- This gap has existed for decades with no factory solution
Now There's a Fuel Door
The Work Truck Fuel Vault is the aftermarket fuel door purpose-built for commercial chassis cabs. Armored, locking, bolt-on.
- Armored fuel door covers the entire filler area — cap, neck, and access
- Tumbler lock + security torx — real security, not a plastic cap
- UV-stable composite built to survive years of commercial use
- Bolt-on in 8–15 minutes — no drilling, no cutting
- Works with every body type and upfitter
- 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.
Every Chassis Cab Needs a Fuel Door
Contractors
Your F-550 has every feature except a fuel door. Add one in 15 minutes.
Fleets
Add a fuel door to every truck in your fleet with one part number.
Government
City and county trucks need fuel doors. The Fuel Vault delivers.
Utility
Lock the fuel on every utility truck in the field.
Upfitters
Add a fuel door during the body build. Professional, clean, done.
Service Companies
HVAC, plumbing, electrical — every service truck needs a fuel door.
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
Why don't work trucks come with a fuel door?
Commercial chassis cab trucks are sold as incomplete vehicles. Ford and Ram build the cab and chassis, but the body upfitter finishes the vehicle. Nobody adds a fuel door.
What is the Fuel Vault?
The Work Truck Fuel Vault is a bolt-on locking fuel door designed specifically for commercial chassis cabs. It covers the entire fuel filler area with an armored composite door.
What trucks does it fit?
Ford F-550, F-600, E-350, E-450, and Ram 5500 chassis cabs with any body configuration.
Does it require drilling?
No. Bolt-on install using existing mounting points. 8–15 minutes with basic hand tools.
Does it lock?
Yes. Tumbler lock with security torx fasteners. Tamper-resistant design.
How much does it cost?
Founders Edition starts at $139.95 with free shipping.
Is there a warranty?
Limited Lifetime Warranty and a 30-day money-back guarantee.
Add the Fuel Door — Starting at $139.95
The fuel door Ford and Ram forgot. Bolt-on. Locking. No drilling. Lifetime warranty.
Secure checkout • Free US shipping • No charge until your order ships