
E-ONE Fire Truck Fuel Door — Protect Every Apparatus
A Fire Truck Without Fuel Can't Save Anyone. Lock It.
E-ONE (Emergency One) fire trucks and rescue apparatus built on the Ford F-550 chassis ship with completely exposed fuel caps. The Work Truck Fuel Vault adds an armored locking fuel door — so your apparatus is always fueled and ready to respond.
Founders Edition pricing — starting at $139.95 (Save up to $60)

Fire Truck Fuel Is Unprotected
E-ONE apparatus on the Ford F-550 chassis inherit Ford's exposed fuel filler area. That's a vulnerability for any vehicle — but for a fire truck, it's a public safety risk.
- Ford F-550 chassis ships with no factory locking fuel door
- Fire stations and staging areas are accessible to the public
- Fuel theft directly impacts emergency response capability
- Fuel contamination can disable an apparatus during a call
- E-ONE apparatus are high-value targets for fuel siphoning
- Fire trucks sit idle for hours — plenty of time for thieves
Lock the Fuel on Every E-ONE Apparatus
The Fuel Vault adds the armored locking fuel door that Ford and E-ONE didn't. Purpose-built for the Ford F-550 chassis — the same chassis your E-ONE apparatus is built on.
- Armored locking door covers the entire fuel filler area
- Tumbler lock + security torx — authorized access only
- Direct fit on Ford F-550 chassis used by E-ONE apparatus
- Bolt-on in 8–15 minutes — no drilling, no cutting, no warranty risk
- High-strength composite survives jobsite and fireground abuse
- Made in the USA with Limited Lifetime Warranty

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.
Protect Fuel on Every Apparatus
Fire Departments
Lock fuel on every E-ONE apparatus in your fleet.
EMS / Rescue
Protect rescue unit fuel at stations and remote staging.
Training Facilities
Apparatus at training sites need fuel security too.
Volunteer Departments
Volunteer stations with limited security need locked fuel.
Apparatus Dealers
Add fuel security to every E-ONE delivery.
Wildland / Brush
Brush trucks staged in remote areas are easy targets.
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
Does the Fuel Vault fit E-ONE fire trucks?
Yes. The Fuel Vault fits E-ONE (Emergency One) apparatus built on the Ford F-550 chassis, including the Aluminum Box Apparatus, mini pumpers, and rescue units.
Why do fire trucks need a locking fuel door?
Fire trucks parked at stations, training facilities, and remote staging areas are vulnerable to fuel theft and contamination. An apparatus that can't respond because of stolen or contaminated fuel is a public safety risk.
Will it work with other fire apparatus manufacturers?
Yes. Any fire apparatus built on a supported chassis (Ford F-350 through F-600, E-Series, or Ram 3500–5500) is compatible with the Fuel Vault.
How does it install on a fire truck?
Bolt-on installation in 8–15 minutes. No drilling or cutting required. Uses existing factory mounting points on the chassis.
How much does it cost?
Starting at $139.95 with free shipping. Volume pricing available for departments ordering multiple units.
What about warranty?
Limited Lifetime Warranty and 30-day money-back guarantee on every Fuel Vault.

Protect Fire Truck Fuel — Starting at $139.95
Locking fuel door for E-ONE fire trucks. Bolt-on. No drilling. Lifetime warranty. Free shipping.
Secure checkout • Free US shipping • No charge until your order ships
