Someone's Stealing Diesel from Your ATG Fleet Trucks.
$500–$1,000 per incident • Exposed fuel cap • No factory protection
Auto Truck Group builds fleet upfits with security at every level. But the Ford or Ram chassis has a wide-open fuel cap. The Work Truck Fuel Vault stops diesel theft on ATG-upfitted trucks with one bolt-on install.
Founders Edition pricing — starting at $99.95 (Save up to $50)
Why Thieves Target ATG Fleet Trucks
ATG fleet trucks carry full diesel tanks and expensive equipment. The chassis fuel cap is the weakest link.
- Ford and Ram ship chassis cabs with zero fuel cap security
- ATG body locks protect equipment — the fuel cap is wide open
- Fleet trucks parked together multiply the theft opportunity
- Siphoning takes minutes — no noise, no forced entry
- Locking gas caps are defeated in seconds with pliers
- Fuel contamination from tampering destroys injectors
Stop Fuel Theft Across Your ATG Fleet
The Work Truck Fuel Vault makes siphoning physically impossible. Install fleet-wide for complete protection.
- Armored locking door covers the entire fuel filler area
- Tamper-resistant torx fasteners — no quick-remove
- Compatible with all ATG upfit configurations
- Bolt-on in 8–15 minutes per truck — no drilling
- Purpose-built for Ford F-350–F-600, E-Series, F53 and Ram 3500–5500
- Volume pricing for fleet-wide deployment
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.
Where ATG Fleet Trucks Get Hit the Hardest
Fleet Yards
ATG fleet trucks parked together in open lots. One exposed cap makes the whole fleet a target.
Government Lots
ATG-upfitted government trucks in unfenced yards. Easy targets overnight.
Remote Sites
ATG utility trucks at remote power and telecom sites. No cameras, no guards.
Jobsites
ATG contractor trucks at active construction sites. Fuel vanishes overnight.
Dealer Lots
New ATG upfits with full demo tanks. Lock the fuel before delivery.
Overnight Parking
Anywhere ATG trucks park overnight without fuel cap protection is a risk.
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
Locking Fuel Cap vs. Fuel Vault
See how The Work Truck Fuel Vault compares to the alternatives.
| Feature | Locking Fuel Cap | The Work Truck Fuel Vault |
|---|---|---|
| Protection Type | Cap only | Full armored door over entire fuel access |
| Tamper Resistance | Low | High — armored composite, torx fasteners |
| Prevents Siphoning | Partial | Yes — sealed door blocks all access |
| Prevents Contamination | No | Yes — sealed against water and debris |
| ATG Compatible | Generic fit | Purpose-built for chassis under ATG upfits |
| Warranty | None or 90 days | Limited Lifetime Warranty |
Feature comparison between standard locking fuel cap and The Work Truck Fuel Vault
Protection Type
Cap only
Full armored door over entire fuel access
Tamper Resistance
Low
High — armored composite, torx fasteners
Prevents Siphoning
Partial
Yes — sealed door blocks all access
Prevents Contamination
No
Yes — sealed against water and debris
ATG Compatible
Generic fit
Purpose-built for chassis under ATG upfits
Warranty
None or 90 days
Limited Lifetime Warranty
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 are ATG fleet trucks targeted for fuel theft?
ATG-upfitted trucks are high-value targets — full diesel tanks, expensive equipment, and unprotected fuel caps on the OEM chassis.
Does the Fuel Vault stop siphoning on ATG trucks?
Yes. The armored locking door covers the entire fuel filler area, making siphoning physically impossible.
Will it fit any ATG upfit?
Yes. The Fuel Vault mounts to the Ford or Ram chassis, not the body. All ATG configurations are compatible.
How much does fuel theft cost per incident?
A typical siphoning costs $500–$1,000+ in stolen diesel plus downtime across the fleet.
Can it be installed fleet-wide?
Yes. Volume pricing available. Each install takes 8–15 minutes with no drilling.
How much does it cost?
Founders Edition starts at $99.95 with free shipping. Volume discounts for fleets.
Is there a warranty?
Yes — Limited Lifetime Warranty and 30-day money-back guarantee.
Protect Your ATG Fleet's Diesel — Order Now
One siphoning event costs more than the Fuel Vault. Protect the whole fleet.
Secure checkout • Free US shipping • No charge until your order ships