Scelzi Locked Every Compartment. Now Cover the Fuel Cap.
Body Secured ✓ • Equipment Locked ✓ • Fuel Cap Wide Open ✗
Scelzi builds some of the toughest service bodies on the West Coast. But the Ford or Ram chassis underneath has a completely exposed fuel cap. The Work Truck Fuel Vault is the armored locking cover that shields the entire fuel filler area on your Scelzi-equipped work truck.
Founders Edition pricing — starting at $99.95 (Save up to $50)
The Exposed Fuel Cap on Every Scelzi Truck
Scelzi builds bodies for durability and security. But the chassis fuel cap is the OEM's responsibility — and they left it wide open.
- Ford and Ram chassis cabs ship with zero fuel cap protection
- Scelzi body locks protect tools — nothing covers the diesel fuel cap
- California fleets are prime targets for organized fuel theft rings
- A single siphoning costs $500–$1,000 in fuel plus missed jobs
- Aftermarket locking gas caps are defeated in seconds
The Armored Fuel Cap Cover for Scelzi Trucks
The Work Truck Fuel Vault covers and locks the entire fuel filler area on the chassis under your Scelzi body.
- Armored door covers the entire fuel filler area — cap, neck, and access point
- Compatible with all Scelzi body models — zero interference
- Bolt-on install in 8–15 minutes — no drilling or cutting
- Purpose-built for Ford F-350–F-600, E-Series, F53 and Ram 3500–5500
- UV-stable composite — built for California sun and outdoor exposure
- Limited Lifetime Warranty and 30-day money-back guarantee
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 Scelzi Truck Needs a Fuel Cap Cover
West Coast Contractors
Scelzi Service body on an F-550. Every compartment locked. Fuel cap? Wide open. Fix that.
California Municipalities
City Scelzi trucks in open yards. Cover the fuel cap like Scelzi covers the tools.
Utility Crews
Scelzi Welder and utility bodies. The fuel needs the same protection as the equipment.
Scelzi Dealers
Bundle the Fuel Vault with every Scelzi upfit for a complete security package.
Fleet Managers
Standardize fuel cap covers across your Scelzi fleet. Volume pricing available.
Remote Jobsites
Scelzi trucks on pipeline and construction sites need fuel protection 24/7.
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 cover over entire fuel access |
| Tamper Resistance | Low — pliers defeat it | High — armored composite, torx fasteners |
| Covers Fuel Filler Area | No | Yes — full hatch coverage |
| Prevents Siphoning | Partial | Yes — sealed cover blocks all access |
| Scelzi Compatible | Generic fit | Purpose-built for Ford & Ram under Scelzi |
| 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 cover over entire fuel access
Tamper Resistance
Low — pliers defeat it
High — armored composite, torx fasteners
Covers Fuel Filler Area
No
Yes — full hatch coverage
Prevents Siphoning
Partial
Yes — sealed cover blocks all access
Scelzi Compatible
Generic fit
Purpose-built for Ford & Ram under Scelzi
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
Does the Fuel Vault fit trucks with Scelzi service bodies?
Yes. The Fuel Vault mounts to the Ford or Ram chassis at the fuel filler area — not the Scelzi body. Fits any Ford F-350 through F-600, E-Series, or Ram 3500–5500 chassis.
Will it interfere with Scelzi compartments or crane mounts?
No. The Fuel Vault mounts near the cab at the fuel filler neck. Scelzi body compartments, crane mounts, and equipment remain unaffected.
What Scelzi models does it work with?
All of them — Service, Welder, Contractor, Flatbed, Stake, and Combo bodies.
How does it install?
Bolt-on in 8–15 minutes with basic hand tools. No drilling, cutting, or body modifications.
How much does it cost?
Founders Edition starts at $99.95 with free shipping.
Is there a warranty?
Yes — Limited Lifetime Warranty and a 30-day money-back guarantee.
Cover the Fuel Cap on Your Scelzi Truck — Order Now
Scelzi locked every compartment. The Fuel Vault covers the one thing they couldn't.
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