
Reading Locked Every Compartment. Now Cover the Fuel Cap.
Tools Secured ✓ • Body Locked ✓ • Fuel Cap Wide Open ✗
Reading service bodies come with locks on every door and compartment. But the Ford or Ram chassis underneath has a completely exposed, unprotected fuel cap. The Work Truck Fuel Vault is the armored locking cover that shields the entire fuel filler area on your Reading-equipped work truck.
Founders Edition pricing — starting at $99.95 (Save up to $50)

The Exposed Fuel Cap on Every Reading Truck
Reading builds bodies with security in mind. But the chassis fuel system is Ford's or Ram's responsibility — and they left it completely unprotected.
- Ford and Ram chassis cabs ship with zero fuel cap protection from the factory
- Reading body locks protect tools and cargo — nothing covers the diesel fuel cap
- Thieves know Reading trucks carry full tanks and expensive tools — double the target
- A single siphoning costs $500–$1,000 in fuel plus downtime and delays
- Aftermarket locking gas caps are defeated in seconds with basic pliers
The Armored Fuel Cap Cover Built for Reading Trucks
The Work Truck Fuel Vault covers and locks the entire fuel filler area — not just the cap. Purpose-built for the chassis under your Reading body.
- Armored door covers the entire fuel filler area — cap, neck, and access point
- Compatible with all Reading service body models — zero interference
- Bolt-on install in 8–15 minutes — no drilling, cutting, or body modifications
- Purpose-built for Ford F-350–F-600, E-Series, F53 and Ram 3500–5500 chassis
- UV-stable composite — built to outlast the truck
- 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 Reading Truck Needs a Fuel Cap Cover
Contractors
Reading Classic II on an F-450. Tools locked. Fuel cap wide open. The Fuel Vault closes that gap.
Municipal Fleets
City and county Reading trucks parked in open yards overnight. Cover the fuel cap.
Utility Crews
Reading CSV enclosed bodies on Ram 5500. Lock the fuel like you lock the equipment.
Reading Dealers
Bundle the Fuel Vault with every Reading upfit. Instant upsell with real value.
Fleet Managers
Standardize fuel cap covers across your entire Reading fleet. Volume pricing available.
Remote Jobsites
Reading trucks at remote construction and utility sites need fuel protection that works 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 in seconds | High — armored composite, torx fasteners |
| Covers Fuel Filler Area | No — cap only | Yes — full hatch coverage |
| Prevents Siphoning | Partial — hose can bypass | Yes — sealed cover blocks all access |
| Reading Compatible | Generic / universal fit | Purpose-built for Ford & Ram chassis under Reading |
| Install Time | 1 minute screw-on | 8–15 min bolt-on (one-time, no drilling) |
| 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 in seconds
High — armored composite, torx fasteners
Covers Fuel Filler Area
No — cap only
Yes — full hatch coverage
Prevents Siphoning
Partial — hose can bypass
Yes — sealed cover blocks all access
Reading Compatible
Generic / universal fit
Purpose-built for Ford & Ram chassis under Reading
Install Time
1 minute screw-on
8–15 min bolt-on (one-time, no drilling)
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 Reading service bodies?
Yes. The Fuel Vault mounts to the Ford or Ram chassis at the fuel filler area — not the Reading body. It fits any Ford F-350 through F-600, E-Series, or Ram 3500–5500 chassis with any Reading body.
Will it interfere with Reading compartment doors?
No. The Fuel Vault mounts near the cab at the fuel filler neck. It does not touch or interfere with any Reading body compartments, doors, or rear access.
What Reading models does it work with?
All of them — Classic II, SL Service Body, CSV Enclosed, Landscaper, and more. The Fuel Vault mounts to the truck chassis, not the body.
Why doesn't Reading include a fuel cap cover?
Reading builds the service body. The fuel cap is on the truck chassis from Ford or Ram. Neither OEM includes any fuel cap protection — the Fuel Vault fills that gap.
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 Reading Truck — Order Now
Reading locked every compartment. The Fuel Vault covers the one thing they couldn't.
Secure checkout • Free US shipping • No charge until your order ships
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