Chassis cab work truck needing a lockable fuel hatch
Lockable Fuel Hatch

Your Truck Needs a Fuel Hatch

Hinged • Lockable • Armored • Bolt-On in 15 Minutes

Passenger cars have fuel hatches. Work trucks don't. The Work Truck Fuel Vault is the lockable fuel hatch built specifically for commercial chassis cabs — armored, tamper-resistant, and easy to install.

Secure CheckoutFree US ShippingLifetime Warranty30-Day Guarantee

Founders Edition pricing — starting at $139.95 (Save up to $60)

No Fuel Hatch From the Factory

Every passenger vehicle has a fuel hatch. But the commercial trucks that carry the most valuable fuel loads? Nothing.

  • Chassis cab trucks ship without any fuel hatch or door
  • The fuel cap is completely exposed on the side of the truck
  • No factory option or OEM accessory to add a fuel hatch
  • Exposed filler areas invite theft, siphoning, and contamination
  • Weather, road debris, and dirt collect around the unprotected filler
  • Locking caps don't provide the coverage of a proper fuel hatch

The Fuel Hatch Solution

The Work Truck Fuel Vault is the aftermarket fuel hatch that fills the gap. Armored, lockable, bolt-on.

  • Hinged armored hatch covers the entire fuel filler area
  • Tumbler lock + security torx fasteners — tamper-resistant
  • UV-stable composite withstands outdoor commercial use
  • Bolt-on in 8–15 minutes — no drilling or cutting
  • Fits Ford F-550, F-600, E-350, E-450, and Ram 5500
  • Made in the USA — Sarasota, Florida
Ford F-550 with Knapheide service body — the fuel cap area that the factory left exposed
Armored • Locking • Bolt-On

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.

Armored, locking fuel door for diesel and gas work trucks
Fits Ford F-350 through F-600, E-Series, F53 & Ram 3500–5500
Installs in 8–15 minutes — no drilling or cutting
High-strength, UV-stable composite built for jobsite abuse
Proudly designed and manufactured in Sarasota, FL, USA

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 Work Truck Needs a Fuel Hatch

Contractors

Add the fuel hatch your F-550 should have come with.

Fleets

Hatch every truck in the fleet. One part number, done.

Government

Municipal trucks need hatches over every fuel filler.

Utility

Secure the fuel hatch on every utility truck in the field.

Upfitters

Add a fuel hatch during the body build. Clean, professional.

Landscapers

Dump trucks and chipper trucks — hatch the fuel and work in peace.

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

What is a fuel hatch?

A fuel hatch is a hinged, lockable cover that mounts over the fuel filler access point on a vehicle. The Work Truck Fuel Vault is an armored fuel hatch designed specifically for commercial chassis cab trucks.

Why do work trucks need a fuel hatch?

Commercial chassis cabs have no factory fuel hatch or door. The filler cap sits exposed on the side of the truck. A fuel hatch adds security, weather protection, and a clean appearance.

What trucks does it fit?

Ford F-550, F-600, E-350, E-450, and Ram 5500 chassis cabs.

How does it install?

Bolt-on in 8–15 minutes with basic hand tools. No drilling or cutting.

Does it lock?

Yes — tumbler lock with security torx fasteners.

How much?

From $139.95 with free shipping.

Warranty?

Limited Lifetime Warranty and 30-day money-back guarantee.

Construction worker inspecting work truck fuel system

Add a Fuel Hatch — Starting at $139.95

Lockable fuel hatch for Ford and Ram chassis cabs. Bolt-on. No drilling. Lifetime warranty.

Secure checkout • Free US shipping • No charge until your order ships