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The Part the Factory Forgot

RV Fuel Door Lock — Built-In Security, Factory-Finished Look

Stop looking for aftermarket locks. The RV Fuel Vault has a tamper-resistant keyed lock built into the fuel door — one product, one install, total protection.

The RV Fuel Vault — Locking Fuel-Door Enclosure — locking fuel door for motorhomes

The Problem

  • There is no factory fuel door to lock — your motorhome has no fuel door at all
  • Aftermarket fuel door locks require a fuel door first — which your RV does not have
  • Generic locking gas caps provide minimal security
  • Separate fuel doors and separate locks mean multiple products and mismatched parts
  • No one makes a fuel door WITH a lock for motorhomes — except us

The RV Fuel Vault Solution

  • Integrated solution: fuel door WITH built-in tamper-resistant keyed lock
  • One product, one install — no separate door and lock to buy
  • Factory-finished look and real security in a single bolt-on unit
  • High-strength fiber-filled polymer — UV-proof, weather-proof
  • Bolt-on in 8-15 minutes — no drilling, no cutting
  • Fits all major chassis: Ford E-350, E-450, F-550, F-600, F53, Workhorse, Ram 5500

See the Difference

Exposed cap — no security
Exposed cap — no security
RV Fuel Vault installed
RV Fuel Vault installed

Why You Need a Locking Fuel Door

Lead with finish. End with security.

Factory-Finished Look

Eliminates the exposed plastic cap. Your rig finally looks production complete.

Fuel Theft Prevention

Keyed lock stops siphoning at campgrounds, rest stops, and storage facilities.

Contamination Defense

Prevents sugar, water, or foreign substances from being added to your fuel tank.

Vandalism Protection

Tamper-resistant design deters opportunistic damage to your fuel system.

Installs in 8–15 Minutes — No Drilling, No Cutting

8–15 Minutes

Average install time

Basic Hand Tools

No special equipment needed

100% Reversible

No drilling, no cutting, no mods

Frequently Asked Questions

Common questions about The RV Fuel Vault

Not Sure If It Fits Your Rig?

Our Fitment Finder checks your exact year, make, model, and floorplan in seconds.

Find My Fit

Order Today — Starting at $84.95

Single Door, Set of 2, or 3-Pack · Free Shipping · Limited Lifetime Warranty · 30-Day Guarantee

Order My RV Fuel Vault

Proudly Made in the USA · Patent Pending 19/632,042 · Est. delivery by July 4, 2026