Is there a locking fuel door for an RV?

Yes. The RV Fuel Vault is the first locking fuel door made specifically for RVs and motorhomes. It bolts on over the entire filler-neck area and locks with a key in about 15 minutes — no drilling and fully reversible.

Is this the only locking fuel door made for RVs?

Yes. The RV Fuel Vault is the first and only locking fuel door purpose-built for motorhome filler neck geometry.

Does it fit my motorhome?

We cover Ford E-350, E-450, F-550, F-600, F53, Workhorse, and Ram 5500. Use our Fitment Finder.

How hard is installation?

Bolt-on in 8-15 minutes. No drilling, no cutting. Completely reversible.

Limited Lifetime Warranty plus a 30-day satisfaction guarantee.

The Part the Factory Forgot

RV Locking Fuel Door — The Part the Factory Forgot

The first and only locking fuel door engineered for motorhome filler necks. Factory-finished look. Real keyed security. 15-minute bolt-on install.

Order Now — From $139.95

Patent Pending Made in USA Free Shipping Ships July 2026

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

Why a Locking Gas Cap Is Not Enough

✖Every motorhome leaves the factory without a fuel door — just a bare, exposed cap
✖Fuel theft at campgrounds costs RV owners thousands per year
✖Generic truck locking fuel doors do not fit motorhome filler neck geometry
✖Your $100K-$500K motorhome has zero factory fuel security
✖No RV manufacturer offers a locking fuel door as a factory option

Why a Locking Fuel Door Beats a Locking Gas Cap

The only locking fuel door purpose-built for motorhome filler necks
Factory-finished look eliminates the ugly exposed cap
Tamper-resistant keyed lock stops fuel theft, siphoning, and contamination
High-strength fiber-filled polymer — UV-proof, weather-proof, virtually unbreakable
Bolt-on in 8-15 minutes — no drilling, no cutting, no modifications
Fits Ford E-350, E-450, F-550, F-600, F53, Workhorse, and Ram 5500

Before & After: Your RV's Exposed Fuel Cap vs. a Locking Fuel Door

✖ Exposed cap — no security

✓ 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.

How It Installs — 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

Compatible RV Models — Which Locking Fuel Door Fits Your Motorhome?

The RV Fuel Vault locking fuel door fits every major motorhome chassis platform in production today.

Manufacturer	Models / Floorplans
Ford E-350 / E-450	Class C — Coachmen, Thor, Winnebago, Jayco, East to West, Entegra, Forest River, Gulf Stream
Ford F-550 / F-600	Super C — Thor, Dynamax, Entegra, Jayco, Renegade
Ford F53	Class A — Coachmen, Thor, Winnebago, Tiffin, Fleetwood, Newmar
Workhorse W22/W24	Class A — Coachmen Mirada, Thor Windsport/Hurricane
Ram 5500	Super C — Dynamax Isata 5, Grand Design Lineage

Don't see your model? Use the Fitment Finder — we likely fit your rig.

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 $139.95

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 · Est. delivery by July 31, 2026