What is The RV Fuel Vault?

The RV Fuel Vault is a patent-pending locking fuel door purpose-built for motorhomes. It covers the exposed filler neck, provides a factory-finished look, and secures your fuel with a tamper-resistant keyed lock.

Every motorhome leaves the factory without a fuel door — your fuel cap is completely exposed. The RV Fuel Vault provides the finished look, fuel theft protection, and contamination defense that should have been included from the factory.

What RVs does it fit?

Ford E-350, E-450, F-550, F-600, F53, Workhorse W22/W24, and Ram 5500 chassis — covering virtually every Super C, Class C, and Class A motorhome in production.

How hard is installation?

Bolt-on in 8-15 minutes with basic hand tools. No drilling, no cutting, no permanent modifications. Completely reversible.

How much does it cost?

Starting from $84.95. Founders Edition pre-order pricing available now — no charge until your order ships.

Limited Lifetime Warranty against defects in material and workmanship plus a 30-day satisfaction guarantee.

The Part the Factory Forgot

The RV Fuel Vault — The Part the Factory Forgot

The first and only locking fuel door engineered for motorhomes. Factory-finished look. Real keyed security. Bolt-on in 15 minutes. Made in the USA.

The RV Fuel Vault — Locking Fuel Cap Cover — locking fuel door for motorhomes

The Problem

✖Every motorhome leaves the factory with an exposed, unlocked fuel cap — the part they forgot
✖You spent $100K-$500K on a motorhome that has zero fuel security from the factory
✖Fuel theft at campgrounds and overnight stops costs RV owners thousands per year
✖Generic locking caps and chrome doors are built for trucks — not RV filler necks
✖Your rig looks unfinished with a bare plastic cap exposed on the side

The RV Fuel Vault Solution

Factory-finished look — eliminates the exposed cap and gives your motorhome a production-complete appearance
Tamper-resistant keyed lock stops fuel theft, siphoning, contamination, and vandalism
Purpose-built for motorhome filler necks — not a truck part, not a universal fit
High-strength 3/16 inch fiber-filled polymer — UV-proof, weather-proof, corrosion-proof
Bolt-on in 8-15 minutes — no drilling, no cutting, no modifications
Fits Ford E-350, E-450, F-550, F-600, F53, Workhorse W22/W24, and Ram 5500
Patent Pending (19/632,042) — Made in the USA

See the Difference

✖ 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.

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

Compatible Chassis & Models

The RV Fuel Vault fits every major motorhome chassis in North America — from compact Class C to full-size Super C and Class A.

Manufacturer	Models / Floorplans
Ford E-350 / E-450	Class C — Coachmen, Thor, Winnebago, Jayco, East to West, Entegra, Forest River, Gulf Stream, Nexus, Phoenix
Ford F-550 / F-600	Super C — Thor, Dynamax, Entegra, Jayco, Renegade
Ford F53	Class A — Coachmen, Thor, Winnebago, Tiffin, Fleetwood, Newmar, Holiday Rambler
Workhorse W22/W24	Class A — Coachmen Mirada/Pursuit, 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.

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Pre-Order Today — Starting at $84.95

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

Pre-Order My RV Fuel Vault

Proudly Made in the USA · Patent Pending 19/632,042 · No charge until your order ships