RV Fuel Door — The Part the Factory Forgot
Every car and truck has a fuel door. Your motorhome does not. The RV Fuel Vault is the first locking fuel door purpose-built for RVs.

Why a Locking Gas Cap Is Not Enough
- ✖Your motorhome is the only vehicle you own without a fuel door
- ✖An exposed fuel cap on a $100K+ motorhome looks unfinished
- ✖Without a fuel door, your filler neck is open to theft, siphoning, and contamination
- ✖There has never been a fuel door option for motorhomes — until now
- ✖RV manufacturers focus on the interior and overlook fuel system finishing
Why a Locking Fuel Door Beats a Locking Gas Cap
- The first RV fuel door — purpose-built for motorhome filler necks
- Factory-finished look that matches the quality of your rig
- Tamper-resistant keyed lock for real security
- 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
Before & After: Your RV's Exposed Fuel Cap vs. a Locking Fuel Door


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
Frequently Asked Questions
Common questions about The RV Fuel Vault
Not Sure If It Fits Your Rig?
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Single Door, Set of 2, or 3-Pack · Free Shipping · Limited Lifetime Warranty · 30-Day Guarantee
Order My RV Fuel VaultProudly Made in the USA · Patent Pending · Est. delivery by July 31, 2026
