RV Fuel Cap Cover — Factory Finish Meets Real Security
The RV Fuel Vault is the first locking fuel-door enclosure designed for motorhomes — a clean factory look with a tamper-resistant keyed lock built in.
Why a Locking Gas Cap Is Not Enough
- ✖Every motorhome leaves the factory with zero fuel cap coverage
- ✖An uncovered fuel cap makes your motorhome look unfinished
- ✖Without a cap cover, your fuel system is exposed to theft and contamination
- ✖Generic cap covers do not fit motorhome commercial filler necks
- ✖No RV manufacturer offers a locking fuel-door enclosure
Why a Locking Fuel Door Beats a Locking Gas Cap
- The first locking fuel-door enclosure purpose-built for motorhome filler necks
- Factory-finished look — eliminates the exposed cap problem
- Built-in tamper-resistant keyed lock
- 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?
Our Fitment Finder checks your exact year, make, model, and floorplan in seconds.
Find My FitOrder 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 VaultProudly Made in the USA · Patent Pending · Est. delivery by July 31, 2026