The Best Locking Fuel Door in America — Patent-Pending, Made in USA
There is only one locking fuel door engineered specifically for motorhomes — and it is made right here in America. The RV Fuel Vault is a patent-pending, bolt-on security fuel door that fits Super C, Class C, and Class A motorhomes. No other product on the market does what this does.
Why a Locking Gas Cap Is Not Enough
- ✖Your motorhome is the only vehicle you own without a locking fuel door
- ✖Locking gas caps provide minimal security — they can be pried off in seconds with basic tools
- ✖Universal fuel doors from auto parts stores do not fit motorhome chassis — wrong size, wrong shape, wrong mounting
- ✖An exposed fuel cap on the driver side is an open invitation for theft, siphoning, and contamination
- ✖Diesel costs $4-5/gallon — a full tank is worth $200-500 and completely unprotected
- ✖There has never been a locking fuel door designed for RVs — until now
Why a Locking Fuel Door Beats a Locking Gas Cap
- Patent-pending design — the first and only locking fuel door purpose-built for motorhome chassis
- Tamper-resistant keyed lock that actually stops fuel theft — not just a deterrent like locking gas caps
- Exact-fit for your specific chassis — not a universal product that requires modification
- High-strength 3/16″ fiber-filled polymer — engineered composite that will not crack, rust, or fade
- 100% designed, engineered, and manufactured in Sarasota, Florida
- Bolt-on installation in 8-15 minutes — no drilling, no cutting, basic hand tools only
- Limited Lifetime Warranty — built to last the life of your motorhome
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.
Real Security, Not Theater
Unlike locking gas caps that can be defeated in seconds, The RV Fuel Vault is a full door with a tamper-resistant lock. It is actual fuel security.
American Engineering
Designed, prototyped, tested, and manufactured in Sarasota, Florida. Patent pending. This is not an import — it is American innovation.
Total Protection
Locks out thieves AND seals out water, road grime, and contaminants. One product solves every problem with an exposed fuel cap.
Built to Last
3/16″ fiber-filled polymer with UV inhibitors. Will not crack in Arizona heat or freeze in Minnesota winters. Limited Lifetime Warranty.
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?
| 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 Accolade/Accolade XL, Jayco, Renegade |
| Ford F53 | Class A — Coachmen, Thor, Winnebago, Tiffin, Fleetwood, Newmar, Holiday Rambler |
| Workhorse W22/W24 | Class A — Coachmen Mirada, Thor Windsport/Hurricane |
| Ram 5500 | Super C — Dynamax Isata 5, Grand Design Lineage |
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