Rugged Locking RV Fuel Door
Whether you call it a fuel door, cover, or hatch — The RV Fuel Vault is the toughest locking fuel-port enclosure purpose-built for motorhomes. High-strength polymer. Tamper-resistant lock. Bolt-on in minutes.
Patent Pending · Made in Sarasota, FL · From $139.95
The Part the Factory Forgot
Most motorhomes ship with a completely exposed fuel cap — no door, no cover, no protection. That changes today.
Exposed cap — zero security
RV Fuel Vault installed — locked & finished
Why Your RV Needs a Rugged Locking Fuel Door
An exposed fuel cap isn't just ugly — it's an open invitation.
Most motorhomes leave the factory with a completely exposed fuel cap — no door, no cover, no lock
Diesel RVs carry 50–100+ gallons worth $250–$500+ in fuel — visible and accessible to anyone at any rest stop
One act of contamination — sugar, water, wrong fuel — can destroy your engine and emissions system ($5K–$15K+)
Exposed fuel ports invite opportunistic theft, vandalism, and tampering while you sleep inside
Generic locking gas caps don't cover the filler neck — they can be pried off in seconds with basic tools
Built Rugged, Built to Last
This isn't a flimsy plastic cap — it's a purpose-built locking enclosure engineered for the road.
Purpose-Built Enclosure
Not a cap, not a clip — a full locking enclosure that covers the entire fuel filler neck area. Built like the factory door your RV should have shipped with.
High-Strength Polymer Construction
Fiber-filled polymer body absorbs impacts, resists UV degradation, and shrugs off road debris. It won't rust, dent, or corrode — ever.
Tamper-Resistant Lock
Keyed cylinder lock deters pry attacks and casual tampering. One key secures your diesel, gasoline, or DEF cap — 24/7, everywhere you park.
Contamination Shield
Seals the fuel port area from sugar, water, dirt, and DEF cross-contamination. Protects your engine from $5K–$15K in avoidable damage.
Rugged Specs
High-Strength Fiber-Filled Polymer
Material
Tamper-Resistant Keyed Cylinder
Lock
8–15 Minutes
Install Time
Zero — No Drilling
Modifications
UV-Stable, All-Season
UV / Weather
Limited Lifetime
Warranty
Fuel Door vs. Cover vs. Hatch — What's the Difference?
People search for all three. The RV Fuel Vault is all three — in one rugged package.
Fuel Door
A hinged panel that covers the fuel filler area — just like on a car. Most RVs don't come with one.
Fuel Cover
A protective shield over the fuel cap. The RV Fuel Vault is a full enclosure that covers the cap AND the filler neck.
Fuel Hatch
A lockable access panel. Our hatch-style design swings open for easy fueling and locks shut for security.
Whatever you call it — The RV Fuel Vault is the only purpose-built locking fuel-port enclosure made specifically for motorhomes.
Fits Major RV Chassis
Precision-engineered for each filler neck geometry — not a one-size-fits-all product.
Ford F-550 / F-600
Super C · Diesel + DEF
Entegra, Jayco, Thor, Dynamax, Fleetwood, work trucks
Ford E-350 / E-450
Class C · Gas
Coachmen, Thor, Winnebago, Forest River, shuttle buses
Ford F53
Class A · Gas
Thor, Fleetwood, Jayco, Winnebago, Tiffin, Newmar
Ram 5500
Super C · Diesel + DEF
Dynamax Force, Nexus, Phoenix Cruiser, service trucks
Workhorse W22 / W24
Class A · Gas
Winnebago Sightseer, Itasca Sunova, legacy Class A coaches
Don't see your RV? Submit a Fitment Request — we research it for free.
Bolt-On. No Drilling. No Cutting.
The RV Fuel Vault attaches to your existing filler neck mounting points with basic hand tools. No permanent modifications — remove it anytime and your vehicle is back to factory condition.
8–15 min
Install time
0 holes
No drilling
Lifetime
Warranty
Frequently Asked Questions
Lock Down Your Fuel — The Rugged Way
From $139.95. Bolt-on in minutes. Lifetime warranty. The toughest fuel door, cover & hatch made for RVs.
Free shipping · Limited Lifetime Warranty · Made in Sarasota, FL