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The Part the Factory Forgot

You Upgraded to Digital Locks — But Your Fuel Cap Is Still Wide Open

Digital and keyless locks are one of the best security upgrades for your motorhome — convenience, peace of mind, no fumbling with keys. But while you’ve locked down every door on your rig, there’s one critical vulnerability you probably haven’t thought about: your fuel cap. No door, no lock, no protection. The RV Fuel Vault closes that gap in 15 minutes.

Order Now — From $139.95
Patent Pending Made in USA Free Shipping Ships July 2026
The RV Fuel Vault — Locking Fuel-Door Enclosure — locking fuel door for motorhomes

Why a Locking Gas Cap Is Not Enough

  • You spent good money on digital locks to secure your doors — but your fuel system has zero security
  • Every motorhome leaves the factory with a completely exposed, unlocked fuel cap — no door, no cover
  • Your digital locks keep intruders out of your rig — but anyone can walk up and access your fuel
  • Diesel costs $4-5/gallon — your 50-100 gallon tank is worth $200-500 and completely unprotected
  • Thieves can siphon your tank, contaminate your fuel, or vandalize your cap while your doors are locked tight
  • You’ve secured every entry point except the most expensive one to replace if something goes wrong

Why a Locking Fuel Door Beats a Locking Gas Cap

  • The RV Fuel Vault is a locking fuel door that completes your security setup — now every access point is protected
  • Tamper-resistant keyed lock stops fuel theft, siphoning, contamination, and vandalism
  • Factory-finished look that matches the professional appearance of your digital lock upgrade
  • High-strength 3/16″ fiber-filled polymer — UV-resistant, corrosion-proof, all-weather durable
  • Exact-fit for your specific chassis — Ford E-350, E-450, F-550, F-600, F53, Workhorse, Ram 5500
  • Bolt-on in 8-15 minutes — no drilling, no wiring, no modifications. Simpler than your digital lock install.
  • Starting at $139.95 — less than a tank of diesel and protects every fill-up after that

Before & After: Your RV's Exposed Fuel Cap vs. a Locking Fuel Door

Digital locks on your doors — but your fuel cap is wide open — exposed RV fuel cap before locking fuel door
Digital locks on your doors — but your fuel cap is wide open
RV Fuel Vault installed — now every access point is secured — RV Fuel Vault locking fuel door installed
RV Fuel Vault installed — now every access point is secured

Why You Need a Locking Fuel Door

Lead with finish. End with security.

Complete Your Security

Digital locks protect your doors. The RV Fuel Vault protects your fuel. Now every access point on your rig is locked down.

Protect Your Investment

Your digital locks protect what’s inside. The RV Fuel Vault protects hundreds of dollars of diesel from theft and contamination.

Factory-Finished Look

Just like digital locks give your doors a modern, upgraded look, The RV Fuel Vault transforms the driver side from exposed cap to clean, intentional design.

Easier Than Digital Locks

No wiring, no batteries, no programming. Just bolt it on in 15 minutes with basic hand tools and you’re done.

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?

ManufacturerModels / Floorplans
Ford E-350 / E-450Class C — Coachmen, Thor, Winnebago, Jayco, East to West, Entegra, Forest River, Gulf Stream
Ford F-550 / F-600Super C — Thor, Dynamax, Entegra Accolade/Accolade XL, Jayco, Renegade
Ford F53Class A — Coachmen, Thor, Winnebago, Tiffin, Fleetwood, Newmar, Holiday Rambler
Workhorse W22/W24Class A — Coachmen Mirada, Thor Windsport/Hurricane
Ram 5500Super 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.

Find My Fit

Order 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 Vault

Proudly Made in the USA · Patent Pending · Est. delivery by July 31, 2026