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The Part the Factory Forgot

Best RV Product of the Year — The Part Every Motorhome Should Have Had From Day One

Out of every new RV product released in 2026, The RV Fuel Vault stands alone. It is the first and only locking fuel door purpose-built for motorhomes — solving a problem that has existed since the first motorhome rolled off an assembly line. No other product this year has generated more conversation, more excitement, and more ‘why didn’t someone think of this sooner’ reactions from the RV community.

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

  • Every motorhome leaves the factory with the fuel filler neck completely exposed — no door, no cover, no protection
  • Your car has a fuel door. Your truck has a fuel door. Your $200,000 motorhome does not.
  • Fuel theft is a growing problem — your 50-100 gallon diesel tank is worth $200-500 with zero security
  • Water, road debris, and contaminants enter around the exposed filler neck every time you drive
  • Generic locking gas caps only protect the cap — they do nothing for the exposed neck area
  • Until 2026, no manufacturer ever addressed this obvious design oversight

Why a Locking Fuel Door Beats a Locking Gas Cap

  • The first and only locking fuel door designed specifically for motorhome chassis — patent pending
  • Covers and locks the entire filler neck area — not just the cap, the whole thing
  • Tamper-resistant keyed lock stops fuel theft, siphoning, contamination, and vandalism
  • Bolt-on in 8-15 minutes with basic hand tools — no drilling, cutting, or modifications
  • Factory-finished appearance that looks like it came with the motorhome
  • High-strength 3/16″ fiber-filled polymer — UV-resistant, corrosion-proof, lifetime durability
  • Fits virtually every motorhome on the road: Ford E-350, E-450, F-550, F-600, F53, Workhorse, Ram 5500
  • Made in Sarasota, Florida. 100% American made. Family-owned business.
  • From $139.95 with free shipping and Limited Lifetime Warranty

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

No fuel door — the problem every motorhome has — exposed RV fuel cap before locking fuel door
No fuel door — the problem every motorhome has
The RV Fuel Vault — best RV product of the year — RV Fuel Vault locking fuel door installed
The RV Fuel Vault — best RV product of the year

Why You Need a Locking Fuel Door

Lead with finish. End with security.

Total Fuel Security

A tamper-resistant keyed lock and full coverage design means your fuel is protected 24/7 — at camp, on the road, or in storage.

Factory-Finished Look

The single best visual upgrade for the driver side of any motorhome. Transforms exposed hardware into a clean, intentional design.

Complete Protection

Seals out water, road grime, salt, dirt, and debris. Protects your fuel system and engine from costly contamination damage.

Easiest Install Ever

Basic hand tools. 8-15 minutes. No mechanic, no dealer appointment, no modifications to your motorhome.

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