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The Part the Factory Forgot

Ford E-450 Locking Fuel Door — The Part the Factory Forgot

The only locking fuel-door enclosure purpose-built for Class C motorhomes on the Ford E-450 chassis. Factory-finished look meets real security.

The RV Fuel Vault — Locking Fuel-Door Enclosure — locking fuel door for motorhomes

The Problem

  • Every Ford E-450 Class C motorhome leaves the factory with an exposed, unlocked gas cap
  • Generic locking gas caps and chrome fuel doors don’t fit the E-450 filler neck properly
  • Fuel theft, siphoning, and contamination are real risks at campgrounds and overnight stops
  • Your $150,000+ motorhome looks unfinished with a bare plastic cap on the side
  • Ford does not offer a factory fuel door solution for E-450 chassis RVs

The RV Fuel Vault Solution

  • Factory-finished look — eliminates the ugly exposed gas cap and gives your rig a production-complete appearance
  • Precision-engineered specifically for the Ford E-450 fuel cap configuration
  • Tamper-resistant keyed lock stops fuel theft, siphoning, contamination, and vandalism
  • High-strength fiber-filled polymer — UV-resistant, all-weather durable
  • Bolt-on install in 8–15 minutes with basic hand tools — no drilling, no cutting, no modifications
  • Fits ALL E-450 Class C brands: Coachmen, Thor, Winnebago, East to West, Entegra, Forest River, Gulf Stream, Jayco, Nexus RV, Phoenix USA

See the Difference

Exposed cap — no security
Exposed cap — no security
RV Fuel Vault installed
RV Fuel Vault installed

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.

Installs in 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 Ford E-450 Motorhomes

The Ford E-450 is the most popular Class C motorhome chassis in North America. Every one leaves the factory without a locking fuel door.

ManufacturerModels / Floorplans
CoachmenFreelander (26DS, 26MB, 30KB, 30RS, 31MB), Leprechaun (260DS, 260MB, 260QB, 300RS, 308KB, 319MB)
East to West RVEntrada (2700NS, 2800S, 2950OK, 3100FB)
Entegra CoachOdyssey SE
Forest RiverSunseeker, Forester
Gulf StreamBT Cruiser (5255, 5260, 5270)
JaycoRedhawk, Melbourne
Nexus RVPhantom, Viper, Rebel, Ghost, Triumph
Phoenix USAPhoenix Cruiser
Thor Motor CoachChateau, Four Winds, Quantum (28G, 28Z, 29K, 31E, 31H)
WinnebagoMinnie Winnie (25B, 26T, 31H, 31K), Spirit (25B, 26T, 31H, 31K), View, Navion
Don't see your model? Use the Fitment Finder — we likely fit your rig.

Frequently Asked Questions

Common questions about The RV Fuel Vault on Ford E-450 motorhomes

Not Sure If It Fits Your Rig?

Our Fitment Finder checks your exact year, make, model, and floorplan in seconds.

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Order Today — Starting at $84.95

Single Door, Set of 2, or 3-Pack · Free Shipping · Limited Lifetime Warranty · 30-Day Guarantee

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Proudly Made in the USA · Patent Pending 19/632,042 · Est. delivery by July 4, 2026