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The Part the Factory Forgot

Motorhome Fuel Door — The Part the Factory Forgot

Cars have fuel doors. Trucks have fuel doors. Your motorhome should too. The RV Fuel Vault is the first locking fuel door purpose-built for motorhomes.

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

  • Motorhomes are the only vehicles on the road without a proper fuel door
  • Every car and truck has a fuel door — but your $100K+ motorhome does not
  • RV manufacturers build bodies on commercial chassis but never add a fuel door
  • Without a fuel door, your fuel system is exposed to theft, contamination, and weather
  • It is an industry-wide oversight that affects every Class A, Class C, and Super C

Why a Locking Fuel Door Beats a Locking Gas Cap

  • The first fuel door purpose-built for motorhomes
  • Factory-finished look that matches the quality of your motorhome
  • Tamper-resistant keyed lock secures your fuel system
  • Fits Class A, Class C, and Super C across all major chassis
  • Bolt-on in 8-15 minutes — no drilling, no cutting
  • High-strength fiber-filled polymer — built to last the life of your motorhome

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

Exposed cap — no security — exposed RV fuel cap before locking fuel door
Exposed cap — no security
RV Fuel Vault installed — RV Fuel Vault locking fuel door 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.

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

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