What Class C motorhomes does The RV Fuel Vault fit?

The RV Fuel Vault fits Class C motorhomes on Ford E-350 and E-450 chassis including Thor Four Winds, Chateau, and Quantum, Winnebago Minnie Winnie and Spirit, Jayco Redhawk SE, Coachmen Freelander and Leprechaun, Forest River Sunseeker and Forester, East to West Entrada, Entegra Esteem and Odyssey, Nexus Viper, and Gulf Stream BT Cruiser.

Why do Class C motorhomes need a fuel cap cover?

Class C motorhomes on Ford E-350 and E-450 chassis have exposed fuel caps vulnerable to theft, siphoning, contamination, and vandalism. A full tank of diesel can cost $200 to $400.

Does this fit both gas and diesel Class C motorhomes?

Yes. The RV Fuel Vault fits both gas E-350 and diesel E-450 Class C motorhomes. For diesel models with a DEF cap, the 3-Pack option covers both fuel and DEF fill points.

How much does a Class C motorhome fuel cap cover cost?

Starting at $139.95 for a Single Door, $279.95 for a Set of 2, or $419.95 for a 3-Pack including a DEF cover. Free U.S. shipping.

Is a locking fuel door better than a locking gas cap for a Class C motorhome?

Yes. A locking fuel door shields the entire filler area, while a locking cap only protects the threads and often will not fit the E-350/E-450 filler neck. The RV Fuel Vault adds a keyed, armored door over the whole assembly to stop siphoning, contamination, and tampering.

How long does it take to install on a Class C motorhome?

Most owners install it in 8 to 15 minutes using basic hand tools. It is a bolt-on installation with no drilling or modifications.

The RV Fuel Vault^™

The #1 Fuel Cap Cover for Class C Motorhomes

Purpose-built for every Class C on Ford E-350 & E-450 gas chassis

The RV Fuel Vault — RV fuel cap cover, fuel hatch cover and gas cap hatch for Super C and Class C motorhomes

The Problem

✖Ford E-350 & E-450 Class C motorhomes have exposed, unlocked gas caps
✖Generic locking gas caps don’t fit the E-350 or E-450 filler neck properly
✖Fuel theft and contamination at campgrounds can cost thousands in repairs
✖No factory fuel cap security option exists for Class C motorhomes

The Solution

Fits ALL E-350 & E-450 Class C brands: Coachmen, East to West, Entegra Coach, Forest River, Gulf Stream, Jayco, Nexus RV, Phoenix USA, Thor, Winnebago & more
High-strength fiber-filled polymer with tamper-resistant keyed lock
Bolt-on install in 8–15 minutes with basic tools — no modifications
Made in USA with Limited Lifetime Warranty and free shipping. Starting at $139.95.

Frequently Asked Questions

Fuel Cap Security for Class C Motorhomes

Class C motorhomes are the most popular type of motorhome in North America, and virtually every one built on a Ford E-350 or E-450 chassis has an exposed, unprotected fuel cap. The RV Fuel Vault was designed to fix this problem with a bolt-on locking fuel door that installs in minutes.

Whether you drive a Thor Four Winds, Winnebago Minnie Winnie, Coachmen Freelander, or any other E-series Class C, The RV Fuel Vault is purpose-built for your chassis.

Order Today — Starting at $139.95

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