The Fuel Tank Hatch Cover Built for Super C & Class C Motorhomes
Not a generic fuel door — purpose-engineered for Ford E-350, E-450, F-550/F-600, F53 & Workhorse motorhome chassis with integrated tamper-resistant lock.

The Problem
- ✖Generic chrome fuel doors are decorative, not secure — designed for pickup truck beds
- ✖Universal fuel neck covers don’t fit the commercial filler necks on Super C & Class C chassis
- ✖Aftermarket fuel tank hatches lack integrated, tamper-resistant keyed locks
- ✖Exposed fuel caps on your RV are the weakest security link at every campground
The Solution
- Purpose-built for the unique fuel cap configuration on Ford E-350, E-450, F-550/F-600, F53, Workhorse & Ram 5500
- High-strength 3/16″ fiber-filled polymer (not decorative chrome) with tamper-resistant keyed lock
- The ONLY fuel tank hatch designed specifically for motorhomes — not trucks, not trailers
- Bolt-on installation in 8–15 minutes — no modifications, no drilling
- Single Door ($139.95) • Set of 2 ($279.95) • 3-Pack ($419.95) • Free U.S. shipping
- Limited Lifetime Warranty • Made in the USA
Frequently Asked Questions
The RV Fuel Tank Hatch Your Motorhome Should Have Come With
Most motorhomes built on commercial truck chassis ship with a completely exposed, unprotected fuel cap. The RV Fuel Vault is the aftermarket fuel tank hatch that solves this problem: a locking, weather-sealed, factory-finished door that installs in minutes.
Order Today — Starting at $139.95
Single Door, Set of 2, or 3-Pack · Free shipping · Limited Lifetime Warranty · 30-day guarantee
Order NowProudly Made in the USA · Patent Pending
