Why won’t my RV fuel door latch?

Usually the plastic catch, spring or hinge has worn out, or the door has warped from UV and heat so it no longer lines up with the catch.

Should I replace the latch or the whole door?

A new latch on an old warped door often fails again. Replacing the whole door with a locking RV Fuel Vault fixes the problem for good and adds a lock.

How long does it take?

Most installs take 8–15 minutes with hand tools or an impact driver. No drilling.

Does it fit my motorhome?

It fits Class C (Ford E-350/E-450), Class A gas (Ford F53/Workhorse) and Super C (F-550/F-600, Ram 5500, Freightliner S2RV). Confirm your coach in Find My Fit. It does not fit Sprinter, Transit or ProMaster van campers.

From $159.95 (small single) or $169.95 (large door).

Stop Taping It Shut

RV Fuel Door Won’t Close or Latch? Here’s the Permanent Fix

When a factory motorhome fuel door won’t latch, the hinge, catch or plastic door itself has usually worn out. Instead of chasing another plastic part, bolt a locking RV Fuel Vault over the factory cutout in 8–15 minutes.

Order Now — From $159.95

Patent Pending Made in USA Fast UPS Shipping Ships in 3 Business Days

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

Why a Locking Gas Cap Is Not Enough

✖Worn plastic latches and catches stop holding the door closed
✖UV and heat warp thin factory doors so they no longer sit flat
✖Cracked hinges let the door flap open at highway speed
✖A door that won’t close leaves the cap open to dust, water and tampering
✖Tape and zip ties look bad and fail

Why a Locking Fuel Door Beats a Locking Gas Cap

Replaces the failed door with a rugged, locking door that stays shut
Bolts over the factory cutout using the existing screw holes — no drilling
Keyed lock: only you open it
Fits Ford E-350/E-450 and F53/Workhorse, plus Super C on F-550/F-600, Ram 5500 and Freightliner S2RV
Limited Lifetime Warranty and 30-day guarantee
Made in the USA

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

✖ Failed factory door

✓ RV Fuel Vault installed

Why You Need a Locking Fuel Door

Lead with finish. End with security.

Stays Shut

A locking door that closes and stays closed.

Adds Security

Keyed lock stops siphoning and tampering.

Seals Out Grit

Keeps dust and water off the cap seal.

Won’t Warp

High Impact Reinforced Material stands up to UV and heat.

How It Installs — 8–15 Minutes, No Drilling, No Cutting

Confirm your coach in Find My Fit

Remove the screws holding the worn factory door or bezel

Line up the RV Fuel Vault with the factory screw holes

Secure with the included security screws — do not over-tighten

Test the lock with both keys

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 $159.95

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

Order My RV Fuel Vault

Proudly Made in the USA · Patent Pending · In Stock — Ships in 3 Business Days