Can I replace a broken RV fuel door myself?

Yes. Remove the screws holding the broken door or bezel, set The RV Fuel Vault over the same factory cutout, and secure it with the included security screws. Most owners finish in 8–15 minutes with hand tools.

Do I need to drill or cut anything?

No. It uses the existing factory screw holes. No drilling, cutting or bodywork.

Does it replace my fuel cap?

No. Your factory fuel cap stays in place. The RV Fuel Vault is a locking door that covers it.

Which motorhomes does it fit?

Class C on the Ford E-350/E-450, Class A gas on the Ford F53/Workhorse, and Super C on the Ford F-550/F-600, Ram 5500 and Freightliner S2RV. A Round Bezel version fits round factory bezels. It does not fit tow vehicles, cars, or Sprinter, Transit or ProMaster van campers.

How much does a replacement cost?

From $159.95 for a single small door and $169.95 for the large door. 2-Pack $319.95 and 3-Pack with DEF $479.95.

Can my RV service center install it?

Yes. Any RV technician can install it in a few minutes. Shops can buy wholesale through our dealer program.

Replacement + Upgrade

How to Replace a Broken RV Fuel Door (and Upgrade It to a Locking One)

Remove the broken factory door or bezel and bolt The RV Fuel Vault over the same factory cutout. It uses the existing screw holes, takes 8–15 minutes, and adds a keyed lock.

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

✖Thin factory plastic fuel doors crack, fade and snap off from UV and road vibration
✖Many motorhomes never had a fuel door at all — the cap sits exposed in an open pocket
✖Dealer replacement parts for the original door can be hard to find or back-ordered
✖A replacement plastic door fails the same way again
✖An open fill invites dust, water, tampering and fuel theft

Why a Locking Fuel Door Beats a Locking Gas Cap

Bolts over the existing factory cutout using the factory screw holes — no drilling, cutting or bodywork
3/16" High Impact Reinforced Material that resists UV, salt, fuel and impacts
Keyed lock and security screws included — the factory cap stays in place underneath
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)
Limited Lifetime Warranty, 30-day guarantee and the $500 No-Siphon Promise
Made in the USA

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

✖ Exposed / broken factory fill

✓ RV Fuel Vault installed

Why You Need a Locking Fuel Door

Lead with finish. End with security.

Factory-Finished Look

Replaces the cracked or missing door with a clean, finished cover.

Adds a Lock

Your replacement door now locks — stopping siphoning at storage lots and campgrounds.

Keeps Dirt Out

Shields the cap seal from dust and water.

Tough Material

Will not crack like thin OEM plastic.

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

Confirm your coach in Find My Fit so you get the right door size and screw pack

Remove the screws holding the broken door or factory bezel (leave the fuel cap in place)

Line the RV Fuel Vault up with the factory cutout and screw holes

Secure with the included security screws — an impact driver works best; 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