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Protect your fuel fill point while giving your motorhome a clean, factory-finished look. This locking fuel door helps deter theft, contamination, and vandalism without modifying your coach, and installs in minutes with a simple bolt-on design.
Fuel fills can be vulnerable to siphoning, contamination, vandalism, and unauthorized access. A tamper-resistant keyed lock secures your fuel fill behind the locking door, giving you controlled access when it's time to refuel. Standard Phillips-head screws can leave accessible fuel-door hardware easier to approach with common tools. Tamper-resistant Torx security screws replace those factory screws, adding another obstacle around your secured fuel fill. A compatable Torx drill bit is included in the box.
Adding a locking fuel door doesn't require cutting into your coach or modifying the tank. Simple installation uses no cutting, drilling, or tank modifications, leaving your existing bodywork and tank unchanged during installation. Just remove the old screws, put the door in place, and install with the new security screws.
Your fuel door sits where diesel, gasoline, DEF, road salts, and exterior exposure can reach it. Thick, high-impact reinforced fiber-filled polymer composite is 100 Percent chemically inert to those fluids and salts and won't pit, rust, or corrode, maintaining its structural integrity around the fuel fill.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody. Andy here with etrailer. Let's take a real quick look together at the RV Fuel Vault Large Locking Door. Now this large locking door is an added layer of security for the fuel fill on compatible motor homes. And this is designed for those who want to make it harder for someone to siphon fuel, contaminate the tank, or vandalize the fill area, or otherwise just gain unauthorized access. So for fitment, this door is going to fit Ford E-350, E-450 and F53 motor home applications.
And the motor home manufacturers are listed on this product page. There was too many for me to actually fit on that graphic, but this is going to be for those motor home applications from Ford. So because there are a lot of different motor home configurations within those chassis and that brand, confirming the specific application is going to be a very important consideration before picking this up. But the main advantage is that this is going to secure the fuel fill behind a keyed tamper-resistant locking door. And this also comes with these Torx security screws that are going to replace the more easily accessible Phillips-head hardware.
So there's also an additional barrier there against someone trying to remove or tamper with the fuel door. The door itself is made from thick, high-impact, reinforced fiber-filled polymer composite. And so I'm very impressed with the build quality of this. It almost gives you the impression that it might be metal at first, just because of how it looks, and there's a really good weight to it. The word that comes to mind is this feels very robust.
So this is going to measure, the material itself, about 3/16ths of an inch thick. And because it's polymer rather than metal, you're not going to have to worry about pitting, rusting, or corroding. And the material is also stated to be chemically inert to diesel fuel, gasoline, DEF, and road salts, which is useful, considering where the door is typically installed, and what it may be exposed to. And this has a temperature rating from negative 40 degrees Fahrenheit, all the way up to 220 degrees Fahrenheit. But appearance is another part of the design.
Rather than looking like an improvised security add-on, this black rectangular door is intended to give the fuel fill area a clean factory finish appearance, and it has an open back design, so the existing fuel fill is going to remain accessible when the door is unlocked and open. So as you can see here, you're going to get two keys with this, and it's going to be very easy to lock and unlock, just like that. And what I have here, the key also comes with a cool, gonna call that a fob with a, I believe that's a bottle opener there. So very, very easy to use. You see the lock and action there. And then like I said, the hardware, you're also going to get the bit here to help with getting the hardware installed. Let me give you some measurements here as I wrap up our time together here. So looking at the overall height, about 8 1/8th inches. And what I'm calling the width, about 7 1/8th inches. So this is going to be a bolt-on setup. It doesn't require cutting or drilling into the motor home or making modifications to the fuel tank. And the listed installation time from the RV Fuel Vault is going to be about eight to 15 minutes. So it's going to be a relatively straightforward security upgrade, while leaving the existing body work and tank virtually unchanged. You're going to get exactly what you see here. And so again, this is going to give you controlled key access to your fuel fill. It's going to give you tamper-resistant mounting hardware, and you're not going to make any permanent modifications to your coach. And again, comes with two keys, keyed alike. And I think that's going to wrap up our quick look today. I do hope that it was helpful for you. Again, my name's Andy. Thank you for joining me.
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Kate F.
10/28/2026
Thanks for the review Stefan, and including the pictures as well! I wish we didn't live in a world where you have to worry about your belongings, but I am glad we had the right thing to keep you protected!