RV Fuel Vault Doors
Locking Fuel Door — Small, 3-Pack
Part #WTFV-3001S
Three standard doors for dual-tank trucks with a separate DEF cap, or a small fleet buying together.
Set of 3 standard doors. Ideal for Driver Side dual-tank and exposed DEF Tank Cap on Super C Rigs Security screws included.
Common Questions
Does it require drilling?
No. It bolts on using the existing fuel filler area. Basic hand tools, about 15 minutes.
What trucks does this fit?
Ford F-350 through F-750, E-Series cutaways, Ram 3500 through 5500, Chevrolet and GMC 3500HD through 6500HD, Isuzu N-Series, Freightliner M2, and most bodies built on those chassis. Check the fitment guide for your exact truck.
How fast does it ship?
Orders ship from Sarasota, Florida. Shipping within the United States is free.
What if it does not fit?
Send it back within 30 days for a full refund. The hardware also carries a limited lifetime warranty.
More From the Shop
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Locking Fuel Door — Large, Single
The oversized door for medium-duty chassis with a larger filler bezel — Ford F-650/F-750, Freightliner M2, Isuzu FTR, and stripped chassis builds.
Fuel Vault + Bezel Bundle — Small, Single
One small Fuel Vault door plus a factory-replacement fuel cap housing bezel. The complete swap if your original bezel is cracked, faded, or already damaged.
Fuel Vault + Bezel Bundle — Small, 2-Pack
Two doors and two replacement bezels — the full rebuild for a truck with both a fuel and a DEF opening.
Fuel Vault + Bezel Bundle — Small, 3-Pack
Three doors and three replacement bezels for dual-tank and DEF-equipped work trucks.