Locking Fuel Doors for Montana Work Trucks
If your trucks work in Billings, Missoula, Great Falls, or anywhere else in Montana, their fuel caps are sitting completely exposed every night. The Work Truck Fuel Vault is an armored, locking fuel door that bolts over the filler area in about 15 minutes — no drilling.
Free Shipping
Free delivery anywhere in Montana.
Lifetime Warranty
30-day money-back guarantee.
Fleet Pricing
Volume rates and PO terms.
Who Needs This in Montana
Montana fleets run heavy in agriculture and equipment hauling, oil, gas, and pipeline, construction and general contracting. Those trucks park loaded, often outside a fenced yard, and a five-gallon can walks off with your fuel before sunrise.
agriculture and equipment hauling
Trucks left on site overnight with full tanks and no fuel security.
oil, gas, and pipeline
Trucks left on site overnight with full tanks and no fuel security.
construction and general contracting
Trucks left on site overnight with full tanks and no fuel security.
Cities We Ship To
Montana Questions
Do you ship locking fuel doors to Montana?
Yes. We ship to every address in Montana, including Billings, Missoula, Great Falls, Bozeman. Shipping within the United States is free; Canadian orders ship at published rates in USD.
Which trucks does it fit in Montana?
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 service body, ambulance, and shuttle builds on those chassis.
Is diesel theft a real problem in Montana?
Fuel theft follows work. Montana runs heavy in agriculture and equipment hauling, oil, gas, and pipeline, construction and general contracting — the exact industries whose trucks sit loaded overnight at yards, jobsites, and lots. That is where siphoning happens.
How long does installation take?
About 15 minutes with basic hand tools. No drilling, cutting, or welding. Most crews install their own.
Do you offer fleet pricing?
Yes. Fleet and municipal buyers in Montana get volume pricing, consolidated invoicing, and purchase order terms. Use the fleet inquiry form and we will price your unit count.