PREVENT UNAUTHORIZED USE: The Flow Security Systems PRE-VENT Fuel Cap is a quick and inexpensive way to safeguard costly fuel and oil from theft,
Fuel Anti Theft Devices for Boats
CURT 3500 lb. cap. Hitch Lock with Adapter - Ace Hardware
Are locking gas caps worth it? - Quora
Auxiliary Diesel Fuel Tank, 60 Gallon
Fuel Security Locking Cap for Diesel Truck and Transfer Tanks FSS-754 - Mobilistics™
VEVOR Portable Diesel Tank, 116 Gallon Capacity & 10 GPM Flow Rate, Diesel Fuel Tank with
PREVENT UNAUTHORIZED USE: The Flow Security Systems FSS-377 vented fuel cap is a quick and inexpensive way to safeguard costly fuel and oil from
Vented Locking Fuel Tank Cap | For Transfer Tanks & Above Ground Commercial Tanks | Prevents Theft & Fuel Vandalism | Secures Fuel Tanks | FSS 377F
Flow Security Systems, VersaLock, Vented Locking Fuel Tank Cap, For Transfer Tanks & Above Ground Commercial Tanks, Prevents Theft & Secures Fuel Tanks, Includes Adapter
Raleigh Steel Bike U-Lock Cable Combo w/Mounting Bracket & Velcro, Anti- Theft, Grey, 9-in