It is the part that covers the mouth section where fuel is filled into the vehicle’s fuel tank. This cap is used both to ensure the security of the fuel system and to protect it from external factors (dust, water, dirt, etc.). It is also an important part in terms of fuel security systems. It is the area where theft occurs most frequently.

Fuel Guard is a mechanical security device mounted on the fuel tank that prevents the diesel from being siphoned back using a hose or similar apparatus. It is made of aluminum material. The aluminum provides corrosion resistance and durability. It has a perforated filter-like structure. A nitrile gasket is used against fuel leakage. It is fixed with a setscrew. An upper ring protection accessory is used to provide extra security and prevent the setscrew from being removed. It is manufactured according to the tank neck dimensions of different vehicle makes and models. Since it fits the tank neck measurements of the vehicle, the original fuel cap can still be used. It allows fast filling flow. It does not affect the fuel filling time. It is quick and easy to install. With this design and product, fuel theft and misuse from the tank neck area are prevented.