40mm Locking DEF Cap
Avoid stolen, contaminated or tampered with diesel exhaust fluid using our state-of-the-art locking DEF caps. Due to the fact that trucks without DEF are no longer emissions compliant, your fleet cannot afford to have DEF stolen from your trucks.
Thanks in part to the additional cost associated with application and upkeep, tampering and thievery have increased in recent years as other people aim to reduce their own bottom line or manufacture a profit off your hard-earned dollar.
You can deter those threats with our locking DEF cap, which comes with two keys to limit access strictly to people you trust. They fit Class 6 and 8 trucks, with the exception of Volvo and Mack.
Outside influences can affect the effectiveness of DEF, and it can be corrosive on its own. Caps keep contaminants out of the system, and they also prevent the fluid from leaking and spilling onto other components.
The caps feature increased overall durability, as well as the distinctive blue color that will alert people to its location and indicate the exact place where the fluid goes. This identification is vital, as it will ensure foreign fluids don’t make their way into your truck, which could be a costly mistake.
Secure yourself today by contacting us to ask any questions you might have about our 40mm locking DEF caps. We will find a solution that is perfect for you.