ZaCK Drainage is a robust security padlock designed to lock the fuel tank drainage hole and/or the discharge valve of the diesel water separator filter. These points are easily accessible to anyone with malicious intent who wants to steal fuel.

The compact design makes it protrude only 8mm more than the original cap, without modifying the established heights by the vehicle manufacturer.

ZaCK Drainage is simply closed and tightened by hand. Once tightened and in position, it is enough to press a button on the lock, and nobody can unscrew it without the key since it rotates freely in itself.