The Velvac 3" Aluminum Locking Fuel Cap is the perfect solution for keeping your fuel tank secure. This locking fuel cap is designed with a patented lock to protect against moisture and contaminants and comes with two keys for easy access to the fuel tank for refueling. The cap also features standard safety chains and crossbars for added security. With its durable brass construction, this cap is sure to provide reliable performance. FleetPride is your First Click in Heavy Duty®.