HEAVY-DUTY TRAILER LOCK: It’s important to do everything you can to protect your belongings and your trailer or camper from being stolen. Our strong coupler lock fits select Fulton-style couplers that have a raised bump head and a trigger latch. TOUGH LOCK: The locking parts on this device are constructed from hardened steel for increased security, and the exterior cover is tough enough to prevent burglars from using power tools, hammers, or crowbars on your lock. UNIQUE KEY DESIGN: Our trailer lock has a special key design that prevents lock picking. This innovative key system also features an interior locking mechanism that deters would-be thieves from making a copy of your key. CUSTOM TRAILER-COUPLER LOCK: Our patented lock design will allow you to secure most standard S-hook style safety chains in lock. This custom-tailored lock will mount only on very specific Fulton-style couplers. Check the coupler sizes that are compatible with our lock hardware to ensure that the lock you select matches your trailer coupler. PROVEN INDUSTRIES: We are dedicated to providing our customers with the most-effective trailer locks on the market. We carefully research and manufacture our locking systems from conception to fabrication in the USA. Without high-quality utility-trailer locks, you can’t protect your trailers and personal possessions. Our Model 2517-C Trailer Lock is a safe, powerful lock designed to help you increase the security of your trailers or RVs. It features a unique key design that prevents people from creating a copy of your key. Help guard your possessions and work equipment with our incredible heavy-duty coupler lock.

This custom-tailored trailer and RV lock is designed to fit only specific Fulton-style couplers that have a raised bump head and a trigger latch. Check to make sure that your coupler is compatible with the lock you select.

Our secure trailer lock is easy to install and is made of 3 pieces: an inner slide, an exterior shield, and a puck lock. To use it, attach the inner slide to your coupler and engage the latch. Insert your safety chain hooks into the patented safety chain locking compartment. Place the exterior shield over the coupler and line up the 2 slide tabs. Then, place the puck lock over the tabs. Add this lock to your camper and travel-trailer accessories for durable protection of your belongings.

Proven Industries is a family-owned business dedicated to helping you safeguard your trailers from theft and damage. We manufacture our locks in the USA with care and attention to every detail. You can rely on our high-quality locking products.