10 Best Fifth Wheel Locks 2025 in the United States

The Andersen Ultimate 5th Wheel Connection Lock is built with ultra-high security in mind, featuring a proprietary design that fits all versions of the Andersen Ultimate 5th Wheel connection. Its heavy-duty construction utilizes 3/16-inch fully welded cold rolled steel, making it highly resistant to bolt cutters and crowbars. The bright yellow powder coat finish serves as a deterrent to potential thieves.

The Trimax puck lock included is a hidden-shackle padlock designed to prevent theft, emphasizing the lock's security aspect. This product is particularly suitable for users looking to secure their fifth-wheel trailer with a robust and visible lock mechanism.

Its dimensions of 11.5 x 4.5 x 7 inches ensure compatibility with most fifth-wheel connections, and the steel construction guarantees durability and strength. The included components, such as the Trimax puck lock and two keys, add convenience and value to the purchase. If you need a sturdy and secure lock for your Andersen Ultimate 5th Wheel connection and prioritize security above all, this product is a worthy consideration.

The Andersen Ultimate 5th Wheel Connection Lock is designed for high security with its robust construction. Made from fully welded cold rolled steel, this lock is both bolt cutter and crowbar proof, ensuring it stands up to potential theft attempts. Its bright yellow powder coat finish not only provides a layer of weather resistance but also acts as a deterrent for thieves.

The lock fits all versions of the Andersen Ultimate 5th Wheel connection, including the new funnel and eye bolt applications, making it versatile for different setups. The use of a hasp that accepts most 'puck' style locks (though not included) adds an extra layer of security. However, at 18 pounds, it is relatively heavy, which might make it less portable.

Additionally, while the lock is highly secure, some users might find the need for a separate puck lock inconvenient. The bright yellow finish is excellent for visibility but may not appeal to those looking for a more discreet option. This lock is a solid choice for those needing heavy-duty protection and are willing to manage its weight and the requirement for an additional puck lock.

The CURT 16515 E16 5th Wheel Hitch Head is designed for towing trailers up to 16,000 lbs, making it a solid choice for medium to heavy-duty use. It features a durable carbide material with a powder-coated finish, which helps protect the hitch from rust and weather damage, ensuring it holds up well over time in different conditions. Its dual-pivot head allows for some side-to-side movement, which helps keep the trailer stable and smooth while driving.

The hitch also has an automatic locking system, simplifying the process of attaching your trailer and adding a layer of safety by ensuring it locks securely every time. To reduce noise and vibration between the truck and trailer, it includes an anti-rattle skid plate. This product comes as the hitch head only, so you will need to purchase the legs or roller separately to complete the setup, which adds to the overall cost and requires some extra work to fit properly. The size is fairly standard but should be matched to your towing setup.

While it is rated and tested to meet safety standards, the hitch head weighs over 60 pounds, which could make installation a challenge for one person. This hitch head offers strong performance, good weather resistance, and ease of use with its auto-lock and anti-rattle features, but remember to account for the additional parts needed and the weight when planning your purchase.