10 Best Fifth Wheel Hitch Locks 2026 in the United States

The Andersen Ultimate 5th Wheel Connection Lock from Ft. Knox Locks is a robust and reliable option for securing your fifth-wheel trailer. Made from heavy-duty 3/16" fully welded cold rolled steel, this lock is designed to withstand bolt cutters and crowbars, providing high security for your trailer. Its bright yellow powder coat finish serves as a visual deterrent, warning potential thieves to stay away. The lock includes a Trimax Puck Lock, which features a hidden shackle design to further prevent theft. This lock is compatible with all versions of the Andersen Ultimate 5th Wheel Connection, making it a versatile choice for various applications.

The lock is also weather-resistant, ensuring durability in different environmental conditions. However, the lock is quite heavy, weighing 18 pounds, which might make it less convenient to handle and install. Additionally, the product is priced higher compared to other fifth-wheel hitch locks, which might be a consideration for budget-conscious buyers.

The lock is made by a reputable family-run business in the USA, which adds to its appeal for those who prefer supporting local manufacturers.

The GenY Adapt 5th Wheel Lock by Ft. Knox Locks is built with heavy-duty alloy steel, making it very tough against common theft tools like bolt cutters and crowbars. Its fully welded design and strong enclosure locking mechanism provide solid security for trailers equipped with the GenY Executive 5th Wheel connection. The lock’s bright yellow powder coat finish is a notable feature—it acts as a clear visual warning to potential thieves and offers weather resistance to protect the lock from rust and corrosion over time.

Designed specifically for the GenY Executive system, compatibility is excellent if your trailer uses this type of hitch. The size and shape are practical, though it’s important to ensure your trailer matches the lock’s fit. While it doesn’t include a puck lock, it is straightforward to use and install, offering a quick and reliable security solution without complicated steps.

Ft. Knox is known for quality locks made in the USA, and positive customer ratings reflect satisfaction with this product’s durability and effectiveness. Its specialized compatibility means it may not work with other hitch types, and the limited warranty on powder coating suggests some care is needed to maintain its finish. For anyone with a GenY Executive 5th wheel setup seeking a robust and visible theft deterrent, this lock represents a strong choice.

The BOYISEN 5th Wheel King Pin Lock is a solid option for RVs, semi-trailers, and campers. Made from solid steel, it offers durability and resistance to theft, which is crucial for long-term use in various weather conditions. One of its standout features is the handle and outward-facing turn cylinder, which makes it easier to lock and unlock compared to other kingpin locks. This user-friendly design can be especially beneficial for those who might struggle with more traditional locking mechanisms.

Additionally, the lock comes with three keys and uses a unique blossom lock that ensures your key is unique, reducing the risk of someone else having the same key. The high visibility warning tag is a thoughtful addition that helps users remember to remove the lock before hitching, which can prevent potential damage or accidents. It's also universally compatible, making it suitable for trucking companies, RV dealers, or fleet drivers who use RVs, boats, and campers. At 2.2 pounds, some users might find it slightly heavy, but the solid steel construction justifies the weight as it adds to the lock's robustness. The BOYISEN 5th Wheel King Pin Lock is a strong, user-friendly, and reliable choice for protecting your fifth-wheel hitch.