7 Best 5 Th Wheel Hitch Locks 2026 in the United States

The Trimax TFW80HD 5th Wheel King Pin Lock is designed to offer robust security and durability for your trailer. Made of ultra-tough steel, it is built to resist tampering and withstand harsh environments. Its red epoxy powder coat provides excellent rust and corrosion resistance, ensuring longevity and reliability over time.

The full collar design not only adds an extra layer of security but also prevents grease from transferring to your hands, which makes handling cleaner and easier. The easy push-button lock design simplifies the locking mechanism, making it quick and hassle-free to use, while the simple installation process ensures convenience when securing your trailer.

Despite its heavy-duty construction, the lock is relatively lightweight at 3.39 pounds, and its compact dimensions (7.6 x 4.41 x 2.76 inches) make it easy to store and handle. Trimax, the manufacturer, has a solid reputation for quality, further backed by a limited lifetime warranty, providing peace of mind with your purchase. This lock is particularly well-suited for those who want a durable, easy-to-use security solution for their 5th wheel trailers under various weather conditions.

The TRIMAX TFW60 Ultra Tough Alloy 5th Wheel King Pin Lock is designed to offer robust security for your trailer. Made from ultra-tough aluminum alloy, the lock is both strong and lightweight, which makes it durable without being cumbersome. The rugged weatherproof epoxy powder coat adds an extra layer of protection against rust, corrosion, and environmental damage. This feature, combined with the manufacturer's limited lifetime warranty, ensures long-lasting performance and reliability.

The full collar design not only adds structural reinforcement but also helps prevent grease transfer, enhancing ease of maintenance and security. The easy push-button lock design makes it user-friendly, allowing for quick and secure locking of your trailer. Installation is straightforward, minimizing hassle for the user.

There are a few considerations. The product dimensions (8 x 4.8 x 3 inches) and a weight of 1.08 pounds make it somewhat bulky, which might not be ideal for all users. Additionally, while it is weather-resistant, it's important to note that extreme weather conditions could still pose a challenge. Its bright yellow color also stands out, which could be a deterrent for those seeking a more discreet lock. The TRIMAX TFW60 is a solid option for those needing a reliable, easy-to-use 5th wheel hitch lock, especially if they value durability and weather resistance.

The CURT 23255 5th Wheel Trailer Lock is designed to secure your 5th wheel trailer with a high-strength steel pin and an aluminum bracket, offering reliable protection. Its key lock mechanism makes it easy to operate and provides a straightforward way to prevent your trailer from being coupled to a 5th wheel hitch. The lock fits virtually any 2-inch king pin, adding to its versatility.

Additionally, it comes with a watertight dust cap to protect internal components from the elements, which is crucial for outdoor use. The package includes two keys, giving you a spare for convenience or emergencies. It's finished with a durable carbide black powder coat, enhancing both its appearance and weather resistance.

Despite its lightweight nature at 1.6 ounces, which might raise questions about its sturdiness, CURT is a reputable brand known for automotive accessories. If you need a straightforward, easy-to-use lock for your 5th wheel trailer that promises decent weather resistance and security, the CURT 23255 is worth considering.