10 Best Trailer Hitch Locks 2025 in the United States

The Rhino USA Trailer Hitch Lock is a solid option for those looking to secure their trailers or towing equipment. Made from solid forged steel, this hitch lock is designed to deter theft effectively, making it a reliable choice for anyone who frequently tows a truck, boat, or bike. It fits all Class V hitches (2" x 2") seamlessly, ensuring compatibility with a variety of vehicles and trailers. Users appreciate its hefty construction, which can handle up to 18,000 lbs of gross trailer weight, indicating that it’s built to last.

A standout feature of this lock is its patented weatherproof slide cap that protects against dirt, mud, and gunk, enhancing its longevity and functionality in various weather conditions. The ease of use is also a plus, as it comes with two keys and the mechanism is straightforward, making it user-friendly.

This hitch lock could be an excellent fit for individuals who prioritize security and durability in their towing accessories. It's particularly suitable for those with Class V hitches and who often deal with varying weather conditions. However, if you value lightweight options or are concerned about weight, you might want to explore alternatives.

The Rhino USA Trailer Hitch Pin stands out as a sturdy option for those seeking a reliable hitch lock. Made from solid carbon steel, it offers strong material quality, ensuring the hitch pin can withstand attempts of theft, catering to security needs effectively. Its design, suitable for Class III and IV hitches (2" x 2"), ensures it fits standard hitch sizes, appealing to a broad user base that includes trailer and RV owners.

The patented slide cap is a noteworthy feature, providing weather resistance by blocking dirt and debris, which helps maintain the pin's durability and performance over time. Ease of use is enhanced by the inclusion of two keys, making it accessible and user-friendly for regular locking and unlocking. The powder-coated finish not only adds to its aesthetic appeal but also contributes to its corrosion resistance.

Additionally, Rhino USA's brand reputation is reinforced by the emphasis on American family ownership and commendable customer support, along with a lifetime replacement warranty, which is reassuring for buyers. Potential users should be aware that this product is manufactured in China, which might be a point of consideration for those specifically looking for fully USA-made products. The robust features and backing by a lifetime warranty make it an attractive option for those prioritizing security and longevity in their trailer hitch lock.

The Master Lock 379ATPY Universal Trailer Hitch Lock is a sturdy and reliable option for securing trailers, RVs, and vehicles. Made from zinc, this lock is designed to resist rust and corrosion, which enhances its durability and weather resistance. Its compatibility is notable, fitting 1-7/8 inch, 2 inch, and most 2-5/16 inch trailer couplers, making it versatile for various trailer types.

The advanced locking mechanism helps protect against picking and prying, adding an extra layer of security. This lock comes with two keys, making it convenient for multiple users or as a backup. At 5.1 x 3.5 x 4.6 inches, it is portable and easy to store when not in use. Master Lock is a reputable brand known for its reliable security products, which boosts confidence in this hitch lock's performance.

However, one potential drawback is that keyed locks can sometimes be less convenient than combination locks, especially if the keys are misplaced. Despite this, the Master Lock 379ATPY offers a robust and weather-resistant solution for trailer security.