5 Best Curt Hitch Locks 2026 in the United States

The CURT 23518 Black Trailer Hitch Lock is designed to provide dependable security for your trailer and hitch ball mount with its high-strength steel construction. This material ensures durability and long-lasting performance, making it a strong choice for preventing theft. The barbell-style locking mechanism is easy to operate, requiring only a simple 1/4-turn to lock and unlock, which adds to the convenience of usage.

Its 5/8-inch diameter pin and 2.85 inches of usable pin length make it versatile enough to fit virtually any 2-inch x 2-inch hitch receiver with a 5/8-inch hole, though it will not be compatible with double-walled receiver tubes, which could limit its applicability for some users. Weather resistance is well addressed with a watertight dust cap protecting the internal components and a durable powder coat finish that shields the lock against corrosion, making it suitable for varying weather conditions.

The inclusion of two keys is a practical touch, providing a spare for emergencies or sharing with others. Weighing only 9.5 ounces and boasting a compact size of 8.87 x 1.87 x 1.25 inches, it is lightweight and easy to handle. The CURT 23518 excels in providing reliable security with ease of use and strong resistance to weather elements, although compatibility with all hitch types may require verification before purchase.

The CURT 23504 Right-Angle Trailer Hitch Lock is designed for effective security and user convenience. Made from high-strength carbon steel, it offers dependable protection against theft. The right-angle design with a 1/4-turn lock mechanism makes it easy to access and operate, even in tight spaces.

This hitch lock fits 2-inch and 2-1/2-inch hitch receivers with a 5/8-inch hole, making it versatile for various vehicles, including trailers, ATVs, and marine-crafts. Its watertight dust cap and chrome plating enhance weather resistance, protecting internal components from corrosion and the elements. However, some users may find the size bulky, especially if storage space is limited. Additionally, while the lock comes with two keys, losing both could pose a significant inconvenience.

Weighing 10.8 ounces and with dimensions of 9 x 6 x 3 inches, it's relatively lightweight and easy to handle. With a 4.4 out of 5 stars rating from 302 customer reviews, it’s generally well-received, indicating satisfaction with its performance and durability. This hitch lock is best suited for those needing a reliable and easy-to-use option for securing their trailers or other hitched equipment.

The CURT 23519 Stainless Steel Trailer Hitch Lock is designed to offer dependable security for your trailer and hitch ball mount. Made from strong, polished stainless steel, it promises durability and resistance to corrosion, which is crucial for withstanding various weather conditions. The 5/8-inch pin diameter makes it versatile enough to fit most 2-inch and 2-1/2-inch hitch receivers, covering a range of class 3, 4, and 5 hitches.

This broad compatibility is a significant advantage for users with different towing needs. The locking mechanism is user-friendly with a 1/4-turn activation, making it easy to lock and unlock. The barbell-style design also helps deter theft by presenting an impenetrable appearance. Additionally, the lock includes a watertight dust cap to protect internal components from the elements, further enhancing its weather resistance.

For convenience, the lock comes with two keys, allowing you to keep a spare or provide access to another person when needed. While the lock offers many benefits, it is worth noting that some users may find the weight of 0.45 pounds slightly heavier than other hitch locks available. This product is well-suited for those needing a reliable, weather-resistant hitch lock that is easy to use and fits a variety of receivers.