Towing Hitch Locks

Common types include hitch pin locks (replace the standard hitch pin for receiver hitches), coupler locks (secure the trailer coupler to the ball), and hitch ball locks (lock the trailer ball). They differ by mounting location, compatibility with hitch class/diameter, and whether they protect against removal or coupling

Match the lock type to your hitch: check receiver size (e.g., 1-1/4", 2"), hitch class (I–V) and pin diameter, or measure the coupler/bore you need to secure. Also verify whether you need a keyed-alike option or different keys for multiple locks

Look for hardened steel or alloy bodies for cut resistance, and plated or powder-coated finishes for corrosion resistance. Additional features include anti-drill pins, weatherproof lock cylinders, and designs that prevent leverage attacks

Towing hitch locks in the market commonly range from budget options under $50 to higher-security models over $150, with an average around $80. Price is driven by materials, security features, brand, and whether multiple locks or keyed-alike sets are included

Combination locks eliminate key management but rely on the robustness of the dial or push-button mechanism; high-quality combination locks can be secure, but cheaper models may be easier to defeat. Choose reputable constructions and weather-resistant mechanisms regardless of type

Regularly clean off dirt and road salt, apply a light lubricant to the lock cylinder annually or as recommended, inspect for corrosion or wear, and store spare keys in a safe place. Replace locks that show significant rust, seized mechanisms, or damage

Typically no—coupler locks and receiver hitch pin locks secure different connection points; securing both requires the appropriate lock type for each. Some multi-function security systems attach at multiple points, but verify compatibility with your trailer and hitch