The 10 Best Trailer Hitch Locks

If you’ve made a significant investment in your trailer, shouldn’t you be willing to invest in the lock that will protect it? Any thief trying to get past the Amplock U-BRP2516 (about $265) will likely give up due to sheer exhaustion or frustration before making any headway.

The aptly named MegaHitch Vault Pro (about $199) is essentially a sturdy, portable lock box that you attach to a trailer coupler for reliable protection. Inside, a 2-5/16-inch security ball that mimics a tow ball serves as a second layer of defense.

The Motormic Set (about $20) consists of one large and one small pin, which makes this kit compatible with class I, II, III, IV and V receivers. They’re made from hardened steel with a black powder-coated finish that minimizes the risk of rust and corrosion.

Thanks to their tough rubber end caps, moisture and debris won’t be able to wreak havoc on the Master Lock 2866KA-2 (around $38), which extends their longevity even if they spend most of the year outdoors. The whole package includes four pins and four keys.

Keeping your trailer safe when it’s attached to your vehicle is one thing, but what about when it’s unhitched? The Curt 23079 (appx. $37) prevents anyone from hooking up to your coupler, and its durable aluminum body is extremely difficult to break or fracture.

The Blaylock TL-33 (about $36) is compatible with a wide range of coupler styles, but doesn't work with some Bulldog models. Make sure you pair it with a quality padlock, so you can go about your life stress-free with the knowledge that your unattended load is fully protected.

The keyhole on the Master Lock 389DAT (around $22) is conveniently positioned on the side, so you won’t have to contort your body just to remove it or secure it to your trailer. It’s a sturdy option that looks imposing, which helps ward off potential bandits.

With the Connor Receiver (appx. $17), you’ll save time for the fun stuff instead of fumbling around with bulky parts or a complicated locking mechanism. Once you turn the key, simply pull it out, push the pin fully into the head until you hear a click, and you’re all set.

An affordable option with a low-profile look, the Curt 23518 (about $15) features a strong pin that locks into place with a quick quarter turn. It should serve you well for plenty of boating or camping trips, as it effectively withstands the elements without rusting.

Admittedly, a sledgehammer might be able to do it in, but the Trimax UMax25 (around $21) is a useful deterrent for most would-be thieves. It’s compatible with couplers in a range of sizes, and its polished, bright red body looks stylish while it’s providing protection.