The CURT 23518 Black Trailer Hitch Lock adds a strong, reliable layer of security to your towing setup by keeping your ball mount or hitch accessory firmly locked in place. Made with high-strength steel, this hitch lock offers dependable protection that helps deter theft and prevents unauthorized removal of your trailer.
Its barbell-style design delivers a solid, tamper-resistant appearance, while the user-friendly 1/4-turn locking mechanism allows fast, smooth operation. With a 5/8-inch pin diameter and 2.85 inches of usable length, the lock fits most standard 2” x 2” receiver hitches that accept 5/8” pins, making it a versatile choice for a wide range of towing applications. (Note: not compatible with double-walled receiver tubes.)
To withstand outdoor conditions, the lock includes a watertight dust cap that shields internal components from dirt, moisture, and debris, and its durable powder-coat finish provides corrosion resistance for long-lasting use. Two matching keys are included—perfect for keeping a spare available or sharing access when needed.
Whether you’re towing a trailer, boat, camper, or hitch-mounted accessory, the CURT 23518 provides the dependable security and ease of use you need to protect your equipment on and off the road.
Technical Details
| Manufacturer | CURT |
|---|---|
| Brand | CURT |
| Model | 23518 |
| Item Weight | 10.2 ounces |
| Product Dimensions | 8.87 x 1.87 x 1.25 inches |
| Item model number | 23518 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |




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