Master Lock 379ATPY Trailer Coupler Lock for RVs and Utility Trailers

The Master Lock 379ATPY Universal Trailer Coupler Lock is an essential towing security solution that helps prevent unauthorized coupling when your trailer is parked, stored, or left unattended. This lock is specifically designed for compatibility with common coupler sizes, making it ideal for securing utility trailers, enclosed trailers, RVs, campers, boat trailers, and other towable equipment. Constructed to fit 1-7/8 in (48 mm), 2 in (51 mm), and most 2-5/16 in (59 mm) couplers, it provides a versatile solution for various towing applications. The lock adds essential protection whether you are at home, on the road, at a campsite, near a marina, or on a job site, where trailers might be unattended. The advanced locking mechanism is engineered to resist both picking and prying, offering trailer owners a reliable way to deter theft and unwanted hitching. Additionally, its zinc construction is designed to withstand rust and corrosion, ensuring durability for outdoor performance. This makes it an excellent choice for anyone in need of a boat trailer lock, camper hitch lock, RV hitch lock, or trailer tongue lock. The product is compact and easy to store with your trailer hitch accessories and includes two keys for added convenience should you need a spare. Whether you are securing a trailer between trips, safeguarding equipment during seasonal storage, or seeking a visible deterrent against theft, the Master Lock 379ATPY provides dependable trailer security from a well-known and trusted brand in the locking market.