RETRUE 1/4" Adjustable Trailer Coupler Tongue Lock | 7/8" to 3"

Universal Latch Coupler Fit:
This 1/4 inch trailer tongue lock secures latch-style couplers on RV trailers, utility trailers, boat trailers, cargo trailers, and camper trailers. Its compact design provides reliable towing protection for everyday use.

Anti-Theft Hitch Protection:
By securing the latch area, this durable anti theft trailer lock helps prevent unauthorized connections and unwanted towing. It also functions as a reliable coupler latch lock for parked, stored, or unattended trailers.

Quick Pin-Style Design:
The simple pin structure allows fast installation and removal without complicated tools. For users searching for a trailer hitch lock, this compact solution delivers convenient security for campsites, jobsites, travel stops, and home storage.

Reliable Trailer Security:
Built for outdoor durability, this trailer coupler lock protects common towing setups against tampering and theft. It also supports trailer security lock, RV trailer lock, boat trailer lock, utility trailer lock, and tow hitch lock applications.

Shipping:
We ship our products primarily through USPS/UPS. All items will be shipped within 72 business hours upon receipt of payment (except Saturday and Sunday). Orders placed on weekend will be shipped within 4 days.

Returns:
Items purchased from RETRUE may be returned in original unused condition within 30 days from the date of purchase for a refund, to the original form of payment. All returns must be pre-approved by RETRUE. Otherwise, unauthorized returns will not be accepted.

The RETRUE Trailer Tongue Coupler Lock features a 1/4 inch diameter coupler pin designed for latch-type trailer couplers with a maximum span of 3/4 inch. The lock body is constructed from high-strength zinc alloy with a corrosion-resistant black coating, while the coupler pin is zinc plated to improve durability and resistance to rust. The lock includes a protective rubber cap that helps shield the lock cylinder from moisture and debris. The overall lock length measures approximately 44 mm, with a height of about 45 mm and an internal pin span of 19 mm. Each package includes the trailer coupler lock and two matching keys.