RETRUE Universal Trailer Hitch Coupler Lock — Black, Fits 1-7/8" 2" 2-5/16", Heavy-Duty Weatherproof

RETRUE's Universal Trailer Hitch Coupler Lock is an adjustable, heavy-duty steel lock that secures 1-7/8", 2" and 2-5/16" trailer couplers against theft and tampering.

This hitch coupler lock combines an adjustable fit with reinforced materials to protect trailers while parked or in transit. Built with a robust A36 steel U-bar, an aluminum lock housing, and an upgraded cylinder and keys, the design focuses on impact and cut resistance while remaining weatherproof. The lock includes multiple locking positions for compatibility across common coupler sizes and is backed by a 120-day warranty and responsive customer support.

Will this lock fit my trailer's coupler size?

The RETRUE coupler lock uses an adjustable mechanism with 11 locking positions to cover the most common ball sizes. It is specifically engineered to fit 1-7/8", 2", and 2-5/16" couplers without adapters.

• 11-position adjustable setting for precise fit
• Direct compatibility with 1-7/8", 2", and 2-5/16" couplers
• Tool-free installation and removal

How tough is the lock against cutting or forced entry?

The lock combines a thicker, wider U-shaped steel bar with an aluminum body reinforced by high-strength A36 steel components to resist cutting and prying. The upgraded cylinder and beefier keys increase resistance to picking and twisting attacks.

• Wider, thicker U-bar for better shear resistance
• A36 steel reinforcement in critical areas
• Complex cylinder design and thicker keys to deter lock tampering

Can this lock handle outdoor exposure and road conditions?

Yes—the materials and finish are chosen for rust and weather resistance so the lock can remain on the coupler during typical use. Corrosion-resistant components reduce maintenance and help the lock operate smoothly in wet or dusty environments.

• Rustproof and weatherproof construction for long-term outdoor use
• Durable finish resists road salt and moisture
• QC-tested to ensure consistent performance

What warranty and customer support come with the RETRUE lock?

RETRUE offers a 120-day warranty and round-the-clock customer service to assist with questions, replacements, or troubleshooting. If you encounter any issue, their support team can be contacted through the product page's "Ask a Question" option.

• 120-day limited warranty included
• 24/7 customer support via the product page
• Responsive assistance for fit or function concerns

Who this is for: Drivers, fleet managers, and trailer owners looking for a simple, sturdy locking solution will appreciate the RETRUE Universal Trailer Hitch Coupler Lock. It's suited to anyone who needs a versatile lock that fits multiple ball sizes, stands up to outdoor exposure, and offers upgraded anti-tamper features without complex installation. If you tow boats, utility trailers, campers, or landscaping equipment and want to add a visible, durable theft deterrent, this lock is designed for that purpose.