RETRUE Universal Trailer Coupler Hitch Lock

RETRUE Universal Trailer Coupler Hitch Lock is an adjustable, heavy-duty coupler lock with a weatherproof red cover and cap that fits 1-7/8", 2", and 2-5/16" couplers to deter theft and protect your trailer connection.

Keep your trailer secure when parked or stored with a lock engineered for broad compatibility and durable, weather-resistant construction. This RETRUE model combines an aluminum body, high-strength A36 steel components, and protective rubber coverings to resist cutting, shear force, and corrosion. The bright red waterproof cover increases visibility and helps protect the mechanism from rain, dirt, and road grime, while the upgraded lock cylinder and thicker keys raise tamper resistance.

How does this lock fit different coupler sizes?

The lock uses an adjustable design with 11 locking positions so you can set the arm to match three common ball coupler diameters. That flexibility eliminates the need for multiple locks and ensures a snug fit that reduces wobble when mounted. Two keys are included for convenient access while keeping a spare in a safe place.

• Adjustable arm with 11 positions for precise length setting
• Fits 1-7/8", 2", and 2-5/16" standard couplers
• Includes two reinforced keys for added convenience

What protection does it offer against theft and damage?

Construction combines an aluminum housing with A36 steel internal components to resist cutting and shear attacks. The lock's upgraded cylinder is more complex and uses thicker keys to increase picking and breakage resistance. Rubber-covered armrests and a switchable rubber boot over the cylinder reduce metal-on-metal wear and protect finishes.

• Aluminum body and A36 steel for structural strength
• Enhanced lock cylinder and thicker keys for tougher security
• Rubber armrests and cylinder boot prevent scratches and corrosion

How durable is the lock in bad weather and long-term use?

Designed to be rustproof and weatherproof, the RETRUE coupler lock resists corrosion from rain, mud, and salt. The included waterproof red cover and cap shield the locking mechanism from moisture and debris to help maintain smooth operation season after season. The bright color also acts as a visual deterrent to opportunistic thieves.

• Waterproof cover and cap protect against moisture and grime
• Rustproof materials for long service life in outdoor conditions
• High-visibility red finish discourages tampering

What support and warranty come with the product?

RETRUE backs this coupler lock with quality control checks and a responsive support promise. If you experience quality issues, the product includes a 120-day warranty and the manufacturer offers 24/7 customer support to help resolve problems quickly. That support ensures replacements or solutions if the product fails to meet expectations out of the box.

• 120-day warranty covering manufacturing defects
• Quality control certification for inspected units
• 24/7 customer support via the "Ask a Question" channel

Who is this for? This RETRUE trailer coupler hitch lock is ideal for boat owners, RV and travel trailer owners, landscapers, and anyone who frequently detaches and stores trailers. It suits users who want a single, adjustable lock that covers multiple coupler sizes, offers visible deterrence, and stands up to weather and daily wear. Choose this model if you need practical, reliable theft deterrence paired with easy operation and warranty-backed support.