Retrue Adjustable Ball Lock Trailer Coupler Security System – Heavy-Duty Anti-Theft Hitch Lock for 1-7/8″, 2″, and 2-5/16″ Couplers

Description

Secured in Seconds: Universal Anti-Theft Trailer Ball Lock

Don’t leave your trailer vulnerable when it’s unhooked. The RETRUE RTL005 Universal Coupler Ball Lock is the ultimate deterrent for “hit-and-run” trailer theft. By filling the coupler socket and locking firmly into place, it prevents any unauthorized vehicle from hitching up and driving off with your investment.

Experience Unmatched Stability & Towing Security

Leaving your trailer unprotected shouldn’t feel like a gamble.
The Retrue Trailer Coupler Ball Lock is engineered to modernize your trailer’s anti-theft protection, securing your hitch coupler with cast iron strength and weatherproof reliability. Designed for 2-5/16” couplers, this trailer hitch lock prevents unauthorized towing by blocking ball insertion completely, protecting your cargo, boat, camper, or car hauler at all times.

Whether you’re parking at home, campground, jobsite, or storage lot, this ball-style coupler lock delivers the security your trailer deserves.

Key Performance Features

• Heavy-Duty Cast Iron Construction:Built for long-term outdoor protection, our cast iron trailer lock resists cutting, drilling, and prying, providing superior theft deterrence compared to standard steel or plastic trailer locks.
• Perfect Fit for 2-5/16” Couplers:Specifically engineered for 2-5/16 trailer couplers, making it ideal for:

1. 1. Boat trailers
   2. RV trailers
   3. Utility trailers
   4. Car haulers
   5. A-frame trailers

• Weatherproof & Rust-Resistant Design:With a waterproof PVC coating and corrosion-resistant core, this weatherproof hitch lock performs reliably in rain, snow, mud, and coastal environments.
• Ball-Style Anti-Theft Mechanism:The ball-style coupler lock completely fills the coupler cavity, preventing hitching even if thieves attempt to bypass external locks.
• Dual Protection Lock System:Integrated lock cylinder with dust cap ensures smooth locking operation while blocking dirt, debris, and moisture intrusion for long-term reliability.

Installation & Professional Fitment

Designed for serious DIY users, RV owners, and professional fleet operators, this coupler lock provides instant, tool-free security.

• Installation Method：No drilling required. Simply insert the lock into your trailer coupler and secure it using the built-in locking mechanism. This flat lip trailer lock and flanged coupler lock design ensures compatibility with most coupler styles.
• Comprehensive Package Includes：Everything needed for immediate, professional-grade trailer protection.

1. 1. Heavy-duty cast iron coupler lock
   2. Integrated locking core
   3. Protective weatherproof coating
   4. Set of security keys
   5. Detailed user manual

• Expert Tip：For best results, use this lock alongside wheel locks or hitch pin locks to form a complete trailer anti-theft system—especially for overnight or long-term parking.

Why Choose Retrue

Because protecting your trailer should feel confident, solid, and worry-free, not uncertain.
With Retrue, you don’t just lock your trailer—you upgrade your entire trailer security system, ensuring peace of mind wherever your journey takes you.

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