RETRUE Trailer Hitch Coupler Lock — Widened Gray, Heavy‑Duty A36 Steel, Fits 1-7/8"–2-5/16"

RETRUE Universal Trailer Hitch Coupler Lock is a heavy-duty, widened steel lock designed to secure 1-7/8", 2", and 2-5/16" trailer couplers against theft and tampering.

This reinforced coupler lock uses a thicker U-shaped shackle and A36 steel construction to fit oversized or irregular hitch balls that many standard locks cannot accommodate. Built for rough use and outdoor exposure, the lock combines a widened fit range with an upgraded anti-theft cylinder, multiple locking positions, and a rustproof finish so you can leave trailers, campers, and utility gear parked with greater confidence.

How does this lock fit different trailer couplers?

The RETRUE coupler lock offers an adjustable, widened U-shaped shackle and 11 locking positions to match a variety of coupler sizes. Its design accepts common ball diameters including 1-7/8", 2", and 2-5/16" and accommodates irregular shapes that narrow locks can’t clamp securely.

• Widened U-shape fits larger or offset hitch balls
• 11 locking positions for precise tension and clearance
• Works with 1-7/8", 2", and 2-5/16" couplers
• Adjustable fit reduces rattle and movement while towing

What materials and construction protect against cutting and weather?

This model combines high-strength A36 steel with aluminum-alloy components to balance durability and corrosion resistance. The thicker steel shackle resists cutting and prying, while rustproof finishes and a protective rubber cap on the cylinder prevent moisture and grime from degrading performance.

• A36 steel shackle for superior shear and cut resistance
• Aluminum-alloy body for reduced weight and rust protection
• Rubber dust cap shields the lock cylinder from debris and moisture
• QC-tested finish for long-term outdoor use

How secure is the anti-theft locking mechanism?

The lock uses an upgraded cylinder and thicker keys to increase pick resistance and operational longevity. While no mechanical lock is invulnerable, this design raises the difficulty and time required for forced entry compared with basic coupler locks.

• Upgraded lock cylinder with enhanced internal components
• Thicker, durable keys reduce bending and wear
• Rubber cap prevents dirt from jamming the mechanism
• 11-position key engagement for stronger, customizable locking

What warranty and support come with the RETRUE lock?

RETRUE provides a 120-day satisfaction warranty plus around-the-clock customer support for questions, replacements, or troubleshooting. Quick access to help makes it easier to resolve fit or function concerns after purchase.

• 120-day satisfaction guarantee for peace of mind
• 24/7 customer support via the seller portal
• Clear guidance on installation and fit adjustments
• Replacement assistance if a manufacturing issue arises

Who is this for: The RETRUE Universal Trailer Hitch Coupler Lock is aimed at trailer owners, RV and camper enthusiasts, landscapers, contractors, and anyone who leaves trailers or equipment unattended and needs a robust, flexible locking solution. Choose this if you have irregular or larger hitch balls, want increased resistance to cutting and picking, and prefer a lock built to resist weather and daily wear while backed by responsive customer support.