Keyed Alike Trailer Lock Set - Universal Tow & Store Kit

In this review the RETRUE keyed alike trailer lock set is evaluated for everyday trailer owners who want a single solution to secure a trailer during towing and storage. The bottom line: it is a practical kit that combines an adjustable coupler lock, two hitch receiver pins and a tongue locking pin that share the same keys, making it easiest to manage security with one set of keys while offering solid corrosion resistance for outdoor use.

Key Features

• Universal adjustable coupler: The coupler lock has 11 locking positions and fits common 1-7/8, 2 and 2-5/16 in couplers, so it works with most small to medium trailers.
• Two receiver pins: The kit includes a 5/8 in pin with 2-4/5 in effective length and a 1/2 in pin with 2-1/5 in effective length to cover different hitch receiver sizes.
• Tongue lock pin: A 1/4 in black tongue lock pin secures latch-type couplers with a maximum span up to 3/4 in for added theft deterrence.
• Keyed alike convenience: All three locks share the same four keys, reducing the hassle of carrying multiple key sets when hooking up or storing a trailer.
• Durable materials: Built with an aluminum body and high-strength A36 steel components for cut and shear resistance and improved weather resistance.
• Upgraded cylinder and keys: Enhanced lock cylinder and thicker keys aim to make picking or breaking the key harder and increase long-term reliability.

Who It's For

This kit is a good fit for trailer owners who need a simple, all-in-one locking solution for both towing and storage, especially those with 1-7/8, 2 or 2-5/16 in couplers and common receiver sizes. It is also suited to users who value having one key for multiple locks to reduce complexity.

It is less appropriate for owners who need the highest level of heavy-duty security or military-grade locks, or those who require custom-dimension locks beyond the span and pin sizes included. Pros wanting hardened steel U-bolts or disk-style locks for commercial trailers may look elsewhere.

Pros & Cons

Pros

• Keyed alike system makes daily use and storage simpler by using four identical keys for all three locks.
• Adjustable coupler lock fits the most common trailer ball coupler sizes, reducing fitment worries.
• Materials and finish provide rustproof, weatherproof protection for long outdoor exposure.
• Includes multiple receiver pin sizes to cover several towing setups without buying extras.

Cons

• Some customers report mixed experiences with key durability, so aggressive users may see keys wear sooner than expected.
• Not marketed as a high-security solution for commercial or high-risk theft environments.

Specifications

Kit contents	Universal coupler lock, 2 hitch receiver pins, 1 tongue lock pin, 4 keyed alike keys
Coupler fit	Adjustable, fits 1-7/8, 2 and 2-5/16 in couplers (11 positions)
Receiver pin sizes	5/8 in pin (2-4/5 in effective), 1/2 in pin (2-1/5 in effective)
Tongue lock pin	1/4 in black pin, fits latch-type couplers up to 3/4 in span
Materials	Aluminum body and A36 high-strength steel construction
Keys	4 keyed alike keys, enhanced thicker key design
Warranty	120 days warranty and 100% return for quality issues

Our Verdict

The RETRUE keyed alike trailer lock set is a practical, value-oriented choice for recreational trailer owners who want straightforward protection with the convenience of shared keys. It covers the common coupler and receiver sizes, resists weathering, and reduces key clutter, making it a good buy for most personal trailers; those needing extreme security should consider hardened commercial-grade alternatives.

Frequently Asked Questions

Will the coupler lock fit my trailer ball coupler?
The coupler lock is adjustable with 11 positions and is designed to fit most 1-7/8, 2 and 2-5/16 in couplers.

Do all locks use the same key?
Yes, the kit includes four keyed alike keys so the coupler lock, both receiver pins and the tongue pin all use the same key.

Is the set weatherproof for long outdoor storage?
Yes, the components use an aluminum body and A36 steel parts with a rustproof finish intended for outdoor and towing use.