Trailer Coupler Lock Set - 2 Keyed Alike Locks with 4 Keys

In this review the focus is on a practical security solution for trailer owners who need multiple locks that operate with a single key. The set includes two universal trailer coupler/tongue locks that are keyed alike, so the same key opens both locks, and each lock ships with two keys for a total of four keys. The biggest reason to buy is straightforward: it simplifies access when managing more than one trailer or multiple lock locations while providing a sturdy, corrosion-resistant design backed by a limited lifetime warranty.

Key Features

• Keyed alike convenience: Both locks use the same key so one key controls multiple locks, reducing hassle when moving between trailers or hitch points.
• Four keys included: Each lock includes two keys for a total of four, so there are spare keys for drivers or storage.
• Universal fit: The lock fits 1-7/8in, 2in and most 2-5/16in couplers from many common manufacturers, making it compatible with a wide range of hitches.
• Impact-resistant design: The lock rests on top of the coupler and rotates when struck, which helps resist blunt-force attacks from hammers or pry bars.
• Reinforced zinc construction: Zinc die-cast construction provides rust resistance and higher impact strength than common alternatives for durable outdoor use.

Who It's For

This set is ideal for owners of trailers, RVs, or equipment trailers who need multiple locks that operate with a single key, such as fleets, owners with two trailers, or those who secure multiple locations on the same trailer. The universal sizing makes it a good choice for users who regularly switch hitches or own trailers from different manufacturers.

Those who require keyed-alike locks across more than two locks should consider ordering the larger keyed pack option, since separate 2-packs will not automatically share the same keying. If you need a heavy-duty, high-security cylinder with advanced anti-pick features beyond the robust physical design described here, a specialized high-security lock may be a better fit.

Pros & Cons

Pros

• Two locks keyed alike provide convenient single-key operation across both units.
• Includes four keys so spares are available without additional cost.
• Universal fit covers 1-7/8in, 2in and most 2-5/16in couplers for broad compatibility.
• Durable zinc die-cast construction resists rust and handles impact well.

Cons

• Ordering two separate 2-packs will not yield all locks keyed the same; a 4-pack is required for four keyed-alike units.
• The design focuses on blunt-force resistance; buyers wanting advanced cylinder security should evaluate specialty locks.

Specifications

Product type	Trailer coupler/tongue lock set
Pack quantity	2 locks
Keys included	4 keys total (2 per lock)
Coupler compatibility	1-7/8in, 2in and most 2-5/16in couplers
Material	Reinforced zinc die-cast
Warranty	Limited lifetime warranty

Our Verdict

The keyed-alike 2-pack is a practical, value-oriented choice for trailer owners who want uncomplicated single-key control across two locks and a durable, corrosion-resistant design. It offers broad compatibility and sensible security for most tow-away theft scenarios, though buyers needing more than two identical keys or specialized cylinder protection should select the appropriate pack or a different lock model.

Frequently Asked Questions

Will these two locks open with the same key?
Yes, the two locks in this 2-pack are keyed alike so the same key opens both included locks.

How many keys are included?
Each lock comes with two keys, so the 2-pack includes four keys in total.

Do these fit all coupler sizes?
The lock fits 1-7/8in, 2in and most 2-5/16in couplers from common manufacturers; always verify fit with your coupler model.