Best Universal Trailer Locks

1. Master Lock Black Universal Size Trailer Hitch Lock, Trailer Coupler Lock for Securing RV’s, Horse Trailers, Tool Trailers and More, 379ATPY

The Master Lock Black Universal Trailer Hitch Lock keeps your trailers secure. It fits most coupler sizes, making it perfect for RVs, horse trailers, and more.

This lock works with 1-7/8 in., 2 in., and 2-5/16 in. couplers. It’s made of rust-resistant zinc and comes with two keys.

Its advanced locking mechanism resists picking and prying. This lock is durable and reliable for all your trailer needs.

2. METOWARE Universal Trailer Hitch Locks, Adjustable Heavy-Duty Trailer Coupler Ball Locks Fit 1-7/8 Inch, 2 Inch, 2-5/16 Inch Couplers with 2 Keys

METOWARE Universal Trailer Hitch Locks fit 1-7/8”, 2”, and 2-5/16” couplers. They are easy to install and remove with 11 locking positions. Made of high-strength aluminum and iron, they resist rust and corrosion.

The premium zinc alloy core ensures top-notch security. A rubber cap protects the lock from dust and water, making it durable for all weather.

3. METOWARE Trailer Coupler Lock Universal Adjustable Heavy-Duty Steel Trailer Hitch Lock, Anti Theft Trailer Ball Lock Towing Lock for Towing Trailer Security Fits 1-7/8″,2”, 2-5/16″ Coupler Yellow

Keep your trailer safe with the METOWARE Trailer Coupler Lock. This heavy-duty steel lock fits most couplers and comes in a bright yellow color for easy visibility. It’s easy to use and adjusts to 11 positions for a perfect fit.

The lock is weatherproof and rust-resistant, so it lasts long. Its anti-theft design ensures your trailer stays secure, no matter where you go.

4. Master Lock Trailer Coupler Lock, Universal Size Fits 1-7/8″, 2″, and 2-5/16″, 389DAT

The Master Lock Trailer Coupler Lock keeps your trailer safe and secure. Its universal size fits most couplers, making it a perfect fit for your needs. The bright red finish acts as a bold warning to potential thieves.

This lock has an advanced locking mechanism that resists picking and prying. It’s also built to last, with rust and corrosion resistance for long-term use.

Installation is quick and easy, so you can secure your trailer in no time. The lock’s durable design ensures it stays reliable, giving you peace of mind wherever you go.

5. RETRUE Universal Coupler Lock Trailer Locks Ball Hitch Trailer Hitch Lock Adjustable Security Heavy-Duty Steel Fits 1-7/8 Inch, 2 Inch, 2-5/16 Inch Couplers, Yellow

RETRUE Universal Coupler Lock keeps your trailer safe. It fits most couplers and comes with 2 keys. The bright yellow color makes it easy to see.

This lock is strong and durable. It’s made with heavy-duty steel and rustproof materials. The upgraded design makes it harder to break.

If you have any issues, RETRUE offers a 120-day warranty. Their 24/7 support is ready to help you quickly.

6. Trailer Hitch Locks with Keys, Universal Size Fit 1-7/8,2-5/16,2 Inch Ball Hitch Coupler Lock, Adjustable Heavy Duty Steel Trailer Tongue Lock for Boat, Trailers and RV, Anti-Theft Hitches, Red-1 Pack

Keep your trailer safe with this heavy-duty hitch lock. It fits 1-7/8, 2-5/16, and 2-inch hitches, making it universal for boats, RVs, and more. The bold red color acts as a visual theft deterrent, while the ultra-safe lock core requires a full key turn for added security.

Made from high-quality steel and aluminum, this lock resists rust and corrosion. Its adjustable design ensures a perfect fit for your trailer. Installation is quick and easy, so you can secure your trailer in no time.

Protects your trailer. Fits multiple sizes. Built to last.

7. Master Lock – (3) Keyed Alike Universal Trailer Coupler Locks w/6 Keys, 379KA-3

Secure your trailer with ease using the Master Lock 3-pack of keyed alike coupler locks. Each lock opens with one key, and you get six keys total for convenience.

Protect against theft with a universal design that fits most couplers. The reinforced zinc build resists rust and withstands heavy impacts, making it tough to break.

Simple to install, rekeyable, and backed by a lifetime warranty. These locks offer peace of mind for unattended trailers.

8. RETRUE Universal Coupler Lock Trailer Locks Ball Hitch Trailer Hitch Lock Adjustable Security Heavy-Duty Steel Fits 1-7/8 Inch, 2 Inch, 2-5/16 Inch Couplers, Bright Yellow, Light Weight

The RETRUE Universal Coupler Lock fits 1-7/8”, 2”, and 2-5/16” couplers with 11 adjustable locking positions. It comes with 2 keys for easy access. Its bright yellow color makes it highly visible and acts as a deterrent.

Made with aluminum and A36 steel, this lock is rustproof and weatherproof. It offers strong cut and shear resistance for maximum security. The upgraded lock cylinder and thicker keys make it hard to crack.

Enjoy 120 days warranty and 24/7 support. Contact us anytime for quick, reliable help.

9. RETRUE Universal Coupler Lock Trailer Locks Ball Hitch Trailer Hitch Lock Adjustable Security Heavy-Duty Steel Fits 1-7/8 Inch, 2 Inch, 2-5/16 Inch Couplers Black & Silver

The RETRUE Universal Coupler Lock fits 1-7/8″, 2″, and 2-5/16″ couplers with 11 adjustable positions. Its heavy-duty steel design resists theft and external force. The rustproof, weatherproof build ensures long-lasting protection.

This lock features an upgraded cylinder with thicker keys for superior security. Enjoy 120-day warranty and 24/7 customer support for peace of mind.

10. Master Lock – Universal Size Fits 1-7/8″, 2″, and 2-5/16″ Couplers – Trailer Locks #389DAT, 2 Pack

The Master Lock Trailer Locks fit most trailer couplers. They come in a 2-pack for extra security. These locks are easy to use and hard to break.

The bright red finish warns thieves to stay away. Each lock has a different key, so they don’t match. This keeps your trailer safe from theft.

These locks resist rust and last a long time. They are simple to install and remove quickly. The advanced locking system stops picking and prying.