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5 Best Trailer Hitch Locks to Secure Your RV

5 Best Trailer Hitch Locks to Secure Your RV

A trailer hitch lock is one of the easiest and least expensive ways to deter would-be thieves from taking off with your RV trailer. There are many different types of hitch locks, and it can be hard to choose the best one for you. That’s why we’re looking at five of the best locks to secure your RV. 

Reese Coupler Lock for Travel Trailers | Product Review | Trailer Lock

What Is a Trailer Hitch Lock?

A trailer hitch lock is a lock for trailers. When you unhitch your trailer, this lock can protect it. Some locks secure your trailer to your tow vehicle, so theft can’t occur when you’re away.

Types of Locks

You have your choice of a couple of locks. Let’s take a closer look at each.

Coupler Locks

Use coupler locks after unhitching your trailer. These locks make it impossible for anyone else to hook your trailer up to their hitch. 

Receiver Locks

Use a receiver lock when your trailer is attached to your tow vehicle. A receiver lock is used in place of a hitch pin to connect your trailer and tow vehicle, making it impossible for someone to remove your trailer without the key to the lock. 

New to RV towing? We’ve got you covered!How to Tow an RV: The Beginner’s Guide

The 5 Best Trailer Hitch Locks for Your RV

We’ve rounded up five of the best locks for your RV. Whether you’re looking for a coupler lock, a receiver lock, or a combo pack with both, it’s all here. Different types of locks fit different trailers, but some are universal and work for almost any hitch

1. REESE 72783 Universal Coupler Heavy-Duty Lock

About: The Reese Towpower Universal Coupler Lock is an adjustable lock that will fit most couplers. This lock guards against tow-away theft by connecting to the coupler, preventing someone else from hitching up to your trailer.

This premium lock is aluminum and has a heavy-duty steel lock bar. It’s easy to install and remove, making it an ideal choice for those on the go. 

REESE Towpower 72783 Coupler Lock, Adjustable...
  • DIMENSIONS: 9” x 9” x 3”.Material:Steel
  • BUILT TO LAST: The REESE Towpower Universal Coupler lock is a...
  • UNIVERSAL FIT: Ratchet design is adjustable with 11 locking...

2. AMPLOCK U-BRP2516 RV/Trailer Coupler Lock

About: The AMPLOCK is a U-shaped coupler lock that fits two 5/16-inch couplers. This trailer hitch lock is rust-resistant and easy to use. The heavy-duty materials are near impossible to cut through. Yet, it still installs and uninstalls quickly and easily with the key. 

AMPLOCK U-BRP2516 RV/Trailer Coupler Lock (fits 2...
  • Molded to fit the specific shape of your trailer or Caravan (RV)...
  • Materials used by AMPLOCK provide good rust resistance for use in...
  • Easy to use with AMPLOCK’s push and lock system

3. Master Lock 389DAT Universal Size Trailer Lock 

About: The Master Lock 389DAT is a universal coupler lock for trailer hitches. This lock fits virtually all trailer couplers, so no worrying about measuring! It comes in a bright red color to discourage would-be trailer thieves from messing with your trailer.

The Master Lock has an advanced locking mechanism that resists picking and prying. And no two Master Locks are keyed the same, which adds even more security. 

Pro Tip: Get the perfect hitch ball for your trailer. We took a closer look at all the different trailer hitch ball sizes so you can Get the Right Size for the Job.

4. Master Lock 2866DAT Swivel Head Receiver Lock 

About: This Master Lock is a receiver locking hitch pin that fits ½-inch and ⅝-inch receivers. The ½-inch lock is rated up to 3,500 pounds, and the ⅝-inch is rated up 10,000 pounds. The Master Lock receiver hitch lock comes with a snap-on cover to protect it from wind, rain, dust, dirt, and snow. 

Master Lock Receiver Lock, 1/2 in. and 5/8 in....
  • Receiver lock provides added security and theft deterrence while...
  • 1/2 in. trailer hitch locking pin is rated up to 3,500 lbs (Class...
  • Locking head rotates 360 degrees allowing keyway to conveniently...

5. Master Lock Receiver and Coupler Lock Combo

The Master Lock trailer hitch combo lock comes with everything you need to keep your trailer secure, whether it’s hooked up to your tow vehicle, in storage, or at your campsite. The coupler lock can adjust to fit most trailer coupler sizes.

The receiver lock included in this combo has a convenient push-to-lock mechanism. This set comes with everything you need to keep your trailer secure. 

Master Lock Trailer Lock, Trailer Coupler &...
  • LOCK APPLICATION: Best used for vehicles, trailers, and RV hitch...
  • EASE OF USE: Receiver lock features convenient Push to Lock...
  • DURABLE DESIGN: Weather Tough seal and watertight cap provide...

Keep Your RV Protected from Theft with a Trailer Hitch Lock

Trailer hitch locks are one of the easiest and least expensive ways to deter RV trailer theft.

Keep your RV protected at all times by using both a coupler and receiver lock. Other methods you can use to deter RV theft include motion sensor lights, security cameras, parking in a well-lit area, alarms, high-security door locks, and wheel locks.

How do you protect your RV when you’re on the road? Drop a comment below.

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Dalton Bourne

Wednesday 29th of December 2021

The Master Lock trailer hitch lock is the lock I trust the most to use for my RV. I love how they built this lock, as its stainless steel construction makes for an extremely durable item that will help protect my trailer in the long run. It is also extremely versatile as it is capable of fitting Class I to IV joints, which makes it perfect for my Class III process.


Saturday 3rd of July 2021

Forgot to include a Wheel Chock Lock option!

David Cox

Saturday 3rd of July 2021

The Reese product and others like it can be cut off with an angle grinder. Not so with the Amplock, which is not cheap but certainly much less expensive than replacing a travel trailer. Also, we use a coupler lock (see below), though I also like the Master Lock version you posted--it's similar to the lockable hitch pin we use.

Silas Longshot

Saturday 3rd of July 2021

All the locks in this article may deter an 'honest' person. But someone out to get your rig would take only seconds to defeat such locks with only a simple large crow-bar. If you want to have the next guys rig stolen instead of yours, I suggest you get with gear. It's expensive, but every other trailer in the storage lot will be gone before this one is defeated.

Rachel Kaufman

Saturday 3rd of July 2021

What’s a good lock for 5th wheel

Mortons on the Move

Tuesday 3rd of August 2021

We've listed several good options in this article: