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  1. Trailer Tongue Lock
  2. Master Lock
  3. Fits 1-7/8 Inch Ball
  4. Fits 2 Inch Ball
  5. Fits 2-5/16 Inch Ball
  6. Latch Lock
  7. Surround Lock
Master Lock Set - Coupler Ball Lock, Locking Hitch Pin, and Coupler Latch Lock
Master Lock

Master Lock Set - Coupler Ball Lock, Locking Hitch Pin, and Coupler Latch Lock

Part Number: ML44VR
In Stock
$56.73
Retail:$81.35
You Save: 30%
Trailer Tongue Lock
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All-in-one defense system for keeping your trailer locked up and out of the wrong hands. Why fumble with a bunch of different keys? This keyed-alike set includes a coupler ball lock, a locking hitch pin, and a coupler latch lock. Great Prices for the best trailer tongue lock from Master Lock. Master Lock Set - Coupler Ball Lock, Locking Hitch Pin, and Coupler Latch Lock part number ML44VR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (13)
  • Q & A (0)
  • Videos (1)
  • Photos

Master Lock Trailer Tongue Lock - ML44VR

  • Fits 1-7/8 Inch Ball
  • Fits 2 Inch Ball
  • Fits 2-5/16 Inch Ball
  • Latch Lock
  • Surround Lock
  • Keyed Alike
  • Master Lock
  • Steel
  • Universal Application Lock

All-in-one defense system for keeping your trailer locked up and out of the wrong hands. Why fumble with a bunch of different keys? This keyed-alike set includes a coupler ball lock, a locking hitch pin, and a coupler latch lock.


Features:

  • Lock it down! The adjustable coupler ball lock (ML389DAT) blocks theft and unwanted hookups
    • Fits 1-7/8", 2", and 2-5/16" ball couplers
  • Lock it in! The locking hitch pin (2866DAT) secures your ball mount or accessory
    • Fits 1/2" and 5/8" receiver pin holes so you can use it on a 1-1/4" or 2" hitch
  • Latch it tight! The adjustable coupler latch lock (2847DAT) secures your coupler's trigger latch, blocking theft, hitched or unhitched
    • Fits most couplers and has 6 locking positions from 9/16" to 2-3/4" wide
  • Keyed Alike: All three locks are keyed alike because nobody likes a key ring full of confusion
  • Built to Last: Limited lifetime warranty for peace of mind


3895DAT Master Lock Lock Set - Coupler Ball Lock, Locking Hitch Pin, and Coupler Latch Lock





Video of Master Lock Set - Coupler Ball Lock, Locking Hitch Pin, and Coupler Latch Lock

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Master Lock Trailer Tongue Lock - Lock Set - ML44VR

Hi everybody. Andy here with etrailer.com. Let's take a really quick look at this Master Lock Set. Now, this all in one defense system is going to keep your trailer locked up and out of the wrong hands. You're not gonna have to fumble with a bunch of different keys because each of these locks are all keyed alike. And you're gonna get three keys here.

So one key is going to be able to operate everything here and you're going to get this adjustable coupler ball lock. And then you're going to get a locking hitch pin and then the adjustable coupler latch lock. And so let me go through each of these here for you. So I'm gonna go ahead and take the keys here. I'm gonna take one, slide it into the lock right here.

Lemme bring that up there so you can see, give it a turn. And then that's going to allow me to freely move this part here that's going to go into the ball. And I've got a coupler here, so let me bring that up. So I'm just gonna go ahead and drop that on there, lock that down. And then I'm just gonna make this as tight as possible.

You can see right there, put that in and then turn the key. And then I am locked so no one can come by and try to take off with my trailer. This is going to fit 1-7/8", 2", and 2-5/16" ball couplers. So it's gonna be very easy to operate, as you can see. I want to move over here to the adjustable coupler latch.

This is obviously gonna secure your coupler's trigger latch that's gonna help block theft and hitch your unhitched, whether you're hitch or unhitched. So I'm just gonna go ahead and put that through there. Make that as tight as I can as well, all the way up to that notch. There we go. Remove the key. And so this is gonna be very easy to use. You're not gonna be doing a whole bunch of struggling. As you can see, this lock here has a cap there that's gonna protect the keyway. And this is going to fit most couplers and it has a six because it has six locking positions from 9/16" to 2-3/4" wide. So you got quite a bit of flexibility there. Give you another closeup view here and I'll just go ahead and turn that key on the next notch there. Got that locked, replace that cap just like that. I'm gonna go ahead and remove this on that key hole and each piece of this set feels very solid. I think it's going to be long lasting for you. I like the red paint on this. It's kind of a very noticeable red color. So would be thieves will immediately notice that you've got your trailer protected. And then we have our locking hitch pin and this is going to secure your ball mount or accessory in your trailer hitch receiver. This is going to fit 5/8" receiver pin holes or 1/2" receiver pin holes. So you're gonna be able to use this lock with either a 1-1/4" or 2" trailer hitch receiver so you've got that adjustability. And again, just give you a brief demonstration of unlocking this and then I can put the half diameter pin on there. Lock it up, good to go, so very easy to use. I just wanted to really show you just how quickly and easily you're gonna be able to secure your items. An instruction sheet is also included and so if you decide that this set is going to be exactly what you need, that's great. We would love to hear back from you regarding how you're going to be putting this to use. Share your experience with us, if you will, of how you're gonna be using this set and what you're going to be protecting. You can either drop a comment or leave a review on this product page letting us know how you're gonna be using this set. And if you like, you could also send us some photos showing this set in action. Well, I think that's gonna wrap up our quick look today. I do hope that it was helpful for you. Again, my name is Andy, thank you for joining me.

Customer Satisfaction Score:

Ratings & Reviews

4.9

13 reviews
All-in-one defense system for keeping your trailer locked up and out of the wrong hands. Why fumble with a bunch of different keys? This keyed-alike set includes a coupler ball lock, a locking hitch pin, and a coupler latch lock.

by:

The hitch ball lock is coated with what feels like a rubberized paint. Not much chance for rust. The other locks work great and i appreciate the kick covers. I’m very confident that they will prevent the non professional theif.



by:

I bought and returned 2 different coupler locks that didn't fit my new camper(Amazon and Wal-Mart). This set works great! etrailer has never disappointed me.



by:

Was really looking for the ball lock. I got way more than I was expecting. This seems bulletproof...



by:

So worth it to have all of these things keyed the same!! Great lock set.



by:

GREAT USEING ON MY NEW 5X8 Aluminum Tra iler



by:

Just what I needed Thank You



by:

It arrived 2 days early and fit perfect ly!



by:

Superb product easy install, would recommend to any trailer owner.



by:

Well made and easy to use.



by:

Does what they were supposed to.



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See what our Experts say about this Master Lock Trailer Tongue Lock

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    Yes, it does David. The Curt Echo Wireless Brake Controller item # C51180 will plug directly into the 7-Way connector on your 2025 Tesla Model Y Long Range. You will then be able to connect the 7-way from your Casita trailer to the opposite end of the Curt Echo item # C51180. Have you had a chance to tow with your Tesla yet?
    view full answer...
  • Recommended Keyed Alike Coupler and Hitch Lock
    Hey Heather, unfortunately the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set # 3794DAT is keyed unique so it's not available to be keyed alike. Instead, you'd have to use something like the Master Lock Set # ML44VR which come with all three locks keyed alike. This kit also works with 1-7/8", 2", and 2-5/16" ball couplers and 1 1/4" and 2" trailer hitches. If there is anything else I can do for you, please feel free to drop a comment and let me know!
    view full answer...

Do you have a question about this Trailer Tongue Lock?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Andy C
Installed by:
Andy C
Employee Sabrina W
Written by:
Sabrina W

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