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Use this sturdy, rustproof aluminum coupler lock with high-visibility yellow color to help prevent trailer towaway theft. Fits trigger-style, 2-5/16" ball couplers with flat lips. Can be keyed alike to match other etrailer locks.
Features:
Specs:
Note:
This heavy-duty coupler lock obstructs access to your trailer coupler to prevent would-be thieves from hitching your trailer to their tow vehicle and driving off with your gear.
The lock is constructed of extruded, tempered aluminum, making it strong and durable. The lock housing features a double nickel chrome finish, and the shuttered keyhole protects the inside of the lock from the elements. Complete with a yellow powder coat finish, this high-visibility coupler lock is both sturdy and rust resistant. And the bright color provides additional theft deterrent.
To install this lock on your coupler, insert the key and rotate it to release the locking pin. Slide the lock body onto the flat lip of your trailer coupler. Push the locking pin into the hitch ball socket to engage, rotate the key back to lock the pin in place, and remove the key.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
Ordered two keyed alike, if anyone has multiple trailers this is the way to go with one key fits all. I ordered two so I would have one for my toy hauler and gave one to my son for his travel trailer. We don’t need to worry about having keys available if one of us needs to move the others with this application. The lock fits great and seems like a secure lock to deter anyone with ill ideas.
Seems like a good product. I just started using it. It fit rather snug over the hitch which makes it a little difficult to install and remove. But I think that is part of the design.
Great to use same key for multiple coupler locks and locking hitch pins for multiple trailers
I bought two and it has been so nice not grabbing the wrong key since they are both keyed the same and I managed lose all my spare keys but one i was able to call and order two more. While speaking with the lady she was trying to look up my locks to find the key number having the one key just made it simpler. I had faith in her that she would be able to find my key info. I would suggest that you take a picture of your key number or write it down somewhere you will be able to remember to simplify your order
Really satisfied with the trailer coupler lock.
Very simple design. Probably could be sledge hammered off, but most of the battle is showing up, and this lock puts the word out that it will be annoying to have to deal with, so it's a great deterrent. Easy to install/remove with the key. Have to keep lubed though, as with any lock outside. Paint/coating is great.
Looks rigid enough to keep the criminals away
I have been using this lock for over a year now and it still work just as it did on day 1. No rust visible, and the key turns smoothly.
Great looking product. Works as advertised. I think most would-be trailer thieves would keep moving when they notice this lock. However, if the bad guy was motivated and prepared, I don't think this product would put up too big of a fight against a heavy prybar (I don't think a flat prybar would get this off, but a big long round bar prybar/crowbar definitely would). This is good security, not high security.
Wade
3/9/2024
Great product. I feel it’s a great deterrent for a would be thief. Bright color tells thief “not an easy target.”
Mike L.
3/10/2024
It was just what I ordered and works great. Delivered on time.
Still holding up - no complaints
I have ordered from etrailer before there quality is Great. Products Top of the line. Never had a problem with anything I purchased from them.
Delivery was on time.
This fits great on my Forest River RV Trailer with a flat lip on the tongue of the trailer. It is very easy to put on and take off and very secure on the trailer.
This is a nice lock. My trailer is a 2016 Riverside Retro and this lock fits on the coupler perfectly.
Excellent service
I'm really happy with this tongue lock. The hardest part in getting this thing in place was getting it out of the package! No frills, just quality! Thanks etrailer for another great product!
Mild B.
6/15/2025
Still working fine. I use it on my utility trailer. We sometimes leave for several days at a time. Having this lock on it gives me a level of security that itll still be there when I get home, something I never had before!
Received yesterday and appears to be well designed. Fit my RV fine and lock worked as expected. Will be putting to use in the next couple of months.
Works great!
Wayne
5/10/2026
Works great!
Works well for my application
Fits good. Had it keyed same as locks I purchased previously.
Perfect fit for my 2 5/16 hitch. Great deterrent.
Bought for my travel trailer. Unfortunately our hitch is “stubby” with a “ramp” piece to help guide the ball into the hole better which prevents the lock from sliding far enough on & lock. Decided to keep for use on jetski trailer instead of returning.
Great security item for my cargo trailer. I'll be picking up another one for my boat trailer.
No tweakers have tested it yet because German Shepherds that don't like strangers but it's a good deterrent I guess.
Mike L.
3/19/2026
That sounds like a great solution, Wade. Two GSD's and a good coupler lock should go a long way to protect you from the mayhem caused by the local Crystal Methodists.... If you're up against very determined foes trying to take your stuff, a layered solution works best. The dogs will certainly help, but the coupler lock will as well. Do you have a nearby place you could chain the trailer to? The more obstacles you can put in front of them, the more likely they'll go steal from somebody else. Sad to say that.
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Brady
12/14/2022
Still working great and looks almost new even after sitting outside for a year!