You've been around trailers long enough to know what happens when you skip the details. This lock slides into your 3-1/8" coupler latch and stays put when you're towing down the highway or parked for the night.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everyone. I'm Evangeline right here at etrailer. Today we're taking a look at our Infinite Rule trailer coupler latch lock. This is designed specifically for trailer couplers that require a three inch and an eighth of an inch span. So, whether your coupler is smaller or right up there to that measurement, this is something that will work for adding some security to your trailer. This goes by several different names.
Pin lock, coupler latch lock, pin latch lock. But the main thing that it does is when there is a little opening on your trailer coupler, whether it's something like this Demco, or you have just a regular trigger style latch, you'll see a small hole there and this pin will fit through that hole. The main purpose is that this prevents that trigger from being pulled or that latch from lifting. A lot of people will add this lock when their trailer is parked. That way you can keep it parked and not have to worry about someone coming out with a ball mount and latching onto your trailer.
Now, people might still be able to lift up your trailer, whether it's by the safety chains or by half having the ball mount on there, but it's not gonna be a safe connection. And you may also remedy that with around the coupler lock options for that full security. A latch lock is also helpful when you are hooked up to the trailer. Maybe both your truck and your trailer are parked and you wanna make sure no one unhooks the trailer and runs off with it. Not being able to unlatch means that ball mount stays in place and you have that extra security there too.
So this comes a part two pieces, and you do get two keys with this lock. And when you need to engage it, you just put the two pieces together and then you have to turn the key as if you we inchesre threading a bolt. There's a good amount of thread to this lock, so I recommend just turning until it doesn't turn anymore and then lining it up with one of the notches on the lock face, and that way you'll be able to take your key out. So that part confuses some people, but once that's out, you can then put the dust cap on and that prevents dirt and debris from going inside that lock barrel. If you're looking to add some safety as you have your trailer parked, then a coupler latch like this is very helpful.
The fact that this can work with different types of trailers, different shapes and sizes, especially with that three inch and an eighth of an inch length is useful, especially if you have multiple trailers or you're not sure what type of trailer you're borrowing or renting or using for the weekend. With that in mind, a lot of people do like to get sets or kits where they can secure both the coupler latch and maybe their ball mount or their hitch receiver. Infinite Rule does have several variations of this lock, depending on what type of trailer you have and depending on what type of ball mount you have too. So if at any point you're just not sure what your options are, feel free to give us a call. Let us know what you're driving and what you're towing, and we'll help you find the right fit for your adventures. Now this is gonna be very plain, very simple, but very helpful with its stainless steel construction, even in the rain or the shine. This will look good and work well on your trailer. What you just saw was a look at the Infinite Rule coupler latch lock that is three inches and an eighth of an inch in span at etrailer. My name's Evangeline. I hope this helped you out.
Ratings & Reviews
Excellent build quality & locking mecha nism.
Team worked diligently to get me the pr oduct!
I thought the price was to high compared to some other products I looked at. but I've always been a believer in you get what pay for, I was not disappointed this thing functions great the finish is super and i have confidence that it will keep my trailer secure.
Although the lock was expensive, it will be extremely tough to remove without a key. It's exactly what I needed to protect my trailer from theft.
High quality piece
I think this coupler lock will do the trick... Only time will tell, I hope my trailer will stay safe by using it. Seems well made and secure.
Works great for my coupler which has a slightly wider trigger.
It looks like it’s a nicely built tongue lock system. When it was delivered and I opened it, the finish was already scratched. Kind of strange, as it was packaged nicely. Should also be a great visual deterrent.
Love the lock!
I searched everywhere for something like this. I like that it's nice and hefty and seems like it will be secure. I have the new Wallace Forge coupler on my RV which requires a wider span than the smaller one's. This fits my coupler but I do have one complaint. The pin is only 1/4 inch diameter and my coupler has a much larger hole but your site did not carry the larger pin, so I had to settle. If you have the larger pin I would be happy to exchange the 1/4 inch pin.
Even tho this wound up not working with my trailer, the lock seems well built and sturdy. Maybe I'll find a use for it down the road.
The coupler functions as advertised. Ease of installation and a visual deterrence for “courious” passersby. I would definitely recommend this lock.
Nice locks seem to be really well made. They look great too.
Very smooth working lock assembly.
I had a similar type coupler lock on my utility trailer that had begun to corrode because it was not made of stainless steel. I am using this one on my new vacation trailer along with an extreme duty coupler lock.
Love it! It’s solid and well made. Just make sure you order the right span length for your trailer lock. I paired it with the Bulletproof Hitch lock. My trailer is safe!
Pior to purchasing this lock from etailer I bought several competitive trailer lockks from big box stores. All were junk compared to this one. I was hesitatnt to purchase when I saw the price but I would have saved a lot of money and disappointment had I purchased this one first. I will not stop a very determined thief with power tools but ti is far superior to anything else I tried.
Excellent product. I am very pleased with it, and with the customer service I experienced.
Going to work great-thanks for the help selecting for my Dexter C200 hitch.
Finally found a couple lock that not only fits, but also looks like it's very durable. Thank you!
Nice and heavy duty
Fit just as I expected after taking a measurement and after looking at most 1/4” pin locks for sale, I think this one is the most robust
This product was as advertised and fit nicely on my 2 5/16” coupler. There weren’t any instructions included with it but it was pretty straightforward to figure out how to install it. I am looking forward to using it the next time I go fishing.
Fits nicely and looks great too.
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