1. Trailer Coupler Locks
  2. Buyers Products
  3. Latch Lock
  4. Keyed Unique
  5. Universal Application Lock
Buyers Products Coupler Latch Lock - Butterfly Style - 1/4" Pin - Zinc Plated Steel

Buyers Products Coupler Latch Lock - Butterfly Style - 1/4" Pin - Zinc Plated Steel

Item # 337BCL500
lowest price pledge
Retail:$21.70
Our Price: $9.09
You Save: 58%
Trailer Coupler Locks
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.39 lbs
Quantity: 
In Stock
Buyers Products Latch Lock - 337BCL500
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Butterfly-style coupler lock helps prevent theft of your trailer, whether it's hitched to your tow vehicle or in storage. Lock with 3/4" span and 1/4" pin diameter secures most trigger-style coupler latches. Zinc-plating resists rust. Lowest Prices for the best trailer coupler locks from Buyers Products. Buyers Products Coupler Latch Lock - Butterfly Style - 1/4" Pin - Zinc Plated Steel part number 337BCL500 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (8)
  • Q & A (1)
  • Videos (2)
  • Photos
  • Why etrailer?

Buyers Products Trailer Coupler Locks - 337BCL500

  • Buyers Products
  • Latch Lock
  • Keyed Unique
  • Universal Application Lock

Butterfly-style coupler lock helps prevent theft of your trailer, whether it's hitched to your tow vehicle or in storage. Lock with 3/4" span and 1/4" pin diameter secures most trigger-style coupler latches. Zinc-plating resists rust.


Features:

  • Coupler lock secures the trigger latch on your trailer's coupler to deter theft
    • Trailer can't be removed from your tow vehicle when locked onto ball
    • Would-be thieves can't secure your unhitched trailer to their tow vehicle
  • Solid steel pin offers superior strength and durability
  • Yellow zinc plating resists rust
  • 2 Keys included


Specs:

  • Application: trigger-latch-style ball couplers
  • Inside pin length (span): 3/4"
  • Pin diameter: 1/4"
  • 1-Year warranty


BCL500 Buyers Products Coupler Latch Lock - Butterfly Style - Zinc Plated Steel




California residents: click here


Video of Buyers Products Coupler Latch Lock - Butterfly Style - 1/4" Pin - Zinc Plated Steel

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




Video Transcript for Buyers Products Coupler Latch Lock Review

Randy: Hey guys, it's Randy here at etrailer.com. Today we're taking a look at some trailer security. Basically what we have here is a coupler lock from Buyers. I really like the design of this lock. I think it's different than some of the standard pins and locks that just slide on. They call this more of a wing style or a butterfly style.So we've got a pin that goes through the coupler hole, and then we'll use our key.

And as we screw that in, it draws it together. It keeps everything nice and secure. Now whether you're a new trailer owner or an existing trailer owner, trailer security is something you do want to keep in mind. It's going to help prevent your trailer from disappearing. Nothing worse than going to the storage lot to pick up your boat and it's not there.

You know what I mean So this is going to give you a lot of peace of mind.It's not that difficult to use. And overall, it's going to provide years of good service. When we take it off it's actually serviceable inside. So unlike a lot of other locks to where they can get corrosion in there and not work, because these do generally stay outside. This we can service and make sure it works for years.Now as far as if would own this lock, I certainly would.

The aspect of being able to get in there and maintain it I think is going to make this probably the last lock you'll have to buy for your trailer. I'm not too concerned with ball mount security. I use just the cheap ones. So it's not really a big issue there for me, but if you have an aluminum or a nicer ball mount it might be a good idea to protect that as well.As far as the other straight coupler locks. I like that we don't have the accessibility very well in there to that pin.

It's going to make it much harder to bypass and what we have with just a pin that sticks through and a lock that slides on. Those can be cut pretty easily. Where in this situation, it's really not an issue.Overall, as you can see, there's a nice finished quality here to it. Going to help to resist some corrosion with that finish on it. And then it does come with the two keys. That's of course, going to let you store one and keep one in an extra spot in case you forget a set.But here's something that I really like. While you don't have to remove this side to get it to lock, right You can just move that out of the way, slide it through your coupler and bring that back in. If you do decide that you want to remove this completely, there's a little O-ring here. We're going to take that O-ring off. With that O-ring off we can now access our tumbler and the key way. You see as we bring our key in and out that moves those up and down so we can open it or not open it. But you can service this. So if it starts to get a little bit tight or doesn't want to cooperate, just use a little bit of lubricant in there, and of course in that housing, and it's going to be right back to new.So this isn't going to be something you're going to have to replace every year, every two years, because it's corroded and it just won't work properly anymore. If it starts to get a little bit tight, we'll just take it apart, run some lubrication in there and it will be back good as new. You see, pretty easy to get put right back together.As far as what this is going to work on, you can see our pin right here. It's designed for a 1/4" hole. So a lot of couplers are going to have that size. The actual usable width of it here is going to be about 3/4". And then from the inside of the pin to the barrel here, it's about 5/8". So as long as that fits into your range, this will be a good product. I only like to open it up about that far, place it in, rotate it over. And then as we turn the key, of course that's going to bring that together. Gives us really good security. Now at that point, we'll know whether it's connected to our truck. We don't have to worry about it coming loose, but also if we've got it stored somewhere, it's not going anywhere..


Customer Reviews

Buyers Products Coupler Latch Lock - Butterfly Style - 1/4" Pin - Zinc Plated Steel - 337BCL500

Average Customer Rating:  4.4 out of 5 stars   (8 Customer Reviews)

Butterfly-style coupler lock helps prevent theft of your trailer, whether it's hitched to your tow vehicle or in storage. Lock with 3/4" span and 1/4" pin diameter secures most trigger-style coupler latches. Zinc-plating resists rust.

- 337BCL500
by:

The product is better than average, however VERY disappointed that I could not order locks KEYED-A-LIKE. I have several trailers and I find it very disturbing I have to have several keys. Yet per the video it's easy to change the pins. I do not want to learn lock smithing.



- 337BCL500
by:

I ordered a spare tire holder for my boat trailer. The tire holder needed to be angled away from the boat on the trailer. I found exactly what I was looking for on etrailer.com, but it was expensive! I found out why it cost so much when the trailer holder arrived...the product was made with excellent workmanship and material, I was very surprised by the quality of this item. The sales team at etrailer was very professional and helpful...since my initial order I have no ordered other items and have been very happy with the online help I have received.



- 337BCL500
by:



- 337BCL500
by:

Seems to work and great price. Four stars because you it feels a little cheap.



- 337BCL500
by:

Works 100%. Very happy. Thank you very much.



- 337BCL500
by:

Get what you get for the price..does not work the best on 2 5/16th coupler. Should have listened to the sales associate who tried to tell me so.



- 337BCL500
by:

I have had this before and really liked it. I left it on my bumper and forgot it was there. This is why I am getting new.



- 337BCL500
by:

good product


8
8

Ask the Experts about this Buyers Products Trailer Coupler Locks

  • Recommended Keyed Alike Coupler Latch Lock
    I have a solution for you, but the Buyers Products Coupler Latch Locks # 337BCL500 is not available as a "keyed alike" lock. I recommend using the etrailer Trailer Coupler Latch Lock - 7/8" Span - 1/4" Diameter - Chrome - Keyed Alike # e98889, which can be ordered keyed alike. These are made from durable steel and have a nice chrome finish, and the locks have dust covers to keep the moisture and elements out, so they're going to last a long time. I've linked a short review video of these...
    view full answer...



  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality trailer coupler locks for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer coupler lock information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Cole B
Installed by:
Cole B
Employee Randy B
Installed by:
Randy B
Employee Chris R
Video Edited:
Chris R
Employee Zach D
Video by:
Zach D
Employee Kristina F
Written by:
Kristina F

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.