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  1. Trailer Tongue Lock
  2. Trimax Locks
  3. Latch Lock
  4. Keyed Unique
  5. Stainless Steel
  6. 3-1/2 Inch Span
Trimax Coupler Latch Lock - 1/4" Pin Diameter - 3-1/2" Span
Trimax Locks

Trimax Coupler Latch Lock - 1/4" Pin Diameter - 3-1/2" Span

Part Number: TMX78SR
In Stock
$25.38
Retail:$34.99
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Trailer Tongue Lock
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This coupler latch lock is designed for brake actuators that lock through the body to give you the security that keeps your gear right where it belongs. Fits coupler latches up to 3-1/2". It's tough weather resistant. Great Prices for the best trailer tongue lock from Trimax Locks. Trimax Coupler Latch Lock - 1/4" Pin Diameter - 3-1/2" Span part number TMX78SR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Trimax Locks Trailer Tongue Lock - TMX78SR

  • Latch Lock
  • Keyed Unique
  • Stainless Steel
  • Trimax Locks
  • 3-1/2 Inch Span
  • Universal Application Lock

This coupler latch lock is designed for brake actuators that lock through the body to give you the security that keeps your gear right where it belongs. Fits coupler latches up to 3-1/2". It's tough weather resistant.


Features:

  • Perfect fit: Fits coupler locks with spans up to 3-1/2" making it ideas for surge brake couplers that lock through the body.
  • Built to last: Made of stainless steel, this lock resists rust and corrosion for long-lasting durability.
  • Advanced locking cylinder: Harder to pick and drill than standard locks, with tube keys that are more challenging to duplicate.
  • Weather resistant: Includes a rubber cap to shield the lock from dirt and moisture, ensuring smooth operation in any weather.


Specs:

  • Application: fits surge brake couplers that lock through the body with up to a 3-1/2" span
  • Pin diameter: 1/4"


SXTC3 Trimax Coupler Latch Lock for Surge Brake Couplers Up To 3-1/2"




California residents: click here


Video of Trimax Coupler Latch Lock - 1/4" Pin Diameter - 3-1/2" Span

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




Video Transcript for Review of Trimax Locks Trailer Tongue Lock - Coupler Latch Lock - TMX78SR

Hi everybody. Andy here with etrailer.com. Let's take a real quick look at this TRIMAX coupler latch lock. Now, this coupler latch lock is designed for brake actuators that lock through the body to give you the security that keeps your gear right where it belongs. This is going to fit coupler latches up to three and a half inches long. And this lock features an advanced locking cylinder, so it's gonna be harder to pick and drill than standard locks.

And the tube keys that are included, you get two tube keys, as you can see, they're gonna be more challenging, typically, to duplicate. As you can see, I'm trying to get this cap off. This has a really tight rubber-tethered cap here, so it's gonna have a really good seal around this keyway. So it's weather resistant, it's good, that cap is going to do a great job of keeping moisture out, dirt, debris and things like that. So, just give you a brief demonstration.

Just give that a quarter of a turn, that's going to allow you to unlock the head and remove it. And then when you're ready to lock that back up, you'll just give it a quarter turn the other way, and then you'll be locked into place, just like that. But yeah, like I said, that cap's got a really good seal on it, just like that. So two keys included. It's keyed alike, one key to operate the lock, and the other key you can keep as a standby or a backup key.

Durable construction, stainless steel, it's gonna resist rust and corrosion, so it's gonna last you a good long time. And again, it's gonna surge brake couplers that lock through the body. I'm gonna give you some rough measurements here. The overall length, I'm gonna call it at about almost six and 3/4 inches long end to end, roughly. And that inside pin length or span right at three and 1/2 inches there.

Pin diameter is 1/4 of an inch. If you decide to pick this up, we would love to hear back from you, whether you drop a review on this product page, shoot us an email, or give us a call, we'd love to hear how the lock's working out for you, how you're using it, and send us some photos so we can see your setup as well. Well, 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.

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See what our Experts say about this Trimax Locks Trailer Tongue Lock


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Andy C
Installed by:
Andy C
Employee Matthew B
Installed by:
Matthew B
Employee Sabrina W
Written by:
Sabrina W
Employee Joshua U
Video by:
Joshua U

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