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  1. Trailer Tongue Lock
  2. AMPLock
  3. Fits 2-5/16 Inch Ball
  4. Keyed Unique
  5. Surround Lock
  6. Flat Lip
AMPLock Trailer Coupler Lock for Flat Lip 2-5/16" Ball Couplers - Ductile Cast Iron
AMPLock

AMPLock Trailer Coupler Lock for Flat Lip 2-5/16" Ball Couplers - Ductile Cast Iron

Part Number: AMP44FR
In Stock
$299.00
Retail:$313.95
You Save: $14.95
Trailer Tongue Lock
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Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits standard 2-5/16" ball couplers with flat lips and a finger latch. Resists picking, cutting, and freezing. Tumbler offers nearly 1 million possible key codes. Great Prices for the best trailer tongue lock from AMPLock. AMPLock Trailer Coupler Lock for Flat Lip 2-5/16" Ball Couplers - Ductile Cast Iron part number AMP44FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (62)
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  • Videos (1)
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  • Used (1)

AMPLock Trailer Tongue Lock - AMP44FR

  • Fits 2-5/16 Inch Ball
  • Keyed Unique
  • Surround Lock
  • AMPLock
  • Flat Lip
  • Cast Iron
  • Universal Application Lock

Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits standard 2-5/16" ball couplers with flat lips and a finger latch. Resists picking, cutting, and freezing. Tumbler offers nearly 1 million possible key codes.


Features:

  • Tamper-resistant, sturdy lock deters trailer theft by preventing hookup
    • Fits over coupler, engaging it like a trailer ball does and blocking the ball opening
    • Prevents would-be thieves from hitching your trailer to their tow vehicle
  • Push-and-lock cylinder locks without the need for a key
    • Lock's location on bottom makes it difficult for thieves to access
  • Rotating-disc-tumbler lock provides maximum security
    • Nearly a million possible key codes
    • Resistant to picking and drilling
  • Heavy-duty ductile cast iron construction
    • Absorbs shock to prevent breaking
    • Resists any kind of cutting, including cutting with a torch or liquid nitrogen
  • Molded fit with swivel design decreases hold options for thieves
  • E-coat finish resists corrosion
  • 2 Keys included


Specs:

  • Application: standard ball couplers for 2-5/16" balls with finger latch (as seen below)
    • Coupler must have flat lip
    • Maximum coupler width (including lip): 4-9/16"
    • Maximum lip thickness: 7/16"
  • 5-Year limited warranty


Coupler Fits:

This lock fits 2-5/16" ball couplers with a flat lip and a finger latch, as seen below.


BRHT-2516 coupler applications

Secure Locking Mechanism

This coupler lock has a disc tumbler locking mechanism. Unlike locks that use vulnerable spring-loaded pins, this ultra-secure lock is bump-proof. The cylinder has a series of rotating discs that can be correctly lined up only when you turn the corresponding key. Two identical notched keys are included to operate the lock. Because these keys feature 1 of nearly a million possible key codes, it's extremely unlikely that another individual will have a key that can open this lock.



U-BRHT-2 5/16 AMP Lock Trailer Coupler Lock 2-5/16" Ball Couplers with Straight Lip and Finger Latch - Ductile Cast Iron





Video of AMPLock Trailer Coupler Lock for Flat Lip 2-5/16" Ball Couplers - Ductile Cast Iron

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




Video Transcript for Detailed Breakdown of the AMPLock Trailer Coupler Lock for Flat Lip 2-5/16" Ball Couplers

What's up, everybody, it's AJ, with etrailer.com. Today, we're gonna be checking out this coupler lock from AMPLocks. Now this is going to work with your coupler on your trailer, and what it's gonna do, is you're gonna put the ball in the coupler, and the lock along the lip, and then it should be all locked up and nobody can mess with it, let's check it out. It's a real easy process, first you're going to put the ball up here in the coupler like you normally would. Lock that into place, and you can see it's locked in there, it's not going to go anywhere. And then we add the second part of the lock, which this part here, it's going to fit it right over the flat lip of our coupler.

And you're gonna line up this with the hole on the ball there, just slide it into place, and then lock it up. So now that ball has taken out that empty space here in the coupler, so nobody can get anything up there to wedge it out, and this is covering up the front of it too, so that's just like double protection. so people can't mess with this coupler. It's actually a pretty snug fit on our coupler today, it's moving back and forth but there isn't a lot of space and then there's not a lot of gaps, so let's test that out with a pry bar. Just going to put that into place.

Yeah, it looks like it will fit in there and you can push on it a little bit, but it's not moving anywhere. I'm not pushing that hard, but it's still staying in place pretty good. Looks like it can fit in under here on the side too, now this way, I can't really pry against anything. This way I might be able to just a little bit, but it really does take up a lot of those gaps, I mean, there's not an easy way to get this in there. So if somebody wasn't messing with it, it would take them quite a bit of time to get in there and do anything.

I think they would probably just walk on to the next trailer that doesn't have a lock on it. Another good thing to test is to see, with the latch undone, it's not going to just drop back out, it doesn't drop that ball. This is working in combination with that ball to keep this locked up nice and tight. So even if you don't have a locking pin that goes in there to keep that from moving, you still can't just get it out of that easily. Another thing to note is here at the bottom, the tumbler lock.

And I really liked that because it's going to be resistant to drilling and picking, and it's got like a million different combinations or possibilities for the key. So, chances are no one's going to have the same key and they're not going to mess with it to try and get in there. And it does come with two keys you get, and you see I just turned that and pop that button out, and that means it's disengaged. When you want to go to lock it, you just push it into place and it's locked. It's nice that when you go to set this up, you don't have to have the key in there to lock it. I like that push button 'cause you can just do that, and your keys on the side. The construction is cast iron with an E-coating so you don't have to worry about the elements bothering it at all, so if you leave it out here and it rains, or anything like that, it's not going to rust or corrode on you. The other thing is it's going to be shock absorbent, so if somebody was hit with a hammer, it wouldn't just shatter, it would absorb that shock. Taking a look at the inside of the coupler, this is going to fit trailers of coupler widths of 4-9/16" of an inch, and then a thickness lip of 7/16" of an inch. So just keep that in mind when you're looking at your trailer, this is the one that's going to fit. Overall, I really like this lock. I like that the two-in-one combo is pretty heavy duty too, I like the fact that this covers up the front of the coupler, and this is gonna take up that space on the inside. So like you saw with the pry bar, it's gonna be hard to get those angles and get in there, and like I said before, pretty sure people don't take one look at this and go, "I'm not messing with that," and going to the next trailer. Thanks for hanging out, and I hope this helps..

Customer Satisfaction Score:

Ratings & Reviews

4.9

62 reviews
Use this heavy-duty cast iron coupler lock to help prevent trailer towaway theft. Fits standard 2-5/16" ball couplers with flat lips and a finger latch. Resists picking, cutting, and freezing. Tumbler offers nearly 1 million possible key codes.

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It is massive and will keep your rig sa fe.



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The item fit as described and it got here quick. Thanks



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Very robust and will not be easy to tamper with.



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although the initial purchase is HIGH, IT IS CERTAINLY WELL BUILT TO PROTECT MY $6,000 investment, Great Quality 5 STAR



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This thing is built very strong.



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well made. works very smooth. strong.



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Easy to install. Does the job!



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It's terrific!



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We love it, works great!



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See what our Experts say about this AMPLock Trailer Tongue Lock

  • How to Tell if AMPLock Trailer Coupler Lock Will Fit Trailer Coupler
    Great question! The AMPLock Trailer Coupler Lock # AMP44FR works for couplers that connect to a 2-5/16" hitch ball and the coupler has a flat lip design. This is pretty standard for trailer couplers but I'm also linking a review video of this coupler lock for you to check out. If you take note at the start of the video you'll see the flat lip design I was talking about. If you have the flat lip coupler but you use a 2" hitch ball to tow then you can use the part # AMP64FR instead. This...
    view full answer...

Used Items Available
EtrailerWeb.DataContracts.Swiper.SwiperImageOnlyElement EtrailerWeb.DataContracts.Swiper.SwiperImageOnlyElement

Condition: Surface Scratches

Notes: little scratches

$17.80
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Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Lindsey S
Written by:
Lindsey S
Employee Dustin K
Video Edited:
Dustin K
Employee Aidan B
Video by:
Aidan B

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