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  1. Trailer Coupler Locks
  2. etrailer
  3. Latch Lock
  4. Keyed Unique
  5. 1/2 Inch Span
  6. 1 Inch Span
  7. 1-1/2 Inch Span
  8. 2 Inch Span
  9. 2-1/2 Inch Span
etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 1/4" Diameter

etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 1/4" Diameter

Item # e98883
Our Price: $23.74
You Save: 31%
Trailer Coupler Locks
Shipping Weight: 0.52 lbs
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Swivel-head, side-entry lock has 5 locking positions, giving you a perfectly sized span to fit almost any coupler, including sleeve-lock couplers. Covered keyhole and chrome plating resist corrosion. Can be keyed alike to match other etrailer locks. Great Prices for the best trailer coupler locks from etrailer. etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 1/4" Diameter part number e98883 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (94)
  • Q & A (0)
  • Photos

etrailer Trailer Coupler Locks - e98883

  • Latch Lock
  • Keyed Unique
  • 1/2 Inch Span
  • 1 Inch Span
  • 1-1/2 Inch Span
  • 2 Inch Span
  • 2-1/2 Inch Span
  • etrailer
  • Universal Application Lock

Swivel-head, side-entry lock has 5 locking positions, giving you a perfectly sized span to fit almost any coupler, including sleeve-lock couplers. Covered keyhole and chrome plating resist corrosion. Can be keyed alike to match other etrailer locks.


  • 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 with the coupler locked either
  • Swivel-head, side-entry lock housing makes locking and unlocking easy
  • Adjustable span offers 5 different lengths to fit most couplers
    • Great for sleeve-lock-style couplers, like Bulldog Collar-Lok, Demco Slide-Lok, and other couplers with pin-style fasteners
  • Tamper-resistant design
    • Conical shaped housing ensures tight fit against coupler latch
    • Pick-proof screw-and-lock mechanism provides security
  • Sturdy steel construction
  • Double chrome plating on lock housing offers maximum rust resistance
  • Rubber casing on lock core makes it easy to grip
  • Plastic cap covers key slot to help prevent internal corrosion
  • 2 Reversible, automotive-style keys included
  • Made in the USA


  • Application: trigger-latch-style (or lever-latch-style) and sleeve-lock ball couplers
  • Inside pin length (span): 1/2", 1", 1-1/2", 2", or 2-1/2"
  • Overall length: 4-5/8"
  • Pin diameter: 1/4"
  • 1-Year warranty

etrailer Lock Compatibility


  • Lock can be keyed alike to match other etrailer locks.
  • To order keyed alike locks, select "Keyed Alike" from drop-down menu above and enter number of locks in Quantity box.

e98883 etrailer Adjustable Trailer Coupler Latch Lock with 1/4" Diameter Pin

Alternate part number: RC1

California residents: click here

Customer Satisfaction Score:

Customer Reviews

etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 1/4" Diameter - e98883

Average Customer Rating:  4.5 out of 5 stars   (94 Customer Reviews)

Swivel-head, side-entry lock has 5 locking positions, giving you a perfectly sized span to fit almost any coupler, including sleeve-lock couplers. Covered keyhole and chrome plating resist corrosion. Can be keyed alike to match other etrailer locks.


Bought 2 of these for my 2 trailers. One trailer has a 2" span, and the other a 3/4" span. I towed with this in place on my flatbed (the 3/4" span) hauling a Euro station wagon the other day. When I got back, I noticed the thing was bent. At least it didn't break, so it's got some flex to it. Guess I need to leave some wiggle room, and not slide the lock as tightly as possible. Not a huge deal - it's still useable, just slightly curved now. More noticeable in person than in the pic:



Still working, although being out in the elements made the lock very difficult to work. Ive been loading it up with either white lithium grease or silicone spray to keep things moving. Thats been working out. This is definitely not going to stop a thief, but itll slow them down, especially if you have other anti-theft devices on the trailer. Since I havent been sliding the lock on as tightly as I did the first time I used it, no more issues with bending the pin. That rubber seal doesnt do much, so keep it greased and it should last, especially if it sees road salt - in that case youll want to lube it often.


Seems to be well-made, and fits a variety of couplers as advertised. I like it so well I bought two more.



All three still working well. No rust or corrosion from being outside.


I bought this as a multi package with receiver locks all keyed alike. Glory be I don't have to fumble through countless keys trying to find the right one anymore! I used to avoid using locks if it was a short trip or just around the property, now it's always locked.


I needed the keyed alike. Customer service was outstanding!


Great product. I have had this lock for some time and lost the pin. It was keyed the same same as all my locks from Etailer and the awsum folks at Etailer were able make sure this replacement had matching keys as well. One key for 4 different locks on my trailers , yes makes life easier.

William B.


This is a great lock. I have had a couple of them for over a year now and they are still functioning and looking perfect. I use a little lock lube once a month and they work as well as day one. And being able to key different locks to the same key is extremely handy.


Looks a good quality trailer coupler pin lock. I also purchased hitch balls with these locks and cut the shank off to build my own trailer coupler lock for cheaper than a purpose built coupler lock. The modified hitch balls plus this coupler pin lock makes my trailers secure in my yard as well as anywhere we go. Trailers can't be easily towed away if there is already a hitch ball locked in the coupler. And by buying enough keyed-alike coupler pin locks, one key fits all trailers unlike previous setups I tried where each coupler lock had its own key.


Received a reordered lock as the first one was supposed to be keyed-alike. Second one was net keyed alike either. Both times I chatted with etrailer customer service and both times was told no problem. Not sure how to get a lock that is actually keyed-alike to the locks I previously purchased.

Etrailer Expert

Brooke M.


I will have our customer service team reach back out to you about this. We defintely want to get you squared away. Thanks for letting us know!


Have not used it yet. Appears well designed and machining it top quality. Hope it resists a grinder better than it’s predecessor. Only took less than 1 minute to cut off.





Product was delivered on time. It was the product I ordered and it functioned properly. The problem I have with this product is that it was to replace an identical lock. I opened the package and installed the lock onto the trailer coupler. To my surprise, my old key unlocked the new coupler latch lock. It is a bit concerning that there are so few keys combinations that I just happened to get a lock that I already had a key to. If I can have a key by luck, the pro thief likely has it as well so he or she can easily steal my trailer. I ask, what is the point in using a lock that has only a handful of different keys? No Bueno!!!!!!!!!!

Etrailer Expert

Jenny N.


You mentioned that the old key that you had was able to be used on the new lock. I reached to our product design team and have found the locks do have approximately 50 key combinations. It was a coincidence that you happened to receive a lock that worked with the old key. We do have locks available that can be keyed to your vehicle, depending on what you have.


etrailer provides a great product at a fair price. They also have a great selection of products and those products are all high quality products!


Excellent replacement for my previous Latch Lock. The ability to have keyed alike is wonderful.


Still working great after several months. no rust, key inserts and this has been used for a winter as well so it is has seen a lot. Even the rubber cover is still intact


this lock works as it should by having the adjustments needed

Scott E.


It is working good after a year and is keyed like my other locks so is nice not to have extra n keys.


works great, good price and service.


Quick & easy ordering. Quick order processing and shipping as well, especially considering it was the week before Christmas. The products ordered were exactly as depicted and very good quality.


product works as promised but was the second one sent. first one was not in same packaging as second one which the key didn’t work but company was quick to rectify and send a new one thank you for being professional


One year in these are holding up great. I leave them outside on each of my trailers and both still operate smoothly.


looks flimsy, easily broken off with a hammer.


Great being able to have se key for multiple coupler locks and locking hitch pins


A good lock design, not enough adjustments for width. In my application, Sleeve Lock A-Frame Trailer Coupler # CA-5196H-B, it fit too loose and would have left the weak shaft exposed and easily cut by a thief. I chamfered the holes on both sides of the sleeve lock coupler to allow it to fully close.


This product is flimsy and cheaply made and would not slow a thief down very much. I wish you sold something much more substantial.

Etrailer Expert

Mike L.


There are other, more secure options available, but unfortunately locks are only for keeping honest folks honest. A determined thief can defeat any lock, but the idea is to provide some deterrence that will encourage the thief to move on to an easier target.


I haven't had a chance to use the pin yet, but it looks like it's very well built. The adjustment is easy for the different width hitches, very happy so far! What I want to comment on the most is the great customer service that etrailer has provided. All my transactions have so good, even when I ordered the wrong part there was no issues canceling my order and helping order the correct one! Very pleased with etrailer on all my purchases!


It was great to be able to easily find and order a replacement part for my trailer lock. I was worried I'd need to replace the entire device, but etrailer already had me covered. Reasonable price and quick service- couldn't be happier!


These are great little locking devices to add extra security to your trailer. I will likely buy more soon! Thank you! If you ever get ones with combination locks that would be great as my key ring is full of keys!


Ordered trailer tongue lock, shipment was fast and product met all of my needs. Recommend anyone needing trailer parts or accessories to use etrailer..Mark B.Zephyrhills, FL

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