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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: $24.57
You Save: 26%
Trailer Coupler Locks
Shipping Weight: 0.52 lbs
In Stock
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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 (88)
  • Q & A (0)
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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   (88 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.
Smithsonite - 05/26/2023


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.
Rob - 03/27/2023


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.

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.
William B - 01/30/2023


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.

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!
-- Etrailer Expert Brooke M - 12/29/2022


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!


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.


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!!!!!!!!!!

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 Expert Jenny N - 08/04/2022


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

It is working good after a year and is keyed like my other locks so is nice not to have extra n keys.
Scott E - 04/26/2023


works great, good price and service.


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


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.


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.


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

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.
-- Etrailer Expert Mike L - 10/10/2022


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!


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


Recognize that most locks only deter the opportunity thief, but feel better knowing the clip attachment that came with our new utility trailer has been replaced by this locking version. Looks solid; fits well & we hope to have years of use instead of our trailer being ripped off in a home improvement store's parking lot as recently happened in our area.


Very nice look keyed like all my other etrailer looks


I was looking for a lock that would fit a specific need and this lock worked. Thank you.

It is working just fine. I use it on a climbing tree stand to lock it on the tree to prevent theft.
roger k - 02/02/2022


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.


Very fast and efficient service. Locks seem solid and good quality, super excited to have them all keyed alike. Happy with purchase so far.


Would prefer a tighter fit on the smallest setting but seems secure. Love the one key feature.

Still happy. As mentioned would prefer one tighter setting but still happy.
John L - 04/30/2022


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.

Show More Reviews

See what our Experts say about this etrailer Trailer Coupler Locks

  • Availability of Coupler Lock with Span Longer than 7/8 of an Inch
    I'd recommend our Coupler lock, part # e98883. When locked, the 1/4 inch diameter pin has an inside span that's adjustable to 1/2, 1, 1-1/2, 2 or 2-1/2 inches, which sounds like it would be prefect for your needs.
    view full answer...
  • Replacement Bracket and Lock for the Fulton Trailer Keeper
    I have a lock that will work for you but the original lock to fit your Fulton Trailer Keeper isn't available anymore. The lug bolt bracket is no longer available. I tested our Adjustable Coupler Lock # e98883 on the Trailer Keeper and it's a little smaller than the original pin however it is definitely a good fit.
    view full answer...
  • Can Adjustable Trailer Coupler Latch Lock # e98883 Be Keyed Alike
    Yes, the Adjustable Trailer Coupler Latch Lock # e98883 that you referenced can be keyed alike. Once on the product page simply select "Keyed Alike" from the drop-down menu and all 4 locks you receive will use the same key.
    view full answer...
  • Best Trailer Coupler Latch Lock With 9/32 Diameter Pin
    There is not a better trailer coupler latch lock with a 9/32" diameter pin than the etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 1/4" Diameter # e98883. This is 1-4" in diameter, which is only slightly smaller than your 9/32" hole (just 1/32" in fact). The # e98883 is made of steel but also has chrome plating on the housing, and its actual lock mechanism is pick proof. At a maximum span of 2-1/2" it does have the length you need as well.
    view full answer...
  • Trailer Coupler Lock For When Trailer is Attached
    There is not a trailer coupler lock with a cover for when the coupler is attached to your trailer; the only option for a lock in that instance is indeed a pin lock. If you are okay going that route, use the Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span # e98883.
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  • Replacement Coupler Pin for Underslung Coupler on a 2022 Jayco Feather Micro
    The 1/4" Diameter etrailer Adjustable Trailer Coupler Latch Lock # e98883 fits standard trailer couplers and will work great for your underslung application.
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  • Latch Lock Pin for 15K Buyers Products Cast Coupler with Auto Latch
    The snap pin that comes with the Buyers Products Cast Coupler # 3370091550 has a 1/4" diameter so to change that to a locking pin I recommend using the etrailer Trailer Coupler Latch Lock # e98883. This will prevent someone from coupling to or removing your trailer from your tow vehicle when it's installed. Attached are some review videos for you to check out.
    view full answer...
  • What Trailer Coupler Locks do You Carry that Can Be Keyed Alike?
    We do carry a wide range of coupler locks depending on what span and diameter you need. For example, the etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 1/4" Diameter # e98883 and the etrailer Trailer Coupler Latch Lock - 1/2" Span - 1/4" Diameter # e98885 can be keyed alike. In order to get your coupler lock keyed alike, you simply go to the product page and select the "Keyed Alike" option from the drop-down menu from the product page with a keyed-alike option....
    view full answer...
  • CURT Adjustable Trailer Coupler Latch Lock Recommendation
    For a pin lock that would fit the pin hole of the Curt Channel Coupler part # C25328 you could use the Adjustable Trailer Coupler Latch Lock part # e98883. Once installed this would prevent the latch from opening.
    view full answer...
  • Which Coupler Lock Can I Use While Trailer Is Still Attached To The Tow Vehicle
    I have a solution for you, the Blaylock Total-Encasement Coupler Lock for 2" Bulldog Collar-Lok Couplers - Push Button # BLTL-22 is designed to put on your trailer while it is not coupled to your tow vehicle. We can however use the trailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 1/4" Diameter # e98883 to secure your trailer while it is coupled to your tow vehicle.
    view full answer...
  • Availability of Keyed Alike Lock for Latch Style Trailer Couplers
    Although Bulldog doesn't offer a keyed alike latch coupler lock, we do offer a similar coupler lock that can be obtained in multiples that are keyed alike. The etrailer brand adjustable coupler lock, part # e98883 is adjustable to fit spans from 1/2 inch to 2-1/2 inches and can easily be keyed alike in any multiple you'd like. Just choose the 'keyed alike' option from the drop down menu on the product page. I've linked to a product demonstration video for the adjustable span coupler lock...
    view full answer...
    Image 1 for
  • Replacement Keys for Adjustable Trailer Coupler Latch Lock
    Unfortunately, Bulldog doesn't offer replacement keys, but we can set you up with locks and spare keys. Your best bet for replacement keys, or if you want a lock that you can have multiple keys for would be to go with the etrailer Adjustable Trailer Coupler Latch Lock, part # e98883. You can even get multiple locks keyed alike if you wish by using the drop down menu on the linked product page and choosing the 'keyed alike' option.
    view full answer...
  • Recommended Lock for Safety Pin Hole on Curt Channel-Mount Coupler
    The Curt Channel-Mount Coupler # C25328 has a 5/16" diameter pin hole. You can use a lock like the etrailer Adjustable Trailer Coupler Latch Lock # e98883. This has a 1/4" diameter with a 2-1/2" span and 5 locking positions. It also has a steel construction with the plastic cap for the key slot to prevent corrosion.
    view full answer...
  • How Does the Curt Clamp-On 3 Bike Rack Help Deter Theft of the Bike Rack
    As-is, there is minimal theft deterrent with the Curt Clamp-On 3 Bike Rack # C18013; Other than inconvenience. The rack can be a little cumbersome to break down as there are a couple steps needed and those steps are made more difficult with bikes loaded because you have to use the handle and knob on the crossbar to get the rack to start collapsing again to remove it from the draw bar. With your bikes loaded that will be difficult, but not impossible. Especially if they remove the bikes...
    view full answer...
    Image 1 for
  • Trailer Coupler Recommendation for a Trailer with 2 Inch Wide Tongue
    I recommend the etrailer Channel Tongue Trailer Coupler, part # CT-3001-Z, for your trailer with the 2 inch channel. This zinc-plated steel coupler can be either bolted or welded on. This coupler fits 2 inch trailer balls, and features a quick-release lever-style latch that makes hookup and disconnect easy. I recommend using a pin lock like # e98883 to secure your trailer.
    view full answer...
  • How to Get Multiple Keyed Alike Trailer Hitch And Coupler Locks
    We have an option for you, though there isn't a way to get matching keys for a Master Lock # 2848DAT trailer hitch and coupler lock set as they don't have a Keyed Alike option for a second set. What you can do in order to use the same key for multiple trailer hitch locks and coupler locks is use the etrailer locks, and select the "Keyed Alike" option from the drop-down on their product pages. This will get you all the locks keyed the same so you only have to keep track of a single key....
    view full answer...
  • Are Locks Included Wtih Curt Trailer Hitch Receiver and Coupler Lock Set C23086 Keyed Alike
    Within each set, the 3 different locks would be keyed alike. If you needed similar locks that are keyed differently, we offer some branded locks that would work great for you. etrailer Trailer Flat Lip Trailer Coupler Lock for 1-7/8 or 2 inch balls # e98897 etrailer Adjustable Trailer Coupler Latch Lock # e98883 etrailer Trailer Hitch Receiver Lock # e98880
    view full answer...
  • Availability of etrailer e68ZRCoupler Lock Kit With Yellow Slip-On Coupler Lock
    The etrailer # e68ZR is only available with the coupler lock in the silver finish, but you can get the locks separately as # e98895, # e98880 and # e98883 and choose the 'keyed alike' option. This would provide you with the same kit, but with a yellow slip-on coupler lock.
    view full answer...
  • Is there a Locking Pin that Fits In Place if a 9/16 Inch Pull Pin on a Trailer Jack
    There isn't a 9/16 inch diameter pin that locks but what you could do is use # BD500338 and instead of using its little keeper pin use a lock through the hole such as # e98883.
    view full answer...
  • Recommended Hitch Lock For Roadmaster Falcon 2 Tow Bar # RM-520
    I have another option for you, but the etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 1/4" Diameter # e98883 you were looking at is for the coupler of a trailer and will not work with the Roadmaster Falcon 2 Tow Bar # RM-520 you mentioned. Instead I recommend the Roadmaster Lock Set - Hitch Lock and 2 Quick-Disconnect Padlocks # RM-304 which will work perfectly with the # RM-520 and the 2" receiver on your 2019 Freedom Elite. This kit also includes two pad locks...
    view full answer...
  • 1/4" Diameter Locking Pins Which Can Be Keyed Alike
    Here is a list of different length 1/4" pin locks we offer which can be keyed alike. 1/2" Long Pin Lock # e98885 7/8" Long Pin Lock # e98890 2" Long Pin Lock # e98886 2-1/2" Long Pin Lock # e98887 3-3/8" Long Pin Lock # e98888 We also have the Adjustable 1/4" Lock # e98883 which can fit from 1/2" to 2-1/2" spans you can get keyed alike as well.
    view full answer...
  • Coupler Lock Recommendations for etrailer Adjustable Channel Mount Coupler # CTA-280
    You have some options to use a lock on coupler # CTA-280. First, you could use a latch lock, # e98883. Its diameter is slightly less (1/4 inches) than the pin hole diameter for the latch (5/16 inches). Another option is # ML389DAT which works with many styles of couplers and would be a great option for your coupler. I have linked videos of both locks for you.
    view full answer...
  • Locks and Channel Recommendation for Demco Trailer Coupler # DM15791-52
    The Demco Trailer Coupler # DM15791-52 does not come with the locking pins or the mounting pins. The mounting pins will need to be supplied by you. Grade 5 mounting bolts must be used to achieve the 21,000-lb weight capacity and we do not carry them. For the body of the coupler the lock you'd need is # e98888 and for the pin you'd want # e98883. If you select keyed alike on the drop down menu you'll be able to order them both with the same key number. For a channel to use with this you'd...
    view full answer...
  • Availability of Keyed Alike Lock Set for 2-1/2" Hitch and Coupler With 2-5/16" Ball
    Although it is not sold as a set like the # e68ZR, we do have these locks available with a keyed alike option. You will need the etrailer Adjustable Trailer Coupler Latch Lock # e98883 and the etrailer Hitch Receiver Lock for 2" and 2-1/2" Hitches # e98881. For the coupler lock you want the # e87ZR for a rolled lip or # e98894 for a flat lip. Right above the add to cart button you will see a box that says Keyed Alike? Choose the Keyed Alike option from the drop down menu and all three...
    view full answer...

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