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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
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Trailer Coupler Locks
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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. Lowest 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 1-833-496-1390 for expert service.
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  • Reviews (66)
  • Q & A (0)
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etrailer Trailer Coupler Locks - e98883

  • Latch Lock
  • Keyed Unique
  • etrailer
  • 1/2 Inch Span
  • 1 Inch Span
  • 1-1/2 Inch Span
  • 2 Inch Span
  • 2-1/2 Inch Span
  • 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
  • Lock can be keyed alike to match other etrailer locks
    • To order keyed alike, select "Keyed Alike" from drop-down menu above and enter number of locks in Quantity box
  • 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 Reviews

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

Average Customer Rating:  4.6 out of 5 stars   (66 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:


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


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.


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


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!


Very nice look keyed like all my other etrailer looks


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.


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.


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


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.


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


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


this lock works as it should by having the adjustments needed


The customer service has been exceptional. The items I have ordered over the years have been very high quality. I also had to send back an item that would not work for my vehicle and etrailer customer service was extremally helpful with my return as well


Did a great job filling my order.


Very happy with the quality and fair price on your products.
The selection is second to none and customer service is above expectations.


I have purchased a number of items from etrailer and have never been disappointed. Always good service


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.


It's what was expected. And it made in the USA.


So far so good! Works like it's supposed to, sturdy and easy to use.


simple design, should work great with my trailer coupler


Great product at a great price with quick service!


The locks are grate well build. The service it’s excellent. Fast shipping. Definitely will recommend this company for any towing needs.


No rusting after one year. Easy to operate. Keeps honest people honest.

Show More Reviews

See what our Experts say about this etrailer Trailer Coupler Locks

  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
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  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • Can Primed Demco A-Frame Trailer Coupler be Painted
    Yes, the primed finish means you can paint over the red Demco A-Frame Trailer Coupler with Jack Hole # DM14793-97. This coupler, as well as the black # DM14793-81 are A-frame couplers with a 10,000 lb capacity and attach to a 2" hitch ball. If you need a lock as well the best option is the etrailer Adjustable Trailer Coupler Latch Lock # e98883. I've added links to video reviews for you to check out as well.
    view full answer...
  • Recommended Coupler Lock for Curt Channel-Mount Coupler
    Based on the lip on the Curt Channel-Mount Coupler - Squeeze Latch - 2-5/16" Ball - 15,000 lbs # C25328 you will be unable to use the # e98895. The # e87ZR might fit, but I would question how secure it is once again based on the lip on that coupler. Instead, I would recommend the Fastway Universal Trailer Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers # DT25013KA. This is a universal lock that will secure over the top of the coupler and uses a bolt-blocked locking system to prevent...
    view full answer...

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