1. Trailer Coupler Locks
  2. etrailer
  3. Latch Lock
  4. Keyed Unique
  5. Universal Application Lock
  6. 1/2 Inch Span
  7. 1 Inch Span
  8. 1-1/2 Inch Span
  9. 2 Inch Span
  10. 2-1/2 Inch Span
etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 9/32" Diameter

etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 9/32" Diameter

Item # e98883
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Our Price: $15.92
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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. Lowest Prices for the best trailer coupler locks from etrailer. etrailer Adjustable Trailer Coupler Latch Lock - 1/2" to 2-1/2" Span - 9/32" Diameter part number e98883 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (34)
  • Q & A (12)
  • Photos
  • Why etrailer?

etrailer Trailer Coupler Locks - e98883

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

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: 9/32"
  • 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 9/32" 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 - 9/32" Diameter - e98883

Average Customer Rating:  4.5 out of 5 stars   (34 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.

- e98883

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.

- e98883

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.

- e98883

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

- e98883

Bought the adjustable coupler lock. Fits great and smooth operation.

- e98883

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

- e98883

Excellent product

- e98883

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

- e98883

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!

- e98883

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!

- e98883

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

- e98883

Received this lock along with a trailer hitch lock. Works on my trailer. Arrived as expected and would order again.

- e98883

Working ok for now.

- e98883

Great product and fast delivery

- e98883

Great to have a piece of mind when away from my cargo trailer.

- e98883

Customer service is top notch. Shipping was fast. Product is as described. No hesitation at all to order from again. Great people to work with. Even called me to let me know my order was on the way

- e98883

Product just as described and fits perfectly, easy to use lock assembly and weather resistant cap. Very pleased with product and shipping speed

- e98883

A solid lock and several adjustable sizes. Seems well made with smooth mechanics.

- e98883

I ended up switching to a set of BOLT products instead. So it could be keyed to my ignition key.

- e98883

Great lock,works great for locking down my clamshell trailer top. Very happy with this purchase

- e98883

Great company to work with and we are loving the matched keys.

- e98883

Would love it if you could send a second set of keys

- e98883

Very good quality.

- e98883

Received the lock, looks and works as expected, no problems so far.

- e98883

Unable to insert key after a few used, two weeks.

- e98883

Show More Reviews

Ask the Experts about this etrailer Trailer Coupler Locks

  • 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 etrailer.com 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 etrailer.com Adjustable Trailer Coupler Latch Lock # e98883 Be Keyed Alike
    Yes, the etrailer.com 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 etrailer.com Coupler lock, part # e98883. When locked, the 9/32 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...
  • 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...
  • 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...
  • 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 etrailer.com 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...
  • 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. Once you receive the lock or locks, get the number off...
    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 - 9/32" 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 (9/32 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...
  • 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...
  • 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...
  • 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...
    view full answer...

Do you have a question about this Trailer Coupler Lock?

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Info for this part was:

Employee Andrew K
Video by:
Andrew K
Employee Tyler C
Edited by:
Tyler C
Employee Jeff D
Installed by:
Jeff D
Employee Colin H
Installed by:
Colin H
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Updated by:
Wilson B
Employee Matthew S
Updated by:
Matthew S
Employee Kristina F
Updated by:
Kristina F
Employee Mike S
Updated by:
Mike S
Employee Noah M
Updated by:
Noah M
Employee Erin H
Written by:
Erin H

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