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  1. Trailer Coupler Locks
  2. Blaylock Industries
  3. Fits 2-5/16 Inch Ball
  4. Surround Lock
  5. Keyed Alike
  6. Aluminum
Blaylock EZ Lock Trailer Coupler Lock for 2-5/16" Lipped Couplers - Aluminum - Push Button

Blaylock EZ Lock Trailer Coupler Lock for 2-5/16" Lipped Couplers - Aluminum - Push Button

Our Price: $53.17
You Save: 25%
Trailer Coupler Locks
Shipping Weight: 1.95 lbs
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Sturdy, rustproof lock discourages towaway trailer theft by covering coupler ball opening and fully surrounding the lip. Fits 2-5/16" ball couplers with flat or rolled lips. Can be keyed alike to match other Blaylock push-button locks. Great Prices for the best trailer coupler locks from Blaylock Industries. Blaylock EZ Lock Trailer Coupler Lock for 2-5/16" Lipped Couplers - Aluminum - Push Button part number BLTL-34 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (792)
  • Q & A (0)
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Blaylock Industries Trailer Coupler Locks

  • Fits 2-5/16 Inch Ball
  • Surround Lock
  • Keyed Alike
  • Aluminum
  • Blaylock Industries
  • Universal Application Lock

Sturdy, rustproof lock discourages towaway trailer theft by covering coupler ball opening and fully surrounding the lip. Fits 2-5/16" ball couplers with flat or rolled lips. Can be keyed alike to match other Blaylock push-button locks.


  • Coupler lock deters theft of your trailer with a ball coupler that has a flat or rolled lip
  • Unit fits over coupler's lip, fully surrounding it to block access to hitch ball opening
  • Steel pin slides up into hitch ball opening to prevent removal of lock
  • Push-button lock secures unit to trailer coupler
    • Located on front of unit for easy access
    • Recessed tumbler adds extra security measure
  • Aircraft-grade, lightweight aluminum construction is strong and resists wear and corrosion
  • 2 Keys are included
  • Lock can be keyed alike to match other Blaylock push-button locks
    • To order keyed alike locks, select "Keyed Alike" from drop-down menu above and enter the number of locks in Quantity box
  • Made in the USA


  • Application: 2-5/16" ball coupler with a flat or rolled lip
    • Maximum coupler width (including lip): 4-1/2"
  • Pin diameter: 5/8"
  • Weight: 2 lbs

Blaylock Push Button Lock Compatibility


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

After it has been secured in place, this Blaylock EZ Lock renders your trailer's coupler inoperable, giving you peace of mind. Simply slide the lock around the lip of your coupler, push the 5/8" diameter pin into the coupler's hitch ball recess, and push in the lock mechanism. The unit fully surrounds your coupler to prevent access to the hitch ball recess. The sturdy steel pin extends to the top of the recess, and the pin cannot be accessed while the unit is locked.

TL34 Lip-Engaging 2 5/16" Coupler Lock by Blaylock Industries

Item # BLTL-34

Customer Satisfaction Score:

Customer Reviews

Blaylock EZ Lock Trailer Coupler Lock for 2-5/16" Lipped Couplers - Aluminum - Push Button - BLTL-34

Average Customer Rating:  4.7 out of 5 stars   (792 Customer Reviews)

Sturdy, rustproof lock discourages towaway trailer theft by covering coupler ball opening and fully surrounding the lip. Fits 2-5/16" ball couplers with flat or rolled lips. Can be keyed alike to match other Blaylock push-button locks.


Fit was a little tight but the trailer lip is pretty beat up so can't blame the lock. I was able to get it on with a little muscle and it locked right up. Going to buy another for my project manager's trailer too!


Super fast shipping and it works great.



Still working great. Good investment


It fits perfectly but the lower latch disconnected so it falls off when I unlock. That part should be better designed.


Works great! I did need to file the inside just a tiny bit at the top to get it to slide on enough but not a big deal. Very happy! The lip on the tongue flared out just a little as it went back toward the camper.



Works very well. Truth is if someone wants your trailer bad enough they can get it but this is a reasonable deterrent.


I like the design of using the flange to secure the lock to my TT. I store my AIRSTREAM at a storage facility near my house and the gates aren't always working (usually open). The ball lock I was using was less than Ideal. Love the ease of use, close fit on the flange, security and over all piece of mind this lock gives me.


Works great! Thanks for the great servi ce!


a deterrent, maybe a thief will move on to a trailer/camper without a lock.
Having said all that, I do like this lock a lot better than others I've had. It's lightweight and easy to use. We'll see how it holds up.

Albert G.


After a year it still looks new and still working great.


I am quite satisfied with the Blaylock coupler lock. It is well made (I appreciate it having been made in the USA). I have both lipped and flat flange couplers on two different trailers, and I only need to lock one at any given time, so I got the one that fits lipped couplers and it will work on either one; if I wanted to be elegant, I would make a shim for use with the flat-lipped hitch just to take some vertical clearance out of it, but that would be merely putting booties on the cat -- it achieves its purpose as it is, and gives me versatility. I like the axial tolerance built into the locking pin because I'm confident it will not hang up, rust, or stick with age and dirt accumulation.



I remain quite satisfied after a year. I would buy another one if I had a use for two.


I've been needing a new lock for my work trailer especially when the old one finally failed.
I am a big user of the Blaylock locks for my trailer doors for the past 3 years. They work wonderful even in the Michigan winters.
When I saw that the other locks of their lines could be keyed alike I jumped on getting more info.
Once I talked to the company they did say the BLTL-34 can be keyed the same to my other locks.
I called up etrailer and spoke to Leeza who checked for me and said yes it can.
My new lock arrived in a few days and out of the box the lock worked perfectly with my original old keys (the new keys worked too).
Now I carry one less key and have two additional spares.
The price was right and the service was wonderful!.


Dave M.


Still working good with no issues.


Used on my Wells Cargo 16' enclosed trailer. I touched mine up slightly with a grinder because it was a tight fit and it's on perfectly now without being too tight. Good solid construction.



I ground mine just a hair and it works great.


Coupler lock is not universal in regard to a snug fit. My 2 5/16" hitch is evidently deeper than most because the fit is extremely sloppy. I think the lock is ingenious compared to other styles; however, be aware that to secure the lock as intended by design you may need to add spacers above the lock pin. If the lock remains as a sloppy fit it will be easy to pry off with a crow bar.


Great product. Well built. Corrosion resistant. Fits well. Does the job! Additional layer of protection and a great price.


This product is poor, it does not fit on my 2 5/16" tongue without a ton of slop back and forth and side to side. I verified every tongue this fits before purchasing as well. And the worst part is upon trying to return it, realizing i have to pay return shipping for a sloppy product. If these guys are going to compete in online shopping, they need to sort out free returns with couriers and absorb that cost. You will never compete with other major online retailers.

Etrailer Expert

Jenny N.


I will have our customer service team reach out to you. This lock is intended for couplers that have a flat or rolled lip. I have an alternate lock to offer that will work for other 2 and five sixteenth couplers. It is part # BLTL-33-40D.


I wanted a hitch lock different than that one I had, Horizontal key instead of Vertical. Blaylock had that. Unfortunately the one that I received had a defective lock. I called etrailer and the next thing you know I had a prepaid shipping label to return the defective lock and a few days another lock arrived and it works just fine. Etrailer is a great company to deal with, outstanding customer service.


I love this lock. An Airstreamer friend of mine purchased one and when I saw it I knew I had to have one. It gives me peace of mind knowing my Airstream is secure....and it doesn't "stick out". Looks like it belongs on the hitch. I'm positive would be theives would see it and just keep moving. Thanks for a great product.


This seems to be a great deterrent for anyone thinking about stealing my trailer. If they had the right tools, I’m guessing this could be defeated, however I haven’t seen any hitch lock that is totally undefeatable. For the price it will serve it purpose and hopefully make any thief think of moving on to an easier steal.


Customer Service was excellent. When my lock was going to be delayed I got both a phone call and email from the company. I have been looking for a simple but heavy duty lock for my new Salem Travel Trailer. The lip is 4" across so the basic locks were too small. This lock is heavy duty and simple to use. I feel confident that my trailer is safe with this lock!!


This has to be the worst locking mechanism made. Maybe I’m not doing something right but the lock has a pin that goes into the coupler to secured it from removal. The problem is the pin is only about 1/2 inch in diameter. The coupler fits a 2 5/16 ball so as you can imagine there is a lot of play so much so the lock when engaged pretty much falls off by itself. This is why I though I was going something wrong no one would design a lock this faulty. Well I’ll be returning to get a functioning lock.


Received the trailer tongue lock quickly and placed it right away. The BLTL-34 fit perfectly and installed in seconds. The construction of the lock appears very strong and I prefer the lock arraignment on this unit vs others that you can't see. Overall I'm happy with the product, communication from eTrailer, and fast shipment.


etrailer is fantastic!!! They Keyed all my trailer locks the same and ship promptly. I always order my locks and hitches from them because of the great customer service and thorough results.


This coupler lock fit exactly as they said it would. Purchase was easy and delivery was on time, I will definitely do business with them again.


Works well...In conjunction to chaining both our wheels together we use these with some peace of mind to slow thieves from hitching and go...


This is a nice lock for the price. I think there is a possibility that I could take a hammer and demolish it. It might just keep honest people honest. If you are really worried about getting your trailer stolen I would go ahead and get one of the locks in the $250 range.


Slid right on, excellent fit! Preventing theft


A little difficult initially to fit on the hitch but now works OK. Light weight and easy to use. Probably wouldn't stand up to a sledge hammer but a good deterrent

Show More Reviews

See what our Experts say about this Blaylock Industries Trailer Coupler Locks

  • How Tall Of A Rolled Lip Fits Blaylock EZ Lock Trailer Coupler Lock # BLTL-34 For 2-5/16" Couplers
    The Blaylock EZ Lock Trailer Coupler Lock # BLTL-34 will fit on a 2-5/16" coupler with a maximum lip height of 1-1/16" and width of 4-1/2".
    view full answer...
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  • Are Replacement Keys Available for the Blaylock EZ Lock Trailer Coupler Lock
    Additional keys by themselves are not available for the Blaylock EZ Lock Trailer Coupler Lock # BLTL-34. It is possible to order more than one of these locks keyed the same by choosing the keyed alike option from the drop down menu. But as far as keys we do not have replacements or specific key numbers available for this manufacturer. You could order multiple replacement lock cores and keys but then you would be left with a bunch of lock cores you wouldn't need.
    view full answer...
  • Will BlayLock Coupler Lock # BLTL-34 Fit 2008 Jayco 30 BHS Travel Trailer
    I'm not able to look up what style of coupler your 2008 Jayco 30 BHS has so to determine if the BlayLock Coupler lock part # BLTL-34 will fit will require you to verify that the coupler has a flat or rolled lip around the coupler that is not wider than 4-1/2 inches.
    view full answer...
  • Blaylock EZ Lock Coupler Lock Recommendation for a 2009 Airstream International
    The Blaylock EZ Lock Trailer Coupler Lock # BLTL-34 is what I would recommend. For a couple reasons, it is larger and has less areas that could be pried on by a thief to get it off than most locks. I attached a review video for you to check out as well. As long as the rolled lip on the coupler isn't wider than 4-1/2 inches either coupler lock would work well for you.
    view full answer...
  • Is the Blaylock EZ Lock Trailer Coupler Lock Available for 2" and 1-7/8" Trailer Couplers
    Yes, we do have the Blaylock EZ Lock Trailer Coupler Lock part # BLTL-34, for a 2-5/16" coupler, in a size that is compatible with both 2" and 1-7/8" trailer couplers. This is found on our site as part # BLTL-38 and comes with 2 keys. You can order these keyed alike by changing the "Keyed Alike?" drop down menu and then entering the desired amount in the quantity box. A review video has also been linked for you to check out.
    view full answer...
  • Are Gorilla Guard Coupler Lock Replacement Keys Available
    Gorilla Guard does not offer replacement keys for their Trailer Coupler Locks like part # 63228 unfortunately. The only option is to replace the whole coupler lock. You may consider the Blaylock EZ Lock Coupler Lock for 1-7/8" and 2" Lipped Couplers part # BLTL-38 because they offer replacement keys and keyed alike options. They also use the barrel keys which are more secure compared to the standard keys. If you have a 2-5/16" coupler you'll need part # BLTL-34.
    view full answer...
  • Replacement for Atwood AMPlock Trailer Coupler Lock Part AT89004
    The Atwood AMPlock Trailer Coupler Lock part AT89004 which is for overslung couplers (coupler on top of frame) has been discontinued by the manufacturer as with a lot of Atwood products as they are no longer in business. The Atwood AMPlock Underslung Coupler Lock part # AT89006 which is for underslung couplers (coupler on bottom of frame) is only available while supplies lasts and has also been discontinued by the manufacturer. That said, you do not need to use an Atwood coupler lock if...
    view full answer...
  • Coupler Lock Recommendation for a Coupler Similar to the # PSE338050303
    For your style of coupler, one that is similar to the # PSE338050303, I would recommend the Blaylock EZ Lock Trailer Coupler Lock # BLTL-34. This will fit around the lip and work well as a theft deterrent. Check out the review video I attached for this lock.
    view full answer...
  • Alternative to Blaylock Total-Encasement Coupler Lock that Fits Standard Lipped Couplers
    Thank you for sending the photo! While I have a solution for you, the Blaylock Total-Encasement Coupler Lock, part # BLTL-23 will not work. I is designed to fit Bulldog Collar-Lok style couplers that use a 2-5/16" ball, like # BD028463 for example. For a lipped coupler, like yours, Blaylock does offer the EZ Lock Trailer Coupler Lock for 2-5/16" Lipped Couplers - Aluminum - Push Button # BLTL-34. Or, if you prefer something that provides a more complete enclosure for your coupler, I recommend...
    view full answer...
    Image 1 for
  • Will The Blaylock BLTL-34 Fit A Demco Coupler?
    I am not sure exactly what Demco coupler you are referring to. The Blaylock # BLTL-34 will work with most 2-5/16" ball couplers with a flat or rolled lip, less than 4-1/2" wide. A good example of a compatible Demco coupler is the Demco 50-Degree A-Frame Trailer Coupler # DM16680-52.
    view full answer...
  • Coupler Lock For Coupler That Is 5 Inches Wide
    Unfortunately, none of our wraparound coupler locks, including the Fastway Universal Trailer Coupler # FA86-0015-316 you mention will fit a 5" wide coupler. The best we offer for an extra wide lip is the Blaylock EZ Lock Trailer Coupler Lock for 2-5/16" Lipped Couplers # BLTL-34 since it does not wraparound the coupler, and will fit up to a 2-5/16' ball.
    view full answer...
  • Can Steal Shield be Used in Conjunction with Blaylock EZ Lock Coupler Lock
    I spoke with my contact at Steal Shield and he said their coupler lock was not designed to be used in conjunction with another manufacturer's anti-theft device though he has heard of people using a padlock with the Steal Shield. If you decide to do this I recommend our Coupler Lock part # e98888, which inserted through the trigger lock would provide extra security for your trailer. Without knowing the size of the ball of your coupler or your coupler profile I cannot give a...
    view full answer...
  • Recommended Bolt On A-Frame Trailer Coupler For A Jayco Pop-Up Camper
    The Demco A-Frame Trailer Coupler w/ Jack Hole # DM14793-81 you were looking at features an "eZ-Latch mechanism" which will make coupling super easy. When you drop the trailer down onto the ball it will automatically latch and unlatching is as simple as pulling the latch up. It has a black powder coat finish that resists corrosion and bolts onto the frame of your Jayco pop-up camper so you can complete the installation yourself. You can use a torque wrench like # ALL944001 to ensure a tight...
    view full answer...

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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee David L
Written by:
David L
Employee Mike S
Updated by:
Mike S
Employee Noah M
Updated by:
Noah M

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