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Blaylock Total-Encasement Coupler Lock for 2" Bulldog Collar-Lok Couplers - Push Button

Blaylock Total-Encasement Coupler Lock for 2" Bulldog Collar-Lok Couplers - Push Button

Item # BLTL-22

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Trailer Coupler Locks

Shipping Weight: 2 lbs

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Blaylock Total-Encasement Coupler Lock for 2" Bulldog Collar-Lok Couplers - Push Button Fits 2 Inch Ball BLTL-22
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  • Surround Lock
  • Fits 2 Inch Ball
  • Blaylock Industries
  • Keyed Unique
  • Universal Application Lock
  • Aluminum
Can be keyed alike with other Blaylock push-button locks. Sturdy, rustproof aluminum lock discourages towaway trailer theft by fully enclosing your Bulldog Collar-Lok coupler that fits 2" hitch balls. Lowest Prices for the best trailer coupler locks from Blaylock Industries. Blaylock Total-Encasement Coupler Lock for 2" Bulldog Collar-Lok Couplers - Push Button part number BLTL-22 can be ordered online at or call 800-298-8924 for expert service.

  • All Info
  • Reviews (18)
  • Q & A (6)
  • Videos (1)
  • Photos
  • Why etrailer?

Blaylock Industries Trailer Coupler Locks - BLTL-22

Can be keyed alike with other Blaylock push-button locks. Sturdy, rustproof aluminum lock discourages towaway trailer theft by fully enclosing your Bulldog Collar-Lok coupler that fits 2" hitch balls.


  • Coupler lock deters theft of your trailer with a Bulldog Collar-Lok-style coupler
  • Heavy-duty shell fully encloses the coupler
  • 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 provides extra security measure
  • Keyed-alike option - select "Keyed Alike" to order multiples of this lock keyed alike or to key the same as other push-button-style Blaylock locks
  • Aircraft-grade, lightweight aluminum construction is strong and resists wear and corrosion
  • 2 Keys are included
  • Made in the USA


  • Application: 2" Bulldog Collar-Lok-style couplers
  • Overall dimensions: 4" long x 4" wide x 5" tall
  • Pin diameter: 5/8"
  • Weight: 2 lbs

After it has been secured in place, the Blaylock total-encasement lock renders your trailer's 2" Bulldog Collar-Lok-style coupler inoperable, ensuring peace of mind. Simply slide the lock over your coupler, push the 5/8" diameter pin into the coupler's hitch ball recess, and push in the lock mechanism. Your coupler is now completely surrounded. The sturdy steel pin extends to the top of the recess, and the pin cannot be accessed while the unit is locked.

TL22 Push Lock 2" Bulldog Collar Lock Coupler Lock by Blaylock Industries

Video of Blaylock Total-Encasement Coupler Lock for 2" Bulldog Collar-Lok Couplers - Push Button

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Blaylock Industries Trailer Coupler Locks - Surround Lock - BLTL-22 Review

Today were going to review part number BLTL-22. This is the Blaylock Total Encasement Trailer Coupler Lock for 2-inch Bulldog Collar-Lok Couplers. This coupler lock will prevent theft of your trailer. Its a sturdy lightweight corrosion resistant lock which will discourage trailer theft by fully enclosing the coupler. It is a highly visible lock which is daunting to would be thieves. Basically the installation on this would be the lock comes with two keys.

You put the tube style key into the lock and turn it to open it. It has an integrated 5/8-inch diameter pin which you could see here, it slides up and into the hitch ball recess of your trailer coupler. Once its all the way up into the coupler, you can push this and this push button lock will secure the unit to the trailer coupler. Again, it comes with two keys. This part is made of an aircraft aluminum construction which is strong and resists wear and corrosion.

When this is on your coupler it will safeguard your coupler from the elements and also keep it from getting damaged by impact. This part is made in the USA. Again, this will fit most trailers with 2-inch Bulldog Collar-Lok Style Couplers. Basically, by the Collar-Lok design, Ill show you what that style is. I have an example of a Bulldog Collar-Lok Coupler right here.

Basically what they had is it is a coupler that has a spring loaded collar that will go over the hitch ball. Basically, if you lift up on this latch, this will slide back and release that collar. Lets see if you could see that. You can see how its spring loaded and it pops up to opening the hole to fit over the hitch ball. Once its over the hitch ball, you could just push it down and then release the latch back down and the sleeve will slide up over the collar and lock it into place.

This lock is designed for this type of coupler. I want to set up set up here just to show you. That would be on your trailer sticking out. The way this lock would work again is turn the key, release the pin, then you would just take the opening part here, put it over the coupler. There we go, push the pin up into their recess in the coupler until its all the way up. Then just push the pushbutton lock. When you push that in, it will lock the pin into place and the pin is locked into the coupler. Theres no access to the Collar-Lok design of this coupler. As we said earlier, with this over the front of it will also help from any damage caused by impact to the coupler. This part is made in the USA. Now I want to show you how it opens. If you just put the key in, turn it, the pin will fall down out from the recess and that should do it. I do want to give you a few measurements on the lock itself. This will measure 4 inches by 4 inches and the actual height will be 5 inches. Again, the diameter of this pin here is 5/8 of an inch diameter. That should do it for a review on part number BLTL-22.

Customer Reviews

Blaylock Total-Encasement Coupler Lock for 2" Bulldog Collar-Lok Couplers - Push Button - BLTL-22

Average Customer Rating:  4.5 out of 5 stars   (18 Customer Reviews)

Can be keyed alike with other Blaylock push-button locks. Sturdy, rustproof aluminum lock discourages towaway trailer theft by fully enclosing your Bulldog Collar-Lok coupler that fits 2" hitch balls.

- BLTL-22

had some trouble getting the lock on the tongue of the bulldog, used a brick to hammer pin in and it is locked for sure 107319

- BLTL-22

I feel that this lock is to loose. Does not fit my Bulldog hitch very tight. Way to easy to get a crowbar between it and the hitch. 363039

- BLTL-22

Tough lock. Works great after I cut about an eight of an inch out of the interior nose. 396049


Great product. Beat up now. Appears someone wanted my trailer. The lock was tougher than the thief.

Bob F - 06/19/2018


- BLTL-22

Great product well made and fits tight. Made specifically for bulldog type trailer couplers. Did read other reviews and a few people had to grind/file to fit properly. We too had to file the end of pin down slightly (took 5 minutes). No big deal. Makes for a nice tight fit. 251553

- BLTL-22

had product in stock and was very quick to deliver. got an e-mail from Vendor and was on top of things. Good Job and Happy New Ya'll 168218

- BLTL-22

Like 430297


Good product no issues. Would buy against n

Don G - 09/08/2018


- BLTL-22

I have a diamond c utility trailer with a bulldog hitch. The device will not go far enough on the for the pin to go in the socket. So now my trailer, atv and pull behind brush hog are sitting in a hotel parking lot without a fictional lock. Will be returning the product 646653

- BLTL-22

Tough lock. Operates smoothly. Trailer has not been stolen! 621573

- BLTL-22

Currently have two and have had them a year or better and they are working like new! Awesome product! 592399

- BLTL-22

Easy install, fast delivery and perfect fit. 573771

- BLTL-22

I will have to modify my tongue to fit this lock but I do want to keep it because it seems to be a very heavy duty lock that could deter theft. 564300

- BLTL-22

Heavy duty bulldog hitch lock. 548963

- BLTL-22

Installed easily and definitely will protect my trailer. Ordering was easy and good follow through by staff. Arrived before promised date. 482244

- BLTL-22

The design of this lock makes me feel so secure about my trailer. Well done to the engineers. 369004

- BLTL-22

I called e-trailer with a couple questions on the trailer lock I felt was the right lock for me after much research. Renee answered everything with confidence and took my order right there. I received email confirmations and tracking information and received my lock in 3-4 days time. Very pleased with the fit and the product. Thank you Renee and e-trailer. 248325

- BLTL-22

was a little tight but nothing a little angle grinder couldn't fix. now it is easy to install and solid. 134403

- BLTL-22

Ordered and shipped on the same day. Had my lock in 4 days using standard shipping. If I need anything else for my trailers, I'll be contacting etrailer. Thanks etrailer!! 104559

- BLTL-22

Coupler Lock received in good working order in a timely manner. Fits on my Bulldog coupler easily and simple to use. 96128


Ask the Experts about this Blaylock Industries Trailer Coupler Locks
Do you have a question about this Trailer Coupler Lock?

  • Recommended Coupler And Hitch Lock Combination Keyed Alike
  • For your sleeve-lock coupler, I recommend the Master Lock Trailer Hitch Receiver Lock and Coupler Lock Set - 1-1/4" and 2" Hitches # 3794DAT. This will give you the hitch lock, the coupler ball lock and the pin lock. This kit is the best kit that has all three components keyed alike. If you want a better fit, you may need to move to a system with different keys. This Master Lock Set is very nice, but if you want the best coupler lock, I recommend you get something like the Blaylock...
    view full answer...

  • Recommendation for a Coupler Lock for a Collar-Loc Trailer Coupler
  • Master Lock coupler lock # 3784DAT is not the best option for a Collar-Lok coupler. For a Collar-Lok coupler I recommend a lock designed for then such as # BLTL-23 (2-5/16 inch ball), # BLTL-20-40D (1-7/8 to 2-5/16 inch balls), or # BLTL-22 (2 inch ball).
    view full answer...

  • Lock Recommendations for a Collar-Lok Style Trailer Coupler
  • It sounds like you have a Collar-Lok coupler such as # BD028244. For that type of coupler you could use lock # BLTL-23. The body is aluminum but the pin inside that goes way up into the coupler is steel. It fits 2-5/16 inch Collar-Lok couplers. For 2 inch models use # BLTL-22. Another option, if your coupler has the pin behind the collar to keep the collar from sliding back, is to use a lock such as # 28012 in place of the pin. This would prevent the collar from opening all the way....
    view full answer...

  • Availability of Replacement Keys for Blaylock Total Encasement Trailer Coupler Lock # BLTL-22
  • Although we can obtain replacement keys from Blaylock, we do not have extra keys on hand to ship out with the product. Your best bet would be to have some duplicates made locally by a locksmith. When you receive the lock, be sure to record the key number and keep it in a safe place.
    view full answer...

  • Coupler Lock for a 2 Inch Trailer Coupler
  • Blaylock Total-Encasement Coupler Lock # BLTL-22 is designed for Bulldog Collar-Lok couplers which are more narrow than regular coupler so I do not recommend trying to use it. I recommend using a coupler lock such as # DT25013KA or # 379DAT for your 2 inch coupler. I have linked review videos on both locks for you.
    view full answer...

  • Replacement Keys for Blaylock Total-Encasement Coupler Lock
  • There are replacement keys available for the Blaylock Total-Encasement Coupler Lock # BLTL-22. You will need to get the key that corresponds to the one on the key; I will list the key numbers we have available as replacements, and you would be able to order the one with the corresponding number. Blaylock Industries Replacement Key 51131: # BL040-TL38KEY51131 Blaylock Industries Replacement Key 51132: # BL040-TL38KEY51132 Blaylock Industries Replacement Key 51133: # BL040-TL38KEY51133 Blaylock...
    view full answer...

Do you have a question about this Trailer Coupler Lock?

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Info for this part was:

Expert Research:
Michael L
Installed by:
Jeff D
Written by:
David L

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