EZ Lock Trailer Coupler Lock for 1-7/8", 2", 2-5/16" Bulldog Collar-Lok Couplers
(702 reviews)
Price: $79.34
In Stock
EZ Lock Trailer Coupler Lock for 1-7/8", 2", 2-5/16" Bulldog Collar-Lok Couplers
Item # BLTL-20-40D
Our Price: $79.34
Orders above $99 qualify for Free Shipping
In Stock
- All Info
- Reviews (702)
- Q & A (0)
- Photos
- Why etrailer?
Blaylock Industries Trailer Coupler Locks - BLTL-20-40D
- Fits 1-7/8 Inch Ball
- Fits 2 Inch Ball
- Fits 2-5/16 Inch Ball
- Surround Lock
- Aluminum
- Keyed Unique
- Blaylock Industries
- Universal Application Lock
Fight back against trailer thieves with this rugged, rustproof aluminum trailer coupler lock. Simple yet effective, it deters towaway theft of your trailer that has a Bulldog Collar-Lok coupler. Includes stainless steel padlock.
Features:
- Coupler lock deters theft of your trailer that has a Bulldog Collar-Lok-style coupler
- Heavy-duty bracket fits around your trailer's coupler
- Raised ball on platform sits inside of coupler
- Hardened steel pin slides through the bracket to secure the lock to your coupler
- Stainless steel padlock with hardened steel shackle secures pin in place
- Aircraft-grade, lightweight aluminum construction is strong and resists wear and corrosion
- 2 Keys are included
- Made in the USA
Specs:
- Application: most 1-7/8", 2", and 2-5/16" Bulldog Collar-Lok-style couplers
- Overall dimensions: 2-1/2" long x 4-1/2" wide x 5" tall
- Pin diameter: 3/4"
- Weight: 4 lbs
This Blaylock EZ Lock is designed to work with Bulldog Collar-Lok couplers that fit 1-7/8", 2", or 2-5/16" hitch balls. After it has been secured, this coupler lock renders your trailer's coupler inoperable, ensuring peace of mind.
With the slanted side of the lock pointing toward the front of the coupler, simply place the coupler lock's raised ball up under the coupler and into the coupler's ball hole. The sides of the lock will surround the coupler. Slide the 3/4" diameter pin through the holes in the lock and secure the pin in place with the included Master Lock padlock.
TL20 Bulldog Collar Lock Coupler Lock by Blaylock Industries
40DPF MasterLock Padlock
Customer Satisfaction Score:
90% were satisfied with this product
10% of customers were not satisfied
- Wrong item was ordered
- Did not fit
- Did not arrive in time
Customer Reviews
EZ Lock Trailer Coupler Lock for 1-7/8", 2", 2-5/16" Bulldog Collar-Lok Couplers - BLTL-20-40D
Average Customer Rating: 4.7 out of 5 stars (702 Customer Reviews)
Fight back against trailer thieves with this rugged, rustproof aluminum trailer coupler lock. Simple yet effective, it deters towaway theft of your trailer that has a Bulldog Collar-Lok coupler. Includes stainless steel padlock.by: Kevin11/26/2022
Coupler lock shipped/arrived quicker than expected and works as intended.
by: Y-Lee Kioti06/25/2017
This lock system is simple and weather exposure should not be a hindrance for removal when needed.
I would like to see the pin made of hardened steel. May get a machinist to fab one up out of a harder Rockwell rating.
Painted it Orange and it contrasts very well to the black trailer frame.
This is a visual que for those passing by the county road, that the coupling has 'something' on it.
The Master lock appears to be of a higher quality the the same design but sold for storage unit use. It may be made by Master but have no way of knowing. The lock operates very smoothly and the stainless body is perfect for outdoor application.
A shout out to Jennifer who has been providing excellent customer service from day one.
This means I will use etrailer for future trailer needs, thanks to her.
Hope this helps others.
Comments
still a great solid product. Spray some silicon in the lock about every few months and all works well.
Y-Lee K - 06/25/2018by: Jeff09/20/2022
Works well, but with the right tools and time could be defeated
Comments
To be honest, the same can be said for just about any lock. Sad to say, locks are only good for keeping honest folks honest. Given enough time, a determined thief can defeat just about any lock. That this lock WILL do is provide deterrence, and hopefully the potential thief will move on to an easier target.
-- 
Mike L - 09/30/2022by: BD12/06/2022
This works great with the Bulldog coupl ers
by: Reggie 12/01/2021
very friendly folks and very quick deli very
Comments
Very good lock heavy well built buy it you will like it
Reggie - 12/02/2022
by: Vincent 10/19/2022
Great products, fair prices and professional customer service
by: Joe L.04/20/2017
We have several trailers we use to haul equipment to job sites and have to leave them at site over night so these locks are very sturdy which gives us security from theft and was able to get all locks keyed alike so one key works on all trailers which is convenient.
by: Ray07/25/2021
The product is well designed and I'm sure would work on many/most couplers. However I have an Equal-i-zer 4-point weight distribution hitch with sway control, and the EZ Lock simply won't fit. The Equalizer is too large and the EZ Lock wasn't designed to give enough clearance to get on there. So I wasted my money.
Buy this if you have another configuration, but be forewarned if you have what I have and avoid this product.
Comments
Thank you for your review. This lock is designed to fit Bulldog Collar-Lok-style couplers.
-- Sierra K - 07/30/2021by: Devan07/11/2019
The fit is perfect for the bulldog coupler. It should keep unwanted thieves away, I feel safer about leaving my trailer unattended
by: Frank10/25/2021
It was too lose and fell off.
I had to put a sleeve around the pin to take up the slack. I have 3 different trailers and it was the same thing.
After the alterations it works good.
Comments
This item works with Bulldog Collar-Lok couplers only. I believe this universal coupler lock will work better for you and your 3 different trailers: Item # DT25013KA
Fastway Universal Trailer Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers
$54.58.
-- Fastway Universal Trailer Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers
$54.58.
Sierra K - 10/26/2021
Helpful Linkby: Chuck 09/12/2021
It is a very good lock for a standard ball trailer. Lock has a reasonable quality Master short shackle key lock with 2 keys.
Very easy to use
I recommend you routinely (every 3-6 months) lubricate the lock with graphite or WD-40 to prevent the lock and shackle from binding.
by: Stephen 09/26/2022
Just what i needed.
by: Eric 08/31/2022
Great product not stolen yet
by: kustomize02/10/2017
Great product, perfect fit for my bulldog hitch. Everyone that sees it comments about what a strong lock it is. It is easy to use and just its looks is a huge deterrent.
It is easy to put on and take off. I am glad I found EZ Lock Trailer Coupler Lock for Bulldog Collar-Lok Couplers. I would definitely buy it again!
Comments
Still lovin my EZ Lock Trailer Coupler Lock!
kustomize - 02/10/2018Love the lock. I lost my first one and had to purchase a second one - been more careful with it. It is a great lock. Ive had several people comment on it and want one like it so Ive referred them to you guys.Thanks for the follow-up.
kustomize - 02/10/2018
by: Julie03/16/2018
I highly recommend This lock, along with the offered MasterLock padlock to anyone wanting to secure a trailer with a Bulldog hitch. I am very pleased with the quality & workmanship of this product to help secure my Horse Trailer hitch.
Comments
After 1 year, Still very Happy with this lock. It is on my trailer all the time, removed only to hook the trailer to the truck. Excellent, quality product!
Julie - 03/16/2019by: LaVoyd in Oklahoma11/12/2014
I done some research about this and similar products and found this product to be the best bank for the buck. made to fit my Bulldog hitch. It is used by folks that sell trailers, I thought that was good enough for me...
ordered one with the master lock from e_trailer received in in just a few days as stated as for pricing ...you won't be it by much if any!
Comments
lock bracket seems real secure but is a little more trouble than old ,old style ...throw on a lock and your done.
LaVoyd i - 11/13/2015by: Anthony 09/10/2022
Great product and excellent service !
by: Michael W11/09/2017
etrailer was excellent in updating me on my order and delivering on time.
The trailer coupler lock worked exactly as expected. I couldn't ask for more.
Comments
After a year there is no change. It works just as I expected. It has been off and on my trailer multiple times, stored in the elements, and it shows no signs of wear.
Michael W - 11/09/2018by: David 08/13/2022
Delivered as advertised
by: Kurt 12/18/2021
This fits my 2 5/15 coupler perfectly. This is a simple to use and a great product.
Very satisfied with your product.
by: Steve H05/12/2020
I am very pleased with the tongue lock. I use it on my boat trailer which I often leave in a Marina for several days at a time while the boat is in a slip. I tend to think of it like all deterrents, another layer of security to overcome which will encourage movement towards an unlocked trailer hitch. It works well, seems sturdy and accomplishes the purpose.
by: Mark 07/28/2022
Working ok
25
695
Show More Reviews
See what our Experts say about this Blaylock Industries Trailer Coupler Locks
- Recommended Collar Style Trailer Coupler LockThe EZ Lock Trailer Coupler Lock for 1-7/8", 2", 2-5/16" Bulldog Collar-Lok Couplers # BLTL-20 is what I recommend for your style coupler as long as it fits the dimensions. This coupler is 3-3/16 inches wide and 4 inches tall. It is roughly 2-5/8 inches tall to the bottom of the 3/4 inch pin. If you want this with the padlock, then use # BLTL-20-40D instead.
view full answer...
- What is The Interior Height Of The EZ Lock Trailer Coupler Lock BLTL-20?The EZ Lock Trailer Coupler Lock # BLTL-20 is 2-5/8" from the base of the ball to the bottom of the lock pin. The EZ Lock Trailer Coupler Lock # BLTL-20-40D is available with both the coupler lock and Master Lock Stainless Steel Padlock with Shielded Shackle # ML40D for the best protection.
view full answer...
- Coupler Lock Recommendation for a Bulldog Collar Lok CouplerThe Bulldog couplers are usually the collar-lok style couplers so you would need to go with a different coupler lock than the # BLTL-33 that you referenced. Instead you would wan the part # BLTL-20-40D as it is specifically designed for collar lok Bulldog coupler. I attached a review video for you to check out as well.
view full answer... - Coupler Lock for Atwood 2-Inch A-Frame CouplerThe Blaylock EZ Lock Trailer Coupler Lock # BLTL-20-40D is specifically meant for use with Bulldog Collar-Lok-style couplers such as # BD028381. For your Atwood 2-inch A-frame coupler you can instead use part # BLTL-33 and lock part # ML40D.
view full answer... - Hitch Lock Recommendation for Bulldog A-Frame Collar Lok CouplerFor your Bulldog Collar Lok coupler part # BD028499 we have the Blaylock Coupler lock part # BLTL-20-40D which was designed specifically for your coupler so it would work great. I attached an install picture and review video for you to check out as well.
view full answer...
- Coupler Lock Recommendation for a Bulldog Collar-Lok CouplerYes, check out the EZ Lock Trailer Coupler Lock # BLTL-20-40D. This coupler lock is compatible with Collar-Lok Couplers and should work well with the Bulldog Collar-Lok Adjustable Channel Mount Coupler # BD028657 you referenced.
view full answer... - Lock Recommendation for Bulldog Collar-Lok Trailer CouplerI'm assuming you have a Bulldog Collar-Lok trailer coupler like the # BD028244 you'd looked at. Blaylock makes a lock specifically designed for a Bulldog Collar-Lok trailer coupler, part # BLTL-20-40D. The lock includes the lock assembly itself as well as the locking pin and disc padlock. I'll link you to a demonstration video featuring the # BLTL-20-40D coupler lock.
view full answer... - Recommendation for a Coupler Lock for a Collar-Loc Trailer CouplerMaster 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... - Coupler Lock Recommendation for Trailer with 4 inch Wide CouplerWe have a solution that will work great but the part # BLTL-20-40D would not be what you'd need as it is designed to fit a Bulldog Collar Lok couplare and is only 3-3/16 inches wide. The # DT25013KA would instead be what I recommend as this fits all standard coupler sizes like what you have.
view full answer...
- Coupler Lock that Will Fit 34 1995 Airstream Excella 1000 Travel TrailerIf your 1995 Airstream Excella 1000 Travel Trailer has a Bulldog Collar Lok style of coupler on it then yes, the EZ Lock Trailer Coupler Lock # BLTL-20-40D would fit and work well. I pulled up pictures of your trailer and wasn't able to verify that this was the style of coupler that the trailer had, but it's also very common for trailers to have the couplers swapped so you may have a Collar Lok style coupler like what I attached a picture of. If you have a different style of coupler we...
view full answer...
- Lock Similar to Blaylock that is Steel Instead of AluminumAluminum is a softer metal so if you were worried about it getting cut through quickly, and I don't fully blame you, I'd go instead with the FastWay lock part # DT25013KA which is steel and a similar design. This also fits nearly all coupler styles too which makes it very versatile.
view full answer... - Recommended Lock for Bulldog Collar-Lok CouplerFor your trailer with a 2" Bulldog Collar-Lok coupler I recommend the EZ Lock Trailer Coupler Lock for 1-7/8", 2", 2-5/16" Bulldog Collar-Lok Couplers # BLTL-20-40D. The Amplock you referenced fits a different style of Bulldog coupler. The Blaylock EZ Lock is specifically designed for your coupler style. Once it is attached, the coupler will be inoperable providing you with the security you are looking for.
view full answer... - Coupler Lock that Fits Airstream with Trigger Latch CouplerFor your Airstream with a trigger latch style coupler a Fastway Coupler lock like the part # DT25013KA would be your best option as it is the most universal style coupler and it works really well.
view full answer...
- Is There A Universal Coupler Lock That Can Be Keyed AlikeGreat question. EZ Lock Trailer Coupler Lock for 1-7/8", 2", 2-5/16" Bulldog Collar-Lok Couplers # BLTL-20-40D. We are unable to key alike the locks that come with the EZ lock trailer coupler. However, we can key alike the fastway trailer coupler. To do so you will select key alike from the drop down menu the select how many you would like to purchase. It is that easy. Fastway Universal Trailer Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers # DT25013KA.
view full answer... - Trailer Coupler Lock Compatible with Wide CouplerIf you have a Bulldog Collar-Lok Coupler, then the EZ Lock Trailer Coupler Lock for 1-7/8", 2", 2-5/16" Bulldog Collar-Lok Couplers # BLTL-20-40D is your best option. If you want the pin style coupler lock, then the Bulldog Easy Access Coupler Lock - Swivel Head - Chrome # BD580409 is the largest span option at 3-5/8 inches.
view full answer...
- Comparing Different Types of Coupler LocksWe have a variety of locks for your coupler, each with their own applications. If you have a fat lip coupler, I recommend the etrailer Trailer Coupler Lock - Flat Lip, part # e98897. This yellow lock can fit a 2" coupler and is an immediate deterrent as the color quickly grabs attention. The lock has a stem that reaches into the coupler and can't be wiggled free. If you don't have a fat lip coupler but still want a lock that reaches into the coupler, I recommend the EZ Lock Trailer Coupler...
view full answer... - Best Keyed Alike Fastway Universal Coupler LockI have a solution for you, and we have several lock assemblies that can be keyed alike, but the one you were looking at item # BLTL-20-40D can not be keyed alike. I recommend the Fastway Universal Coupler Lock Key 316 item # FA86-0015-316. This coupler lock also fits 1-7/8", 2" and 2-5/16" couplers. I have linked our entire selection of couple locks that can be keyed alike as well as a couple of review videos for this lock.
view full answer... - Coupler Lock Recommendations for a RAM Brand TrailerIf your RAM brand trailer has a collar-lock style coupler like the Bulldog Coupler # BD028444 yes the EZ Lock Trailer Coupler Lock # BLTL-20-40D would be an excellent choice as a trailer lock. A more universal coupler lock that we offer is the Fastway Coupler Lock part # DT25013KA. I attached review videos for both coupler locks for you to check out.
view full answer... - Recommended Lock for Bulldog BD028499 Collar-Lok Trailer CouplerThe Bulldog # BD028499 Collar-Lok coupler is about 2-3/4 inches wide at the point of the coupler where the locking pin is located, so the # e98887 lock you'd looked at wouldn't have a long enough span to work for you. I'd recommend the same lock with a longer span, part # e98888 which would fit just fine. For a more secure lock that's specifically designed to work with a coupler like this, I'd go with the Blalock # BLTL-20-40D which would be harder to defeat and would provide a higher...
view full answer... - Coupler Locks for a Bulldog Style CouplerYes, check out the EZ Lock Trailer Coupler Lock # BLTL-20-40D. This coupler lock is compatible with Collar-Lok Couplers and then use for a pin style lock to slide through the coupler you would want the Masterlock Trailer Coupler Lock part # 2847DAT.
view full answer... - Recommended Coupler Lock For Best Theft DeterringI'm sorry you don't find the Reese Tow and Store Lock Kit # RP7014700 to be acceptable. Based on your description it sounds like you are focused on the coupler lock and we have very positive reviews on this product. However we do offer a wide range of each product to allow you to determine the best fit for your needs and budget. I have linked the page to all of the options to assist. I personally like the Fastway Universal Trailer Coupler Lock # DT25013KA and that is my recommendation...
view full answer...
Do you have a question about this Trailer Coupler Lock?
Why etrailer.com?
At etrailer.com we guarantee:Real product know-how.
We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.Most detailed, accurate trailer coupler lock information available.
Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.Installations, made easy.
We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.Fast shipping.
Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.Personalized service for life.
We provide one-on-one, personalized service from the ordering process through the life of your product.Trusted since 1946.
We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.Returns Policy
Need to return an item? No problem. Please read our Returns Policy for more information.
Info for this part was:
Installed by:
Jeff D
Installed by:
Robert C
Installed by:
Adam E
Expert Research:
Jameson C
Expert Research:
Adam R
Written by:
David L
Updated by:
Adele M
Updated by:
Erin H
Updated by:
Noah M
Video by:
Dustin K
Video Edited:
Chris R
Video Edited:
Zach D
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Product Experts Available Now!
Call 1-800-940-8924
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.