1. Trailer Coupler Locks
  2. Blaylock Industries
  3. Fits 1-7/8 Inch Ball
  4. Fits 2 Inch Ball
  5. Fits 2-5/16 Inch Ball
  6. Surround Lock
Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum

Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum

Item # BLTL-33-40D
lowest price pledge
Our Price: $69.51
Trailer Coupler Locks
Shipping Weight: 5 lbs
Quantity: 
In Stock
Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum Keyed Alike BLTL-33-40D
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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.

Product Images

In Use/Installed

Customer Photos

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 trigger-, latch-, or handwheel-style coupler. Includes stainless steel padlock. Lowest Prices for the best trailer coupler locks from Blaylock Industries. Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum part number BLTL-33-40D can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (629)
  • Q & A (12)
  • Videos (2)
  • Photos
  • Why etrailer?

Blaylock Industries Trailer Coupler Locks - BLTL-33-40D

  • Fits 1-7/8 Inch Ball
  • Fits 2 Inch Ball
  • Fits 2-5/16 Inch Ball
  • Surround Lock
  • Blaylock Industries
  • Keyed Alike
  • Universal Application Lock
  • Aluminum

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 trigger-, latch-, or handwheel-style coupler. Includes stainless steel padlock.


Features:

  • Coupler lock deters theft of your trailer that has a trigger-style, latch-style, or handwheel-style coupler
    • 3 Pin hole positions allow for tight fit on a variety of couplers
  • Heavy-duty bracket fits around your trailer's coupler
    • Raised ball on platform sits inside of coupler
  • Steel pin slides through the bracket to secure the lock to your coupler
  • Stainless steel padlock with hardened steel shackle secures pin in place
  • Keyed-alike option - select "Keyed Alike" to order multiples of this lock keyed alike or to key the same as other Blaylock locks that use the 40D Master Lock padlock
  • Aircraft-grade, lightweight aluminum construction is strong and resists wear and corrosion
  • 2 Keys are included
  • Made in the USA


Specs:

  • Application: most trigger-style, latch-style, or handwheel-style couplers that fit 1-7/8", 2", and 2-5/16" hitch balls
    • Trigger style: Fulton, Shelby, Dutton-Lainson, Atwood, and similar
    • Latch style: Atwood, Fulton, and similar
    • Larger 8,000-lb and 10,000-lb Atwood
  • Overall dimensions: 6-1/4" long x 4-1/4" wide x 5-1/4" tall
    • Inside width: 4-3/4"
  • Pin diameter: 3/4"
  • Weight: 4-1/5 lbs


This Blaylock EZ Lock is designed to work with trigger-style, latch-style, or handwheel-style 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 pointed 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 1 of the 3 pin hole positions on the lock, selecting the position that will hold the lock snugly in place on your coupler. Then secure the pin in place with the included Master Lock padlock.



40DPF MasterLock Padlock

TL33 Universal Coupler Lock by Blaylock Industries





Video of Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum

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




Video Transcript for Blaylock EZ Lock Trailer Coupler Lock Review

Today, on our trailer, we're going to install and review the Blaylock EZ Trailer Coupler Lock with Padlock, Part Number BLTL-33-40D. This trailer coupler lock is a heavy duty rugged lock. This is a stainless steel padlock with hardened steel shackles that secure the pin in place. It's a simple, yet effective design that will deter theft of your trailer that has a trigger style, latch style, or even a hand wheel style coupler. It will fit most applications for 1 7/8, 2 inch and 2 5/16, hitch ball couplers. With our kit is the master lock padlock and 2 keys. Note this can also be keyed alike, so that all your padlocks can match a single key.

Here in the top we've got our 3/4 inch pin that will go through the pre drilled holes. As you can see, we have 3 different holes. Those holes are mirrored on the other side so that we can choose the best hole to fit our coupler. We're going to go ahead and fit this one in place. If I chose the hold closest to the latch, go all the way through and then put a lock on the pin. You can see how it would be difficult to remove and take off locking our coupler, it will help deter from being stolen.

Supplied with our kit is the master lock padlock. Simply open up the barrel, rotate it though the pre drilled hole in our pin, remove the key and now the pin is locked to the coupler lock, and the coupler lock is locked to the trailer. We've got the aircraft aluminum housing, it's a one piece housing plus our pin. That will complete our install and review of the Blaylock EZ Lock Trailer Coupler Lock with Padlock Part Number BLTL-33-40D. .


Customer Reviews

Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum - BLTL-33-40D

Average Customer Rating:  4.8 out of 5 stars   (629 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 trigger-, latch-, or handwheel-style coupler. Includes stainless steel padlock.

- BLTL-33-40D
by:

Super fast delivery and just what I wanted. eTrailer delivered again. 284009



- BLTL-33-40D
by:

Very solid. Multiple holes provide ability to fit and the small ball locked it in place. I had some difficulty attaching one but was able to get it with multiple attempts. I’m confident my flatbed trailers are now secure. etrailer assistance is very helpful. 459528


Comments
The locks I bought have provided the security and confidence because my trailers have been stored in a remote area. My step son even bought one for his trailer. Good product for reasonable price.
Mark - 12/12/2018

46631

- BLTL-33-40D
by:

I am very pleased with the products I have purchased online from etrailer.com They have an excellent line of products to choose form and the short videos about each product are very helpful. Etrailer.com communications with their customers is very good and delivery of products were on time. The products I have purchased have been of high quality. 121929



- BLTL-33-40D
by:

This is a simple to use and secure lock for my new trailer. The Blaylock coupler lock will not rust and the MasterLock SS padlock works perfectly with it. Worth the peace of mind. Good service from etrailer and I would use them again. 589557



- BLTL-33-40D
by:

Easy to attach to my 19' travel trailer. It's bigger than I expected and It seems a little loose, but should provide enough deterrence to stop thieves. The Master lock is a perfect addition. 465374


Comments
After one year, its still working out well. This product should last a lifetime.
DavidW - 01/06/2019

48271

- BLTL-33-40D
by:

Hard to find item not available at any of my local retailers. Delivered promptly and product was as expected. Very easy. 482298



- BLTL-33-40D
by:

I like this lock. It is beefy and will be a theft deterrent. It is also simple to install and remove. I found that the _inside_ dimension is 5.5 inches wide - the outside width is 6.5 inches. It just fits the coupler on my trailer. It would be even better if it were painted bright red or orange. 85329



- BLTL-33-40D
by:

I ordered 4 of these keyed alike. I live on a small peninsula surrounded by saltwater, my old locks rusted up and became useless. This lock setup is beefy and shouldn’t rust i I p on me. The shipping was fast and keyed alike option is great. 747421



- BLTL-33-40D
by:

Love this product! 745547



- BLTL-33-40D
by:

As previously mentioned in another review, the casting of BLTL-33 has numerous places where grinding was done during the manufacturing process. Definitely not the level of quality that I was expecting. 732996



- BLTL-33-40D
by:

Fit every ball coupler trailer i have. Built solid 730521



- BLTL-33-40D
by:

Great product and quick delivery 694701



- BLTL-33-40D
by:

Solid, versatile product... I can only wonder how many thousands of dollars I could have saved on stolen trailers over my career had we had something this uniformly usable along the way.... 678460



- BLTL-33-40D
by:

The product was as advertised, fast shipping, and great communication! I will definitely do business here again! 487087



- BLTL-33-40D
by:

Have used one of the Receiver Locks on a flat bed trailer and it works fine. Haven't tried the one we bought for a bale trailer as the trailer is still hooked to the pickup. Fast service. Box was damaged but everything was in it. 428963


Comments
Locks are working fine and we like them
Lillian H - 09/06/2018

43251

- BLTL-33-40D
by:

Nice sturdy hitch lock, bought a cheap Reese style hitch lock and lost the key and was able to drill the lock mechanism out faster than unlocking it with a key, this system has a better idea with the master lock, about as good as your going to get to keep the thieves away who don't have a grinder to cut the hitch lock off the hitch 333582



- BLTL-33-40D
by:

This is a great hitch lock, it fits all my trailers, so I ordered another one. I use it on my rv to help secure it as I live in a rural area with. The hitch is easy to use and is adjustable to fit most if not all hitches. 304142



- BLTL-33-40D
by:

e trailer is the only company that I purchase trailer related items from. They are an awesome company to work with. I highly recommend them. 258494



- BLTL-33-40D
by:

Just bought a travel trailer, put the coupler lock on there and feel secure with that on there. Fits nice and snug. Thanks 257712



- BLTL-33-40D
by:

I have been very impressed with this locking system for my trailer - Would definitely buy another one if needed 249852



- BLTL-33-40D
by:

One solid piece of Hardware ! wow the service was excellent - i ordered on a Sunday and got ship notification that is was shipped out on Sunday - who works on Sundays ? these guys do ! Can't wait to get it on my boat trailer at the lake, only asset that is not secured - now i will sleep with no worries - 60 bucks to secure a $2,000 trailer is a no brainer - get one ! 235886


Comments
Excellent device, worth the peace of mind
Steve R - 01/19/2017

22250

- BLTL-33-40D
by:

I read the reviews and it is exactly as I expected. However, I was surprised that the reviews also said the follow up from the company was excellent. I didn't believe it, but now I do. Great company to work with. Thanks!!!!! 223818



- BLTL-33-40D
by:

Fit perfect looks great. 165469



- BLTL-33-40D
by:

Easy to use, adds one more deterrent to would-be thieves. Light weight, good for those of us trying to keep towing weight down. Showed up a day earlier than predicted by etrailer. 158621



- BLTL-33-40D
by:

Product arrived in short time & appears to be very well constructed and will let me rest a little easier with trailer parked for extended periods. 114284


25
655
Show More Reviews

Ask the Experts about this Blaylock Industries Trailer Coupler Locks

  • TL 33 and TL 45 Blaylock Trailer Coupler Locks
    I believe what you're looking for is the Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers # BLTL-33-40D. This has the TL 33 and then what I could find on the TL 45 is that it's the same part as the circular padlock on this coupler lock. This has an aluminum construction so it will hold up really well to the elements and it fits a wide variety of couplers on the market. Attached is a sample installation video for you to check out.
    view full answer...
  • Locks Needed For 2-1/2 Inch Hitch Receiver And Coupler On Trailer
    I was unable to find a combination system that would work to lock both the coupler on your trailer and also the hitch receiver on your 2013 Dodge Ram 2500 with a 2-1/2 receiver. For a simple system to secure your coupler I recommend the Blaylock EZ Lock Trailer Coupler Lock, part # BLTL-33-40D. This lock simply inserts into the the coupler and uses a 3/4 inch pin to secure the lock to the coupler. A keyed Master Lock is included that is inserted through the pin on the lock. For...
    view full answer...
  • Recommended Trailer Coupler and Padlocks Keyed Alike
    For your coupler locks to enable you to get all your locks keyed alike, I recommend the Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum # BLTL-33-40D. This will use the 40D Master Lock Padlock and they can be keyed alike to each other by selecting that from the dropdown on the product page and adding the quantity desired. To get the locks all keyed alike you will do the same thing with # ML40D. The easiest option is to order the total number of...
    view full answer...
  • Best Coupler Lock For Titan Model 10 Coupler for 2-5/16" Hitch Ball
    The best trailer coupler lock for your Titan Model 10 Brake Actuator # T2478100 is the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33-40D because it locks your actuator with a stainless steel padlock that has a hardened steel shackle and busting through it would require not only a lot of time, but some significant tools. An everyday thief would have no chance of coming away with your trailer if you have this lock on your Titan actuator. For added security so you will always be able...
    view full answer...
  • Recommended Coupler Lock and Padlock Compatible with Standard Travel Trailer Couplers
    The EZ Lock Trailer Coupler Lock for 1-7/8", 2", 2-5/16" Bulldog Collar-Lok Couplers # BLTL-20 is specifically designed for a collar lock style coupler like # BD028657. For a standard travel trailer, you most likely do not have that style coupler, so I recommend the Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum # BLTL-33 for the same style that is compatible with most travel trailer coupler styles. If you want one with a padlock included, I recommend...
    view full answer...
  • Trailer Coupler Lock For Square Coupler With 2-5/16 Ball
    It sounds like you have an Unique Functional Product 2-5/16" square coupler which was bought out by Dexter. The MegaHitch Coupler lock part # UF35-946510 is designed to fit the standard sized coupler so it will most likely not be wide enough or tall enough to fit the square coupler according to Ultra-Fab. I recommend to measure the height and width of your particular square coupler and compare it to the Blaylock EZ Lock Trailer Coupler Lock part # BLTL-33-40D which has a inside width...
    view full answer...
  • Recommended Coupler Lock for the Titan Model 20 Brake Actuator
    I do have an option for you but the release handle on the Titan Zinc-Plated Brake Actuator part # T4750720 is going to limit the use of some coupler locks like the MegaHitch Lock Coupler Vault Pro part # UF35-946510. Instead, I recommend the Blaylock EZ Lock Trailer Coupler Lock part # BLTL-33-40D. In order to break though this lock you would have to cut though a 3/4" thick hardened steel pin which is easier said than done. This would require power tools but if a would-be thief does have...
    view full answer...
  • Inner Dimensions of the Blaylock EZ Lock Coupler Lock # BLTL-33
    I pulled the Blaylock EZ Lock Coupler Lock, # BLTL-33, from our warehouse and took some measurements for you. The inside width of this coupler lock is 4-3/4 inches. From the base to the bottom of the pin, it measures 3-1/8 inches (see photo). If you do not have a padlock yet, I recommend looking at the Blaylock EZ Lock Coupler Lock with Padlock, # BLTL-33-40D. This is the same coupler lock, but it includes a stainless steel padlock. You could also just purchase the lock separately as...
    view full answer...
  • Coupler Lock That Fits 1-7/8" Shelby Coupler
    There is a coupler lock available for your 1-7/8" Shelby coupler, though they locks themselves aren't truly "universal;" oftentimes they say they will fit "most" but will name specific brands and types they fit. For example, the Master Lock Universal Trailer Coupler Lock # 379DAT will fit a 1-7/8" straight lip, rolled lip and surge brake/hydraulic couplers from Shelby, but also from Reese, Fulton, Valley, Atwood, Shelby, Putnam, Bulldog, Dutton-Lainson and UFP. There is also the Blaylock...
    view full answer...
  • Will Blaylock EZ Lock Trailer Coupler Lock fit UFP Square Bodied Coupler
    If the front part of your square-bodied coupler is approximately 3 inches tall, based on the inner dimensions of the lock the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 will work well for you. The # BLTL-33 has inner dimensions of 3-1/8 inches x 4-3/4 inches, when the bar is installed in the tallest position. Another factor to consider is the location of your coupler latch. The key is securing the lock in the underside of the coupler while also covering the latch on top of the coupler...
    view full answer...
  • Trailer Coupler Lock for 1-7/8, 2, and 2-5/16 Inch Couplers that Can be Keyed Alike
    Unfortunately, the two locks you asked about cannot be ordered keyed alike or rekeyed but I do have some options for you. We have some trailer coupler locks that can be ordered in multiple quantities and keyed alike and will fit a 1-7/8, 2, and 2-5/16 inch couplers. The Blaylock EZ Lock Trailer Coupler Lock # BLTL-33-40D is one. It uses a heavy-duty bracket that fits around the coupler. Another option is the Fastway Universal Coupler Lock # FA86-0015-312 which is ordered with the...
    view full answer...
  • Coupler Lock for Dexter DX12.5 (Model 10) Actuator with Wide Lip
    The Master Lock Trailer Coupler Lock # 377DAT you purchased can accommodate a max coupler width (including lip) of 4 inches , so for a lock that works with up to a 4-3/4 inch coupler width, I recommend the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33-40D. I pulled our Titan Model 10 actuator # T2477600 (Dexter DX12.5), and found that it measures just over 4-5/8 (4.63) inches edge to edge of the coupler lip, so the BLTL-33-40D will definitely be wide enough and work perfectly with...
    view full answer...

Do you have a question about this Trailer Coupler Lock?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality trailer coupler locks for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • 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
Written by:
David L
Expert Research:
Jeffrey L
Updated by:
Hannah L

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.