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  1. Trailer Coupler Locks
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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
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Trailer Coupler Locks
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Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum Universal Application Lock BLTL-33
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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-style, latch-style, or handwheel-style coupler. Padlock sold separately. 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 can be ordered online at etrailer.com or call 1-833-496-1390 for expert service.
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  • Reviews (670)
  • Q & A (0)
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  • Why etrailer?

Blaylock Industries Trailer Coupler Locks - BLTL-33

  • Fits 1-7/8 Inch Ball
  • Fits 2 Inch Ball
  • Fits 2-5/16 Inch Ball
  • Aluminum
  • Surround Lock
  • 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 trigger-style, latch-style, or handwheel-style coupler. Padlock sold separately.


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
    • Padlock (sold separately) is required to secure pin in place
  • Aircraft-grade, lightweight aluminum construction is strong and resists wear and corrosion
  • 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: 4-1/4" long x 6-1/4" wide x 5-1/4" tall
  • 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 a padlock (sold separately).



TL33 Universal Coupler Lock by Blaylock Industries - Padlock Not Included






Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (670 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-style, latch-style, or handwheel-style coupler. Padlock sold separately.

by:

This tongue lock will work good but is rather loose at best when installed. I’ve seen better tongue locks but I wanted one that would accept my keyed alike disc padlocks. So this will work.


Comments
Great. Lock keeps my trailer safe
DTP - 01/14/2022


by:

E trailer sells Quality products and is number 1 as far as sales and service goes I have had more complements on their products on my trucks and trailers they are % stars all the way ,fast shipping you get it on time or before unlike others, very helpful to find what you are looking for. I just wish I had some stickers so I could let people know where to get Quality Thanks very much Mark Sleeper




by:

So far no issues. But then again, I haven’t had anyone try to steal my trailer yet. My biggest complaint is how sloppy the fit is. I did some searching and found out a racquetball is the same size as my trailer hitch, so I cut a hole in one and popped it onto the lock. Now I can just insert the the lock into the tongue and latch it for a perfect fit.




by:

High quality! Actually fits my cargo trailer, as most locks do not. Great they provide dimensions in the product detail.




by:

Order was processed promptly and the trailer hitch lock fits great




by:

Great, solid locking mechanism! It's no flimsy piece of metal, so if you use a good padlock of some sort (I love Paclock - pretty much unpickable and very hard to force), any thief will need some serious tools to hack / cut through this piece of hardware. Very simple - fits great on my two inch coupler. Definitely a good investment to protect your equipment!




by:

This is by far the best coupler lock I’ve ever owned. I like it so much I bought 5 of them so my son could lock up all of his trailers.


Comments
I will only buy these trailer locks! They work well on any type trailer with a hitch irregardless of the ball size or shape of the hitch
Richard - 03/13/2022


by:

I’m repeat customer. I have 3 different types of trailers, always need maintenance and etrailer’s prices and delivery speed never let me down.




by:

Works well and provides a peace of mind, as just don’t worry about someone just coming and taking either of our trailers.


Comments
Works like a champ!
Pat - 04/20/2022


by:

It seems like the affordable option to protect a trailer. It is made of aluminum so it could be cut off, but it would probably be faster to grind through the steel shackle of the padlock that secures it.

I used this hitch protector, a chain to a post, and a chain around a wheel and the frame of my utility trailer with three matching locks from etrailor.

I think that those three deterrents will slow thieves down. Make sure that your trailer coupler is secured to the trailer itself. I spot welded my trailer coupler in place.

There is only so much you can do. This deterrent is effective for its price point.


Comments
Still working great after a year. It is a solid deterrent for the price point!
Phillip G - 05/10/2021


by:

Best trailer lock on the market




by:

Very pleased with the ease of use for this trailer lock. It is the only style that will fit on my square receiver! Light weight yet sturdy! Very fast shipping. (Lock sold separately)




by:

This is a good lock. Easy to use, easy for a potential thief to see and difficult to break. I would buy this again. Shawn Dahl




by:

My trailer is stored in an outside site. While nothing is totally theft-proof this product is heavy and seems well made. It fits my large-flanged Jayco coupler. I bought a good weather resistant heavy lock to go with it. Rather than mess with my trailer I think this will encourage someone to move on to easier pickings. I'm very happy with this purchase.


Comments
One year later and I’m still very pleased with this purchase.
Hector - 12/07/2018


by:

Big Clunky piece of metal, I guess it is supposed to look like a strong deterant. The way the top locking bar barely fits over the Demco hump, it looks like one smack with a hammer and it would pop right off. I guess its supposed to scare criminals away instead of preventing them from stealing your trailer and whats in/on it.




by:

Perfect and secure




by:

Well engineered!




by:

Super Duty Trailer Lock. Just looking at it should deter theft. I have owned for one year and my trailer is safe and sound. I would definitely buy again.




by:

They have worked great, being a new user to these locks I didn’t know how well they would work. Once we got them and put them on our trailers I was very impressed. I would definitely buy these locks again if we need more.




by:

Order was exactly what I needed. A+++




by:

It works good. We powdercoated it to stop corrosion. Not much else to say




by:

I have used this product for 12 years on trailers to tow bars on SUVs and ordered two more. This is more practical for me because it can take a Combination hasp lock instead of a key like all other coupler locks, which I never seem to have handy. etrailer was very prompt on shipment of all the products I have ordered from them. Good products, excellent service.


Comments
Still great - practical, worthwhile product
KAK - 10/28/2015


by:

Really like this product well built and allows us to integrate our Master key Lock system with this trailer lock. We have a Small business and several trailers at home. Finding the right key to the trailer lock was always a problem;now that problem is gone. I am a happy customer!


Comments
I have been very happy with my experience with etrailer.com. Great ion, Good Reviews, Good Prices, Good Product info, Great shipping and customer service. Also, a lot of the items are hard to find, its nice to have a one stop shop.
Trevor - 04/05/2018


by:

It works great on the new OTW trailer.




by:

This is the only trailer coupler lock I use. It fits all trailers and is extremely secure. I feel safe knowing my trailer will be there when I come back for it.


Comments
It’s working so well that I bought another lock
Joshua - 03/12/2020

25
670
Show More Reviews

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



  • Does the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 being Made of Aluminum Still Deter Theft
    While aluminum is a softer metal than steel it still would be difficult enough to cut through, making the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 an effective theft deterrent. If a thief came across your setup and was willing to cut through an aluminum lock he probably would not be any more deterred if the if he saw that the lock was made out of steel.
    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...
    Image 1 for
  • Difference Between Blaylock TL-20 and TL-33 Coupler Locks
    Sure thing! The EZ Lock Trailer Coupler Lock # BLTL-20 is for Bulldog Collar-Lok-style couplers while the EZ Lock Trailer Coupler Lock # BLTL-33 is designed for Fulton, Shelby, Dutton-Lainson, Atwood, and similar couplers. I've attached some review videos for you to check out.
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  • 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...
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  • Coupler Lock Recommendation for a Bulldog Collar Lok Coupler
    The 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...
  • 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...
    Image 1 for
  • 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 a hitch...
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    Image 1 for
  • Coupler Lock for a UFP A-60 Boat Trailer Actuating Coupler
    From what I was able to find in the research I did, the recommended lock for a UFP A-60 coupler is a simple pin design, # e98888. This should prevent the handle from operating while the lock is in place (basically used in place of the pin. The difference is that this pin includes a lock). In my research I found that locks like # BLTL-33 are not considered a fit.
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  • Will BlayLock part # BLTL-33 Fit Bulldog Cast Wedge Latch Coupler
    We have test fit the BlayLock part # BLTL-33 on a Wedge Latch Style Bulldog Coupler like the part # BD4425000317 and we found that the lock did fit and work well.
    view full answer...
  • Parts Needed for Keyed Alike Lunette Ring, Gooseneck Coupler, and Hitch Ball Coupler Locks
    To add locks to your trailers that have the Lunette Ring Couplers (which connect to pintle hitch receivers) you will want to use 2 of part # BLTL-60. For your gooseneck hitches you will want to use 2 of part # BLTL-50 for Bulldog/Stallion/Superior/T.E.M. Gooseneck Couplers or part # BLTL-55 for RAM Gooseneck Couplers. To lock the set screw you will want the Blaylock EZ Lock Set Screw Lock on Gooseneck Coupler # BLTL-51. For the traditional trailer hitch ball couplers you will want to...
    view full answer...
  • Will the Master Lock Hidden Shackle Padlock fit a Blaylock EZ Lock Trailer Coupler Lock # BLTL-33
    Yes the Master Lock Stainless Steel Padlock # ML40D is compatible with the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33. I attached a picture that shows both of these products used together.
    view full answer...
    Image 1 for
  • Maximum Padlock Shackle Diameter to Fit Blaylock EZ Lock Coupler Lock BLTL-33
    The Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 can be used with a padlock shank that is no thicker than 3/8 of an inch so your padlock with a 14 mm (0.55 inches) shank is too big to fit through the hole on the pin. We do have the Master Lock Stainless Steel Padlock # ML40D which has that 3/8 of an inch diameter shank and is a very popular option to pair up with the BLTL-33.
    view full answer...
  • Max Shackle Diameter for Locking the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33
    That is correct. If you check out the attached picture of the Master Lock Stainless Steel Padlock # ML40D (3/8" shackle) installed on the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 you can see that there is no extra space for a larger size shackle.
    view full answer...
  • Master Lock Padlock to Work With Blaylock EZ Lock Trailer Coupler
    The Master Lock 970DPF will not work with the Blaylock EZ Lock Trailer Coupler # BLTL-33; instead you would want to use the Master Lock Padlock # ML40D.
    view full answer...
    Image 1 for
  • Recommended Adjustable Coupler Lock for Tight Fit
    The Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum # BLTL-33 isn't necessarily designed for a tight fit. It is designed to give you a couple different pin location options but the latch is really all that keeps it in place tightly as the pin just prevents removal. If you want a tighter lock, I recommend the Fastway Universal Trailer Coupler Lock for 1-7/8", 2" and 2-5/16" Couplers # DT25013KA which allows for many adjustment points for a precise...
    view full answer...
    Image 1 for
  • Blaylock EZ Trailer Coupler Lock Compatibility with Fulton Coupler
    The Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum # BLTL-33 is a great option for Fulton Couplers. It will fit your Fulton model 44125C well. It is designed to use the Master Lock Stainless Steel Padlock with Shielded Shackle - 3/8" Diameter Shackle # ML40D.
    view full answer...
  • Tow Smart Trailer Coupler Lock Place of Manufacture
    The Tow Smart # 3481213 is manufactured in China. If you're looking for a similar lock that's manufactured here in the US, I'd recommend theBlaylock # BLTL-33. For a compatible padlock, I'd recommend the # ML40D from Master Lock. I've linked to a product demonstration video featuring the Blalock EZ Lock Coupler Lock.
    view full answer...
  • Coupler Lock for Atwood 2-Inch A-Frame Coupler
    The 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...
  • Replacement Clevis Pin Recommendation for a Blaylock EZ Lock Trailer Coupler Lock
    Yes, you would want a Replacement Clevis Pin # BL040CPIN-TL3350. This is the replacement pin for the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 that you referenced.
    view full answer...
    Image 1 for
  • 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...
  • Can Puck Lock Be Used with Blaylock EZ Lock Trailer Coupler Lock # BLTL-33
    The Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 is designed to work perfectly with a standard padlock, but I think the typical opening size on the back of a puck lock will be a bit too small to fit over the end of its pin/shank. The pin/shank on this lock has a 3/4" diameter, while for example the opening on the Master Lock Puck Lock # ML6271 we have available has a height of just 19/32", which wouldn't allow it to mount over the pin. Your best option is going to be with something...
    view full answer...
  • 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...
  • Will The Blaylock EZ Coupler Lock Work With A Demco EZ Latch Coupler.
    I have a solution for you. The Blaylock EZ Lock Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers - Aluminum # BLTL-33 will not work with the Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Black - 2-5/16" Ball - 21K # DM14040-81. You will need a coupler lock like etrailer Surge Brake Coupler Lock - 3-3/8" Span - 1/4" Diameter - Chrome # e98888. This can be used while coupled to a trailer or while off vehicle.
    view full answer...
  • Can Blaylock EZ Lock Trailer Coupler Lock Fit Demco Channel Style Coupler # DM13203-95
    Yes, the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 that you referenced does fit the Demco Channel Tongue Trailer Coupler # DM13203-95 that you referenced. The max diameter shackle you could fit through the hole on the 3/4 inch long pin is 3/8 of an inch like what the Master Lock Stainless Steel Padlock # ML40D has.
    view full answer...


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