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  1. Trailer Tongue Lock
  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 Industries

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

Part Number: BLTL-33-40D
$82.20
Trailer Tongue Lock
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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-, latch-, or handwheel-style coupler. Includes stainless steel padlock. Great Prices for the best trailer tongue lock 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 1-800-940-8924 for expert service.
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  • Reviews (680)
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Blaylock Industries Trailer Tongue Lock - BLTL-33-40D

  • Fits 1-7/8 Inch Ball
  • Fits 2 Inch Ball
  • Fits 2-5/16 Inch Ball
  • Surround Lock
  • Keyed Unique
  • Aluminum
  • 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-, 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
  • 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





Customer Satisfaction Score:


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:  4.7 out of 5 stars   (680 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.

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See what our Experts say about this Blaylock Industries Trailer Tongue Lock

  • What Coupler Lock Is Recommended For The Demco EZ-Latch Coupler On A Big Tex 30SA Trailer
    Hello Brett, thanks for reaching out. For you I recommend the InfiniteRule Coupler Lock # IR66FR. This lock is made specifically for the Demco EZ-Latch couplers, and it will work with both the 2" and 2-5/16" ball couplers. It has a 42,000 lb shear strength so it is a good strong effective lock.
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  • 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...
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  • Looking For A Lock For A Trailer With A Bulldog Coupler
    Hello Rane, thanks for reaching out. Does your trailer have one of the Bulldog collar lock style couplers like part # BD028243? If so, I recommend the Blaylock Total-Encasement Coupler Lock since it is made specifically for the collar lock style couplers. You can use part # BLTL-22 for a 2" ball and part # BLTL-23 for a 2-5/16" ball. If you have just a standard lipped coupler, I recommend the Blaylock EZ Lock Trailer Coupler Lock # BLTL-33-40D which will work with 1-7/8", 2", and 2-5/16"...
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  • Recommended Lock for a Demco EZ Latch Coupler
    For the Demco EZ Latch Coupler like item # DM37ZR that does not have a lip around it you would want the Fastway Universal Trailer Coupler Lock item # DT25013KA. This is by far the best and most compatible option of the ones you listed. If you have more than one coupler you are needing a lock for you can select keyed alike and order as many locks as you need and they will all be controlled by the same key. I have linked a review video below.
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    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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  • 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...
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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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  • Best Coupler Lock For Titan Model 10 Coupler for 2-5/16 Hitch Ball
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  • 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...
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  • Is the Blaylock EZ Lock Trailer Coupler Lock Only Used When the Trailer Is Uncoupled
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  • 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...
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  • 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...
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Do you have a question about this Trailer Tongue Lock?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee David L
Written by:
David L
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Hannah L
Updated by:
Hannah L
Employee Noah M
Updated by:
Noah M

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