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  1. Trailer Tongue Lock
  2. InfiniteRule
  3. Fits 2 Inch Ball
  4. Fits 2-5/16 Inch Ball
  5. Latch Lock
  6. Keyed Unique
InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers - 2" and 2-5/16"
InfiniteRule

InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers - 2" and 2-5/16"

Part Number: IR66FR
In Stock
$58.45
Retail:$73.54
You Save: 21%
Trailer Tongue Lock
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Heavy-duty, stainless steel lock provides superior security when locking your cast Demco eZ-Latch trailer coupler or gooseneck coupler ball. Third-party-tested pin has a 42,000-lb shear strength. Great Prices for the best trailer tongue lock from InfiniteRule. InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers - 2" and 2-5/16" part number IR66FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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InfiniteRule Trailer Tongue Lock - IR66FR

Highlights

  • Superior security: Heavy-duty stainless steel offers 42,000-lb shear strength.
  • Universal fit: Designed for 2" and 2-5/16" Demco eZ-Latch trailer couplers.
  • Weather-resistant: O-ring and dust cap protect internal components from elements.
  • Easy to use: Internal turn key locking mechanism simplifies application.
  • Made in the USA: Meticulously crafted with a focus on durability and reliability.
  • 1-year warranty: Provides peace of mind for your towing and off-road needs.

Features to know about

Unyielding Security with Shear Strength: 42,000 lbs Shear Durability

When it comes to securing your trailer, strength is non-negotiable. The InfiniteRule Lock boasts an impressive shear strength of 42,000 lbs, providing superior security for your cast Demco eZ-Latch trailer coupler or gooseneck coupler ball. This means peace of mind knowing your trailer will remain safe and secure, whether parked or on the move. The key to what makes it such a reliable lock is the third-party-tested pin that can withstand stress, helping you keep your focus on the road ahead.

Effortless Trailer Compatibility: Universal Application

Dreary compatibility issues are a thing of the past with the InfiniteRule Lock. Specially designed to fit both 2-inch and 2-5/16-inch Demco eZ-Latch couplers, this lock ensures you can count on it for various trailer setups. From utility trailers to car dollies, just install it and get ready to roll. It’s as versatile as your towing escapades and ensures you're always prepared for whatever trailer is hitched brand new or well-loved.

Built to Brave the Elements: Stainless Steel Construction

No matter the weather, your lock must endure. Thanks to its heavy-duty stainless steel construction, the InfiniteRule Lock is engineered for durability and longevity. It’s the steadfast companion you need, immune to rust and wear, ready to withstand challenging outdoor conditions. Its design also includes an O-ring for superior protection against dirt and grime, and a weather-resistant, tethered dust cap to ward off water and debris from the keyway.

Freedom to Tow: With Lock Installed

Enjoy the freedom of towing with the InfiniteRule Lock securely fastened. Whether you're using it on a 2-inch or 2-5/16-inch ball mount, it fits your Demco eZ-Latch perfectly without hindering your towing capacity. It's more than just a stationary lock – it provides seamless integration with your towing needs, giving you the green light for both static and dynamic use situations.

Efficiently Designed for Easy Use: Internal Turn Key Locking Mechanism

With its innovative internal turn key locking mechanism, saying goodbye to fiddly, cumbersome locks is now possible. This feature allows for quick, fuss-free access with every use. It’s particularly appreciated for its user-friendly operation, keeping the setup or removal process smooth and straightforward. Designed for practicality, it makes securing your trailer a breeze.

Exceptional Quality, Proudly Made in the USA

Experience craftsmanship that echoes dedication and precision with each component of the InfiniteRule Lock. Proudly manufactured in the USA, it's rigorously inspected to meet the highest standards of durability and reliability. Rest assured, it’s backed by a commitment to ensure all your trailer and towing needs are comprehensively secured.

Specs

Application

  • Application: cast Demco eZ-Latch trailer coupler for a 2" or 2-5/16" ball or a gooseneck coupler ball

Strength

  • Shear strength: 42,000 lbs

Pin Dimensions

  • Overall length: 4-3/8"
  • Diameter: 1/4"
  • Inside pin length (span): 2-15/16"

Warranty

  • 1-Year warranty

Note

This lock will only work with Demco EZ Latch couplers that are cast and not stamped.

61130-D Infinite Rule Security, Inc. Lock - Stainless Steel Trailer Tongue Latch Lock - 1/4" x 2-5/16" Span

Replaces IR56FR (61121-D)





Customer Satisfaction Score:

Ratings & Reviews

4.7

125 reviews
Heavy-duty, stainless steel lock provides superior security when locking your cast Demco eZ-Latch trailer coupler or gooseneck coupler ball. Third-party-tested pin has a 42,000-lb shear strength.

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exceptional service from Stacey A.



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Should work built tough fits good



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Excellent quality and a perfect fit.



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Exactly as advertised. Good quality.



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Quality is incredible. Thanks for the fast deliver.


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See what our Experts say about this InfiniteRule 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.
    view full answer...
  • How Can I Secure My Kar Kaddy From a Thief Stealing it While it is Attached to RV & While Storing?
    Hello David, Those are very valid concerns, especially in the world we live in today. I have 2 different locks for you to keep those "sticky bandits" away: 1st lock is the InfiniteRule Lock for Demco eZ-Latch Trailer Couplers - 2" and 2-5/16" # IR66FR, this lock is great for keeping the Kar Kaddy attached to the ball. You can also use the lock while it is disengaged but will probably not deter the seasoned "treasure hunter." 2nd lock let's go a step above, or better yet all the way to...
    view full answer...
  • Coupler Lock Recommendation For Demco Channel Tongue Trailer Coupler DM15945
    Hello John. The InfiniteRule Lock # IR66FR is the best lock option for the Demco Channel Tongue Trailer Coupler # DM15945. This lock was made specifically for the Demco eZ-Latch couplers, so it will work great for you. To answer your second question, there is no hitch pin lock that can be keyed to match this lock, so you would have to keep two different sets of keys.
    view full answer...
  • Recommended Lock for MORryde GooseTech 5th Wheel to Gooseneck Pin Box
    Hey Jeff! The MORryde GooseTech 5th Wheel to Gooseneck Pin Box # MR97MV comes with a Demco eZ-Latch. The best option for a lock is the InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers # IR66FR. This is designed to for a standard coupler but fits the GooseTech as well. Are you replacing a 1621 on your 5th wheel?
    view full answer...
  • What Size Lock Works w/ the Cast Trailer Coupler e88FV?
    Hey Jamie. The Cast Trailer Coupler item # e88FV uses a 5/16" pin to secure it so it requires a 1/4" pin diameter lock like the InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers item # IR66FR. The fixed locking point on the coupler may need to be slightly drilled out to widen it. What kind of trailer do you have?
    view full answer...
  • Will MORryde GooseTech Have Clearance Issues With Bed Rails
    Hey Travis! You won't have any issues with vertical clearance using the MORryde GooseTech # MR27MV. The only clearance issues you might run into is if your 2017 Ford F-350 is the short bed. If you have the long bed this is going to be a really nice upgrade for your setup. You will also need safety chains # GY49GR and if you want a lock for added security you can use the # IR66FR. I'm assuming you already identified your pin box and it has a Lippert 1116 bolt pattern. What kind of 5th...
    view full answer...
  • Recommended Lock for the Demco eZ-Latch Gooseneck Coupler Adapter
    Hey Connor, there is no integrated lock for the Demco eZ-Latch Gooseneck Coupler # DM73KV but you can use the InfiniteRule Lock for Demco eZ-Latch Trailer Couplers # IR66FR to lock it, no Gooseneck coupler lock necessary. What kind of trailer do you have? If you have any other questions, please feel free to drop a comment and let me know!
    view full answer...
  • Does InfiniteRule Lock Fit Demco EZ Latch Coupler
    Hey Joe, thanks for the picture of your coupler! From seeing that I can tell you that the InfiniteRule Lock part # IR66FR that you referenced is a fit for the style of Demco EZ Latch coupler that you have. How do you like the coupler?
    view full answer...
  • Can the InfiniteRule Lock for Demco eZ-Latch Trailer Couplers Be Keyed Alike?
    Hey Oliver, welcome back. The InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers item # IR66FR can not be keyed alike. To get multiple locks keyed alike that are compatible with the Demco EZ-Latch like item # 12660-97SP, you'll need to go with our etrailer Surge Brake Coupler Lock item # e98887 for a 2-1/2" span or item # e39PR for a 2-3/4" span. Please note that you will need to purchase the locks at the same time and select the "keyed alike" option from the drop down above...
    view full answer...
  • Lock for Demco Hydraulic Brake Actuator
    Hi Frank; I'm sorry to say the # IR66FR is not compatible with your Demco Hydraulic Brake Actuator # DM72VR since it is stamped and not cast. For whatever reason they don't have a different version for that Demco coupler style. You will have to stick with a standard pin lock like # e98888 or get a surround lock like the BulletProof Hitches Extreme Duty Coupler Lock # BPH96VR. I like the surround style since it takes more work for your average thief to defeat it. What kind of trailer do...
    view full answer...
  • Coupler Lock that Fits Head of Demco EZ Latch Actuator DA75
    Hey Michael, we actually have a coupler lock from InfiniteRule that was designed to fit the cast heads of the Demco DA75 actuators like the part # DM33CV with the part # IR66FR. This is the correct length pin to fit the head of the DA75 and prevent the latch from being opened. This also will allow you to lock the coupler to your hitch ball when parked as well.
    view full answer...
  • 2014 T@G Trailer A-Frame Coupler Replacement for Easy Use
    Hey Mike, thanks for reaching out! I mean you can technically install the Curt QuickPin No-Latch Trailer Coupler # C22CR on an A-Frame but you're looking at some pretty heavy modifications and you'll need to hire out a professional welder for this too. For something easier than the standard coupler you currently have, I recommend going with the Demco eZ-Latch # DM14793-81 instead. This is just easier to use altogether, and it can be bolted or welded on to your trailer frame depending...
    view full answer...
  • Can Lock Be Added To Prevent Theft Of Shocker Gooseneck Hitch Coupler?
    Great question! Very smart to lock nice equipment like this. The Shocker Gooseneck Hitch Round # SHK56YR has a built-in spring-loaded Demco eZ-Latch, which works great with most gooseneck locks like the InfiniteRule # IR66FR . If you’re parking in public lots or doing overnight hauls, a coupler lock is a must. What trailer are you planning to install this hitch on?
    view full answer...
  • Lock for Demco EZ Latch Coupler # DM114041-8
    Hey Alan, yes we do have locks for the Demco EZ latch coupler # DM14040-81 that you referenced with the InfiniteRule Lock part # IR66FR.
    view full answer...
  • Will the Master Lock Trailer Coupler Lock ML389DAT DEMCO EZ Latch 2-5/16 Ball & Gooseneck Coupler?
    Yes, and no but I have one that'll do both. The Master Lock Trailer Coupler Lock item # ML389DAT you were looking at will fit a Demco A-Frame Coupler with EZ Latch item # 12660-97SP but not gooseneck couplers. For a coupler lock that does both you'll need the InfiniteRule Lock for Demco eZ-Latch Trailer Couplers item # IR66FR.
    view full answer...
  • Recommended Lock For A Demco 2-5/16" EZ Latch Coupler
    You certainly can use the Trimax Coupler lock # TMX47FR with the Demco 2-5/16" Ez latch coupler like the # DM14040-81. The Demco coupler is 2-7/8" wide on the outside so it will undoubtedly fit with the Trimax lock, which is more or less universal. That being said, if you need a lock for the Demco EZ latch, I recommend the InfiniteRule Lock # IR66FR which is made specifically for the 2-5/16" Demco EZ Latch couplers so it will be a perfect fit.
    view full answer...
  • Will The InfiniteRule Lock for Demco eZ-Latch # IR56FR Fit Both 2 and 2-5/16 Couplers?
    The InfiniteRule Lock for Demco eZ-Latch # IR66FR will fit 2" and 2-5/16" couplers. This lock has an internal length of 2-15/16" to fit the pin hole on your coupler. I have linked an image below showing it on a 2-5/16" coupler in our shop.
    view full answer...
    Image 1 for
  • Pin Lock For Demco Cast Head Coupler DM37ZR
    There is indeed a pin lock for the Demco Cast Head Coupler w/ Jack Hole - eZ-Latch - 2" Ball # DM37ZR. In fact, there is one made specifically for this coupler, from InfiniteRule: - InfiniteRule Lock for Demco eZ-Latch Trailer Couplers # IR66FR Not only is this lock made for this coupler, but it is also extremely strong, with a tested shear strength of 42,000 lbs.
    view full answer...
  • Lock For Demco Trailer Coupler With eZ-Latch
    Thank you for your purchase of the Demco Channel Tongue Trailer Coupler - eZ-Latch. The diameter is 5/16" and the lock that is designed specifically for Demco couplers with the eZ-Latch is the following: - InfiniteRule Lock for Demco eZ-Latch Trailer Couplers # IR66FR
    view full answer...
  • Keyed Alike Trailer Coupler Lock for Demco EZ-Latch Coupler System
    Thanks for reaching out, Tripp! To get multiple locks keyed alike that are compatible with the Demco EZ-Latch you'll need to go with our etrailer Surge Brake Coupler Lock # e98888 - just be sure to choose the "keyed alike" option from the drop down menu prior to placing your order. The InfiniteRule Lock for Demco EZ-Latch Trailer Couplers # IR66FR you were looking at is keyed unique so we don't have a way to get that specific lock keyed alike for you.
    view full answer...
  • Can I Tow w/ the InfiniteRule Lock for Demco eZ-Latch Trailer Couplers IR66FR Installed?
    Yes, you can so long as your Demco EZ latch coupler is cast like item # DM14040-81 or item # DM37ZR. The InfiniteRule Lock for Demco eZ-Latch Trailer Couplers item # IR66FR works great with these couplers whether they're being towed or parked.
    view full answer...
  • Coupler Latch Lock For a Utility Trailer With 2 Ball Coupler
    If you have the new style Demco eZ-Latch coupler I recommend using the Lock # IR66FR. Otherwise you will be able to use the Lock # 2847DAT to secure the coupler latch. Both of these latches are constructed of stainless steel so they are okay to be exposed to the elements. If you are looking for a storage lock I recommend the Fastway # FA86-0015-316.
    view full answer...
  • Latch Lock For eZ-Latch Demco Channel Tongue Trailer Coupler DM15629-52
    What you need is the following in order to lock the Demco Channel Tongue Trailer Coupler - eZ-Latch - Silver - 2" Ball - Weld On - 10,000 lbs # DM15629-52: - InfiniteRule Lock for Demco eZ-Latch Trailer Couplers # IR66FR This lock was designed specifically to fit the eZ-Latch couplers so it'll work perfectly for you.
    view full answer...
  • Locks For a Master Tow Car Dolly With 2" Ball Demco Coupler
    Based on information I could find on the Master Tow car dollies I see they use a 2" coupler like our # CT-5003-Z. For this I recommend getting the Master Lock Set # 3794DAT which will provide you with a coupler lock, storage lock and receiver lock all keyed alike. The InfiniteRule Lock # IR66FR you found is a great lock but is for their EZ Latch Coupler # 12564 if this is what you have.
    view full answer...


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Michael B
Installed by:
Michael B
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Sabrina W
Written by:
Sabrina W

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