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CURT 23081 Powder-Coated Aluminum Trailer Tongue Lock, 2-5/16-Inch Couplers

4.3 4.3 out of 5 stars 679 ratings

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Brand CURT
Item Weight 1.4 Pounds
Vehicle Service Type Marine-Personal-Craft, Trailer
Material Aluminum
Finish Type Powder Coated

About this item

  • DEPENDABLE SECURITY. To help protect your trailer from theft, this trailer lock fits over the trailer tongue and is designed to prevent a trailer ball from being inserted into the trailer coupler
  • EASY TO OPERATE. This trailer tongue lock has a sleek, subtle look to deter theft, and uses a simple 1/4-turn lock activation for convenient locking and unlocking as needed
  • VERSATILE. With a standardized channel, this trailer coupler lock fits most 2-5/16-inch and some 2-inch flat and rolled-lip trailer couplers (check dimensions)
  • WEATHER-RESISTANT. This trailer tongue lock is protected from the elements with its highly corrosion-resistant aluminum construction. It also features a grey powder coat finish for maximum corrosion prevention
  • TWO KEYS INCLUDED. For your convenience, two keys are included with this trailer tongue lock. You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access
See more product details

From the manufacturer

CURT Towing Accessories

Wherever your work or play takes you

CURT offers custom trailer hitches, electrical products and a complete line of towing accessories to get you there with confidence and enjoy every mile of the journey.

CURT Trailer Hitches Camper RV Jeep Towing

Towing accessories to fit your lifestyle

Hitches, trailer wiring, cargo carriers and more!

CURT offers a complete line of towing accessories to let you fully enjoy your passion!

With everything from custom trailer hitches and trailer wiring to 5th wheel hitches and cargo carriers, we have the towing equipment you need to make the most of each adventure.

Whether you're working, playing or doing a little of both, CURT towing products enable you and your crew to make memories that will last a lifetime.

A complete line of towing products

  • Trailer hitches
  • 5th wheel hitches
  • Gooseneck hitches
  • Towing electrical
  • Towing accessories
  • Weight distribution
  • Trailer parts and accessories
  • Cargo management

Basic towing components

CURT Trailer Hitch Towing Accessories Ball Mount

CURT Custom Trailer Wiring Harness Hitch Receiver

CURT Ball Hitch Mount Towing Accessories

CURT Hitch Cargo Carrier Cargo Net

Custom hitches

A trailer hitch receiver is the starting point for most people looking to tow with their vehicle. CURT offers over 1,000 different custom hitch models to provide a perfect, factory-like fit on most vehicles on the road today. Our custom hitches provide a standard hitch receiver to mount a variety of towing accessories.

Vehicle-trailer wiring

The next step in equipping your vehicle for towing is to add a trailer wiring harness. Like our hitches, CURT custom wiring is made vehicle-specific for each make and model. Virtually all of our custom vehicle-trailer wiring harnesses install using existing factory connectors on the vehicle for a plug-and-play connection. No splicing necessary!

Ball mounts

With a custom trailer hitch receiver installed on your vehicle, a variety of ball mount options can be installed as needed. We offer loaded ball mounts with a trailer ball already torqued in place, as well as adjustable ball mounts, multi-ball mounts, tow hooks and more. A ball mount can be secured into the receiver using one of our hitch pins or hitch locks.

Cargo management

To add cargo space to your vehicle, CURT offers a number of cargo management accessories. Our cargo carriers are available in a convenient, use-as-needed hitch-mounted design, as well as a roof rack option. We also offer bike racks, cargo bags, cargo nets and ratchet straps for additional item security.

Heavy-duty towing equipment

CURT 5th Wheel Hitch Truck Bed Towing

CURT Gooseneck Hitch OEM Puck System Truck Bed

CURT Echo Mobile Electric Trailer Brake Controller Smartphone

5th wheel hitches

For heavy-duty towing of an RV or travel trailer with your pickup truck, CURT has a wide array of 5th wheel hitch options. 5th wheel hitches are available in capacities up to 25,000 lbs. and in various series, each with own unique set of features and benefits. To install a 5th wheel hitch in your pickup truck bed, CURT offers traditional 5th wheel rails and brackets, as well as puck system options and gooseneck adapters.

Gooseneck hitches

For towing heavy-duty trailers around the farm or out to the construction site, CURT gooseneck hitches are a highly dependable extension of your truck. We offer puck system gooseneck hitch kits to accommodate trucks with the factory towing prep package. We also offer original-equipment-style gooseneck hitches for select applications, as well as traditional gooseneck hitches and brackets, such as our original Double Lock.

Trailer brake controllers

CURT offers several different electrical trailer brake controller options to perfectly suit your towing setup and lifestyle. Our Echo mobile trailer brake controller is particularly unique, featuring a Bluetooth connection that links to your smartphone and provides highly responsive braking with your Apple or Android device as the interface. It easily plugs in with no tools or extra wires needed. We also offer our factory-like Spectrum and traditional TriFlex.

Specialized towing accessories

CURT Trailer Hitch Adjustable Channel Mount

CURT Weight Distribution Hitch Trailer Sway Control

CURT Pintle Hitch Mount Lunette Ring

CURT Cargo Ratchet Straps Trailer Truck Towing

Adjustable channel mounts

To give your vehicle greater capability for towing a variety of trailers, CURT adjustable trailer hitch ball mounts provide the answer. This versatile ball hitch comes in standard hitch receiver sizes and provides flexible vertical adjustment to ensure level towing, even with large, lifted trucks and SUVs.

Weight distribution hitches

Give yourself more control over your vehicle and trailer with a CURT weight distribution hitch. This receiver hitch attachment helps level the vehicle-trailer combination for a smoother ride. Our TruTrack weight distribution hitch is particularly unique, featuring integrated trailer sway control.

Pintle hitches

These heavy-duty hitches are perfect for agriculture, construction and military towing. We offer pintle hitches, pintle hooks, ball and pintle hitch combinations, as well as channel-mount pintle hitches for an adjustable option. We also carry high-strength lunette rings for a solid connection to the trailer.

Ratchet straps

Keep your cargo fully secure in your truck bed or trailer with a set of CURT ratchet straps. These cargo tie-down straps come with heavy-duty ratcheting mechanisms and are available in wide variety of capacities, lengths, hook types and colors.

Product Description

Sometimes a safety pin and coupler latch are just not enough to keep your toys safe. While CURT safety pins and coupler latches are made to keep your coupler securely latched onto your trailer ball, they are no substitute for the locking power provided by a CURT coupler lock. CURT coupler locks are designed to add security to your trailer and towing equipment. Instead of merely retaining the coupler latch mechanism, this special coupler lock is actually designed to protect your trailer from theft when it is not hitched up to your vehicle. It features a strong aluminum body that fits most 2-5/16" and some 2" flat or rolled-lip coupler and prevents a trailer ball from being inserted. This CURT coupler lock is key-operated and comes with a grey powder coat finish. All CURT coupler locks include two keys in every package. Protect your boat, your camper and even your utility trailer the right way with a CURT coupler lock.Features: Rust Resistant

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

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CURT 23081 Powder-Coated Aluminum Trailer Tongue Lock, 2-5/16-Inch Couplers


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What's in the box

  • Trailer Coupler Lock
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.3 out of 5 stars
    4.3 out of 5
    679 global ratings

    Customers say

    Customers like the performance and ease of use of the tow hitch. For example, they mention it works great, is easy to install and remove, and attaches to the hitch easily. That said, opinions are mixed on quality, fit, and material.

    AI-generated from the text of customer reviews

    36 customers mention28 positive8 negative

    Customers like the performance of the tow hitch. They say it works great, is an excellent product for the money, and is a great product.

    "It's a good value for the price imo...." Read more

    "The Curt couple lock is very easy to use. The price is right and I’ve bought one for all of my trailers. It’s a great product for the money." Read more

    "...It wasn't worth returning them because they are functional and I like the design, however, more care should be taken to deliver a product that has..." Read more

    "...my 1972 airstream per the description on the ad and either way it did not work I've ordered 2 different hitch locks for a 2 5/16 and neither worked." Read more

    20 customers mention20 positive0 negative

    Customers find the tow hitch easy to use. They mention it's easy to put on, install, and remove. The lock is easy to look and unlock, and it works well. Some say that it hooks up quickly.

    "The Curt couple lock is very easy to use. The price is right and I’ve bought one for all of my trailers. It’s a great product for the money." Read more

    "...Needless to say, I returned it for this one. It's easy to attach to the hitch...." Read more

    "Visible security deterrent that's very easy to use. Make my trailer less of a target when parked unattended." Read more

    "I liked it. It does what it says, is easy to put on. If someone tried to remove it without a key they would make the hitch unusable." Read more

    4 customers mention4 positive0 negative

    Customers are satisfied with the appearance of the tow hitch. They mention that it has a great appearance.

    "Excellent look. Fit a 2 5/16 hitch on my camper perfectly...." Read more

    "The product appears to be well designed and should maintain its pleasing appearance over time. It provides great security without a bulky look." Read more

    "Much nicer design that the others I looked at." Read more

    "Looks fine for the correct trailer hitch...." Read more

    47 customers mention31 positive16 negative

    Customers are mixed about the quality of the tow hitch. Some mention that it's a nice sturdy lock at an affordable price, while others say that it isn't the beefiest lock and isn’t user friendly.

    "Very well made" Read more

    "...reviews for the many tongue lock styles out there, this one looks to be a solid choice and a better option than many of the other kinds out there...." Read more

    "...cut down in the center to about a 1/4" diameter, so it's not nearly as strong as it looks...." Read more

    "This is a nice sturdy lock at an affordable price. I purchased one from Gander Outdoors and ended up paying $8 more for another brand...." Read more

    32 customers mention11 positive21 negative

    Customers are mixed about the fit of the tow hitch. Some mention it fits perfectly with only a little slack in the fit, while others say it doesn't fit their 2-5/16-inch, travel trailer, or other trailers. It was slightly big on their 2" hitch on a smaller trailer, but would have functioned. Some say it was way too wide for a regular camper ball hitch and that it feels a bit loose on their hitch, but it doesn’t come off.

    "...Forest River Surveyor 2 & 5/16 coupler just fine, but I wish it was a little tighter." Read more

    "...It fits perfectly with only a little slack in the fit...." Read more

    "It will not fit my trailer hitch. I need to send it back." Read more

    "Works but not as snug as I would prefer." Read more

    6 customers mention3 positive3 negative

    Customers have mixed opinions about the material of the tow hitch. Some mention that the body material is aluminum, while others say that the metal seems cheap and super thin. Some say that it's ok on standard hitches, but not the cast iron style hitches.

    "Item is aluminum, not sure all that secure. I cannot find out as it will not fit on my travel trailer...." Read more

    "...Would be ok on standard hitches, but not the cast iron style hitches." Read more

    "...This one fit great!It's aluminum, light and sturdy." Read more

    "...Metal seems cheap and super thin . Returned it the next day" Read more

    5 customers mention0 positive5 negative

    Customers are dissatisfied with the durability of the tow hitch. They mention that it falls off easily and does not work at all.

    "...lock and coupler and is playing with the locked system and it falls off the coupler...." Read more

    "...all you have to do is twist the lock down and forward and it pops right off, no problem...." Read more

    "...This one just falls off when I try to attach it to my trailer. Buyer be ware.It will not work." Read more

    "Useless. It just falls off the tounge of my normal modern factory built trailer, even when it's locked...." Read more

    It fits a wide cup!
    5 Stars
    It fits a wide cup!
    The first lock I ordered was not wide enough to fit the ball receiver on a Carson trailer. The first was a Gorilla but was just too shallow to seat and allow the pin to riseThis one fit great!It's aluminum, light and sturdy.
    Thank you for your feedback
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    Top reviews from the United States

    Reviewed in the United States on February 22, 2024
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    Reviewed in the United States on August 27, 2018
    One person found this helpful
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    Reviewed in the United States on February 7, 2024
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    1.0 out of 5 stars Lock free spinning
    Reviewed in the United States on February 7, 2024
    I used this product for about 5 weeks. I use my trailer 3-4 times a weeks so 1-3 times a weeks I would put the trailer lock on when not using. It was on there for around 48 hours in the lock position and would free spin. I tapped with my fingers, wiggled, sprayed WD40 then hit with my palm while still trying to lock and unlock. Finally I was tapping with a hammer and I have people waiting on me burning a hole in my pocket. I had to cut the lock after about 30 minutes of really working at getting this fixed.
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    Reviewed in the United States on May 29, 2022
    Reviewed in the United States on June 26, 2022
    One person found this helpful
    Report
    Reviewed in the United States on April 8, 2023

    Top reviews from other countries

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    Stéphan C.
    3.0 out of 5 stars Un peu léger à mon goût
    Reviewed in Canada on March 26, 2023
    Andrew
    1.0 out of 5 stars DONT WASTE YOUR MONEY!
    Reviewed in Canada on June 4, 2019
    One person found this helpful
    Report