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CURT 23518 Black Trailer Hitch Lock, 5/8-Inch Pin Diameter, Fits 2-Inch Receiver

4.5 4.5 out of 5 stars 16,618 ratings

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About this item

  • DEPENDABLE SECURITY. To protect your trailer and trailer hitch ball mount from theft, this locking hitch pin is made with high-strength steel construction
  • EASY TO OPERATE. The barbell-style locking hitch pin promotes an impenetrable appearance to deter theft, and uses a simple 1/4-turn lock activation for convenient locking and unlocking as needed
  • VERSATILE. With a 5/8-inch diameter pin and 2.85 inches of usable pin length, this receiver hitch lock fits virtually any 2-inch x 2-inch hitch receiver with a 5/8-inch hole (not compatible with double-walled receiver tubes)
  • WATERTIGHT. The internal components of this hitch lock can easily be protected from the elements with the included watertight dust cap, while the entire hitch lock is shielded against corrosion with a durable powder coat finish
  • TWO KEYS INCLUDED. For your convenience, two keys are included with this trailer hitch lock. You can keep the spare key in a discrete location for emergencies or give it to a friend for helpful access
  • Watertight dust cap prevents internal corrosion
  • NOTE : Key style will vary
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CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov


From the manufacturer

CURT Trailer Hitches and Towing Accessories - Hitch Locks

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 Receiver Hitch Lock Trailer Hitch

Find a Trailer Hitch Lock from CURT

Get peace of mind on your adventure

CURT provides you with the best trailer hitch locks for your towing setup, so you and your crew can make the most of your adventure.

A trailer hitch lock quickly and easily installs into your trailer hitch receiver and acts as a locking trailer hitch pin for increased security and peace of mind.

Choose from several different sizes, styles and material options to find the best trailer hitch lock for your lifestyle!

Key features of CURT hitch locks

  • Easy, 1/4-turn lock activation
  • Multiple styles to fit your towing needs
  • Industry-standard sizes for easy installation
  • Durable, corrosion-resistant finish

Advantages of CURT trailer hitch locks

CURT Hitch Lock Installation Trailer Hitch

CURT Locking Hitch Pin Watertight Dust Cap

Trailer Hitch Lock Finish CURT

CURT Hitch Lock Two Keys Included

Fast, easy operation

Nearly all CURT trailer hitch lock styles come with quarter-turn lock activation, meaning the key only needs to be turned 90 degrees to open. This makes unlocking the hitch lock fast, easy and convenient whenever hitching up your vehicle and trailer.

Watertight dust cap

CURT hitch locks are equipped to face the outdoor elements, featuring an included dust cap that protects the internal locking mechanism. The components of the locking hitch pin are sealed off from rain water, dirt, road salt and other corrosive elements.

Enhanced corrosion resistance

To protect the locking hitch pin from the harshness of changing weather and the outdoors, CURT hitch locks come in a variety of durable finish options, including stainless steel options for maximum corrosion resistance.

Two keys included

To make your life and your towing adventure as convenient as possible, each CURT locking trailer hitch pin comes with two keys. This allows you to carry one and store the other in a safe location or give a friend equal access to your trailer hitch setup.

CURT Trailer Hitch Locks Towing Security Camping

Relax and enjoy your destination

Let CURT take care of hassle of keeping your trailer and cargo secure with a locking hitch pin.

Trailer hitch lock design options

CURT Right-Angle Trailer Hitch Lock

CURT Barbell Trailer Hitch Lock

CURT Deadbolt Trailer Hitch Lock

Right-angle hitch lock

The CURT right-angle trailer hitch lock is extremely easy to handle and operate, featuring key access on the receiver tube side of the hitch. No straining or struggling to reach the key hole from the side!

Barbell hitch lock

This classic trailer hitch lock style is sleek, subtle and highly reliable, featuring an impenetrable look and key access on the side of the receiver. This hitch lock makes a great replacement for a standard hitch pin.

Deadbolt hitch lock

The deadbolt-style trailer hitch lock mimics the design of a hitch pin but replaces the hitch clip with a heavy-duty lock. This locking hitch pin is easy to install, lock, unlock and store as needed.

Product Description

Make your tow vehicle and trailer more secure by keeping them locked up tight with a CURT hitch lock. Like a hitch pin and clip, a hitch lock is designed to insert into the fastener hole in the side of a receiver tube in order to hold a ball mount or hitch-mounted accessory in place. While a CURT hitch pin does offer sufficient strength for keeping your ball mount firmly attached, a CURT hitch lock goes one step further. CURT hitch locks allow you to lock your ball mount into your trailer hitch, deterring theft and preventing anyone from detaching your trailer at the ball mount and towing away your property without your permission. This CURT hitch lock features a barbell design and comes with a 5/8" pin diameter to fit a 2" receiver tube size (usable pin length is 2.850"; will not work with double-walled receiver tubes). CURT barbell hitch locks are comprised of a pin with two end caps and a round locking mechanism. They are key-operated and activate with a simple 1/4-turn. They also come with a watertight dust cap to keep out the elements and prevent corrosion. For the ultimate in towing security, a hitch lock and coupler lock used together will provide security at both the vehicle-side and trailer-side of your towing setup. For your boat, ATV or camper, keep your toys more secure with CURT hitch locks.

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.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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CURT 23518 Black Trailer Hitch Lock, 5/8-Inch Pin Diameter, Fits 2-Inch Receiver


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What's in the box

  • Truck Accessories;Towing/Towing Accessories;automotive-hitches
  • Looking for specific info?

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    16,618 global ratings

    Customers say

    Customers like the value and performance of the tow hitch lock. For example, they mention it's a great product at a reasonable price, and the mechanism works well. That said, some disagree on the security, fit, and ease of use.

    AI-generated from the text of customer reviews

    579 customers mention437 positive142 negative

    Customers like the quality of the tow hitch lock. They say it's well-made, sturdy, and has stood up well to Wisconsin winter. The anodizing has also held up well, and the lock seems durable and should last a long time. Some say that the black color keeps it hidden.

    "very well and nicely made should last forever" Read more

    "...hitch lock felt like it did what it was supposed to, and seemed solid the 4000 miles we logged...." Read more

    "...Good for quick pit stops but do not leave your valuables hitched overnight with any pin lock." Read more

    "...The only drawback I note is when locking it, the pin tends to roll around, and its not easy to get both hands on either side of the pin to..." Read more

    402 customers mention348 positive54 negative

    Customers like the performance of the tow hitch lock. They say that the mechanism works great, it's well made, and should last forever. Some mention that the key and lock work well.

    "very well and nicely made should last forever" Read more

    "works good" Read more

    "Works well if you aren't going to be removing and reinstalling your hitch often. Lock is difficult to operate." Read more

    "locks easy and does the job." Read more

    119 customers mention88 positive31 negative

    Customers like the value of the tow hitch lock. They say it's a great lock at a good price and gives them peace of mind that their trailer hitch ball will stay where it is.

    "Great item, as described." Read more

    "Great idea sweet for the cost. Easy to use Like it" Read more

    "...an incredibly heavy duty metal security lock and provide low level cheapo PLASTIC keys." Read more

    "...This is great! Super easy to lock/unlock and use. Great value, definitely recommend!..." Read more

    36 customers mention28 positive8 negative

    Customers find the installation of the tow hitch lock to be easy. They mention that it's sturdy, solid, and gives them comfort that it will stay secure. Some say that it works well to secure a bike rack to the hitch.

    "Definitely feels like a solid lock...." Read more

    "...It is sturdy and solid and gives me comfort that it will stay secure." Read more

    "...This 2 inch receiver & pin lock work well and is easy to take on and off when needed if done as stated above...." Read more

    "Easy to use and def does the job. It was a little difficult to get in place and locked...." Read more

    520 customers mention229 positive291 negative

    Customers are mixed about the security of the tow hitch lock. Some mention it's easy to use and the lock seems decent, while others say that it'd be hard for them to lock and operate.

    "...It is a little tricky to lock/unlock because it is cylindrical, but that made me feel it would be a little harder to get off if someone tried to...." Read more

    "...It's a good lock to stop a passerby from just pulling a regular pin...." Read more

    "It's hard to get locked, especially if the hitch is on a car and lower to the ground, the lock part wants to spin with the other half rather then..." Read more

    "Lock is fine. Just didn’t need it with the new bike rack I got that recommended the pairing." Read more

    465 customers mention146 positive319 negative

    Customers are mixed about the fit of the tow hitch lock. Some mention that it fits good and sturdy for their needs, while others say that it was too short for their hitch and had to order an extra long one.

    "Looks great but it’s too short by 1/2 inch the only solution is to step drill the receiver hole to accommodate the short shaft and let the the lock..." Read more

    "...However, can't use this on my truck because it's a little too short. I've tried and it won't lock on. The receiver is a bit too thick I guess ." Read more

    "Fits well into my Ford F-150 tow hitch." Read more

    "It would have been perfect had it not been to short to lock on the hitch, had to return and get a longer pin length, the 5/8 by 2 inch won't fit..." Read more

    272 customers mention150 positive122 negative

    Customers are mixed about the ease of use of the tow hitch lock. Some mention that it's easy enough to use, install, and take on and off. However, others say that the key is very difficult to get to and the lock wouldn't turn.

    "Really well made and easy to install." Read more

    "...When you push the lock end on, it pushes the pin out. Very hard to do by yourself...." Read more

    "easy to use" Read more

    "...Then the key wouldn't turn in the lock anymore. Doesn't work anymore no matter what you do...." Read more

    58 customers mention10 positive48 negative

    Customers are dissatisfied with the rust of the tow hitch lock. They mention that the inside of the lock rusted shut, the locking mechanism became so corroded, and it looks like dry rot. Some say that the lock is made of heavy steel and is slightly difficult to lock.

    "...Only problem is it started rusting soon after installing." Read more

    "...looked inside the ball bearing lost their spring, and there was rust on the male pin. I'll buy again but I'll coat the parts with lubricant first." Read more

    "Information misleading. MADE IN CHINA!!! I needed this or I would have sent it back. CURT should be ashamed for outsourcing and then misinformation." Read more

    "...has rubbed off where it touches the hitch tube, and it has started to rust a little." Read more

    It was too small for This particular trailer hitch
    5 Stars
    It was too small for This particular trailer hitch
    I wound up buying one bigger from Walmart that was perfect Bigger size .. which is the one in this picture not the one returned.. this review is still gets 5 star thou because the little lock does work the keys are a bit primitive cheapy cheap Ola. But the picture shown is the one I had to buy from Walmart..
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    Top reviews from the United States

    Reviewed in the United States on February 4, 2024
    Reviewed in the United States on December 21, 2023
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    5.0 out of 5 stars It was too small for This particular trailer hitch
    Reviewed in the United States on December 21, 2023
    I wound up buying one bigger from Walmart that was perfect Bigger size .. which is the one in this picture not the one returned.. this review is still gets 5 star thou because the little lock does work the keys are a bit primitive cheapy cheap Ola. But the picture shown is the one I had to buy from Walmart..
    Images in this review
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    Customer image
    Reviewed in the United States on August 28, 2022
    One person found this helpful
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    Reviewed in the United States on December 25, 2022
    7 people found this helpful
    Report
    Reviewed in the United States on February 16, 2024
    Reviewed in the United States on January 6, 2024
    Reviewed in the United States on March 2, 2024
    Reviewed in the United States on March 22, 2024

    Top reviews from other countries

    Translate all reviews to English
    Alfredo Plata Chávez
    5.0 out of 5 stars ¡¡¡EXCELENTE!!! 👌👍
    Reviewed in Mexico on July 8, 2023
    Shayne
    5.0 out of 5 stars Amazing Product.
    Reviewed in Canada on December 16, 2022
    PKay
    5.0 out of 5 stars Great product.
    Reviewed in the United Kingdom on June 24, 2023
    Kai Weber
    4.0 out of 5 stars Leicht enttäuscht, aber die Verarbeitung ist top
    Reviewed in Germany on July 4, 2021
    Customer image
    Kai Weber
    4.0 out of 5 stars Leicht enttäuscht, aber die Verarbeitung ist top
    Reviewed in Germany on July 4, 2021
    Wegen meines Faible für die Farbe Schwarz habe ich mir dieses Schloß bestellt.
    Die Verabreitung und Handhabung ist gut.
    Aber ich hatte Probleme das Schloß dort wo ich es eigentlich anbringen wollte zu montieren, der Grund dafür ist, dass es wenige Millimeter kleiner ist als mein zweites Schloß von Elemake, welches ich auch über Amazon bestellt habe.
    Trotzdem macht das Schloß, welches einfach zu bedienen ist, genau das wofür es geschaffen wurde.
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    AP Waterton
    5.0 out of 5 stars Good Qulaity Hitch Pin
    Reviewed in Singapore on February 21, 2022