Manufacturer | CURT |
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Place of Business | MIAMI, FL, 33167 US |
Brand | Curt Manufacturing |
Model | 23518 |
Product Dimensions | 22.53 x 4.75 x 3.18 cm; 290 Grams |
Item model number | 23518 |
Is discontinued by manufacturer | No |
Exterior | Semi-Gloss Black Powder Coat |
Manufacturer part number | 23518 |
OEM part number | 23518 |
Item Weight | 290 g |
Country of origin | Taiwan |
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CURT Manufacturing 23518 Black Trailer Hitch Lock 5/8-Inch Pin Diameter Fits 2-Inch Receiver
Enhance your purchase
- Easy-to-operate 1/4 turn lock activation. The finish is semi gloss black powder coat
- Water-tight dust cap prevents corrosion, 5/8" diameter pin fits 2" x 2" receiver tubes
- Barbell hitch lock. Material : Carbon Steel
- Two keys included
Frequently bought together
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From the manufacturer

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.

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
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Fast, easy operationNearly 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 capCURT 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 resistanceTo 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 includedTo 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. |

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
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Right-angle hitch lockThe 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 lockThis 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 lockThe 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
ASIN | B00T9N6DPK |
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Customer Reviews |
4.3 out of 5 stars |
Best Sellers Rank | #903 in Automotive (See Top 100 in Automotive) #4 in Towing Hitch Locks |
Date First Available | June 23 2015 |
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Top reviews
Top reviews from Canada
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seized up in 4 months! grinding off!
This product looked great upon arrival. However, now after 4 months I need to remove this lock pin to add a new size ball hitch and I simply cannot get this unlocked. It is all rusted and now I have to take this to my mechanic to grind off and throw in the garbage.
Top reviews from other countries

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.


Reviewed in Germany 🇩🇪 on July 4, 2021
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.





