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  1. Trailer Hitch Lock
  2. CURT
  3. Fits 2 Inch Hitch
  4. Standard Pin Lock
  5. Keyed Unique
  6. 2-13/16 Inch Span
Curt Trailer Hitch Receiver Lock - 2" Hitches - Chrome

Curt Trailer Hitch Receiver Lock - 2" Hitches - Chrome

Item # C72KR
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Trailer Hitch Lock
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Shipping Weight: 0.8 lbs
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This solid steel lock is perfect for keeping any hitch accessory or ball mount locked securely to your 2" x 2" hitch. Tube-style-key pin lock with 2-13/16" span resists picking, providing peace of mind. Chrome plating resists rust. Lowest Prices for the best trailer hitch lock from CURT. Curt Trailer Hitch Receiver Lock - 2" Hitches - Chrome part number C72KR can be ordered online at or call 800-298-1624 for expert service.
  • All Info
  • Reviews (8)
  • Q & A (0)
  • Videos (2)
  • Photos
  • Why etrailer?

CURT Trailer Hitch Lock - C72KR

  • Fits 2 Inch Hitch
  • Standard Pin Lock
  • Keyed Unique
  • CURT
  • 2-13/16 Inch Span
  • Steel
  • Flush Pin

This solid steel lock is perfect for keeping any hitch accessory or ball mount locked securely to your 2" x 2" hitch. Tube-style-key pin lock with 2-13/16" span resists picking, providing peace of mind. Chrome plating resists rust.


  • Flush-style trailer hitch receiver lock is used in place of standard pin and clip to prevent theft of ball mount or hitch-mounted accessory
    • Secure your bike rack, cargo carrier, hitch cover and more to your trailer hitch
  • Tube key lock cylinder provides better security than standard key mechanisms
    • Harder to pick and resists drilling
    • More difficult to duplicate keys
  • Weather-resistant dust cap keeps cylinder free from water and debris
  • Solid steel pin offers superior strength and durability
  • Chrome plating resists rust
  • 2 Keyed-alike keys included


  • Application: 2" x 2" trailer hitch receivers
  • Pin diameter: 5/8"
  • Inside pin length (span): 2-13/16"
  • Overall length: 5-1/4"

23515 Curt Hitch Lock - 2" Hitches - Chrome

Video of Curt Trailer Hitch Receiver Lock - 2" Hitches - Chrome

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Curt Trailer Hitch Receiver Lock Review

What's up everybody, it's AJ with Today we're gonna be checking out this Curt hitch lock for a two inch hitch. And what this is gonna do is lock up your ball mount or your bike rack or your cargo carrier that you put back here. That way nobody can mess with it when you're not around. Let's check it out. The cylinder lock has a dust cap that keeps any dirt and grime from getting in there and messing up the key so you can't use it when you need to.

It unlocks really easily. You just put the key in. Just like that. Now the only part that's a little difficult, is it will turn as you go to turn the key. So you can see that you can't just turn it like that.

So you probably put one hand on that to hold it in place and the other one to turn the key to unlock it. Then you can remove it. So it's not super difficult. It just, it spins with you. So you want to make sure you hold that in place while you turn the key.

But otherwise, really easy. It goes right back together. Turn the key to lock it back up. It's gonna be chrome-plated. The inside here is gonna be steel construction.

So it's gonna last when you leave it on your ball mount out in the weather, and the elements aren't gonna bother. It's not gonna rust and corrode. And as far as dimensions go, the whole thing overall from end to end is gonna be five and a quarter inches. The inside pin length right here is gonna be two and 13 sixteenths inches. And then the pin diameter is gonna be five eighths of an inch. The benefits of it being a cylinder or tube-style lock mechanism, is that it's gonna be harder to pick and is resistant to drilling. So you have that protection. If somebody was to go all the way to try and mess with it or break it, they're gonna have a lot of trouble doing that. It's gonna come with two keys so you can put one on your key ring or put one inside the truck. That way you always have a spare just in case you lose one. But otherwise, I think this lock's gonna be a great addition to your ball mount or your bike rack, cargo carrier, whatever you're putting in your back hitch of your two inch hitch, it's gonna fit right in there and lock it up tight so nobody can mess with it. Well, I think that does it. Thanks for hanging out and hope this helped..

Customer Reviews

Curt Trailer Hitch Receiver Lock - 2" Hitches - Chrome - C72KR

Average Customer Rating:  4.6 out of 5 stars   (8 Customer Reviews)

This solid steel lock is perfect for keeping any hitch accessory or ball mount locked securely to your 2" x 2" hitch. Tube-style-key pin lock with 2-13/16" span resists picking, providing peace of mind. Chrome plating resists rust.

- C72KR

Of all the products I ordered from Curt Mfg., I was least satisfied with this hitch receiver lock. It fit the receiver hole and the ball mount hole well. And the manufacturing quality is very good. But...when I ordered it I was under the impression it would be sized to a 2 inch receiver. There is more than a 1/4 inch of side to side play in the pin with the locking head installed. Just another rattle spot. This product is also made in China, something I did not expect from Curt Mfg.

Hi Robert, Thank you for your feedback. This hitch lock is just a locking pin and does not have any anti-rattle features to it. If youre looking for an anti-rattle device that is also made in the USA, I recommend the Roadmaster Quiet Hitch for 2 Trailer Hitches, part RM-061.
-- Etrailer Expert Tyler M - 09/30/2020

- C72KR

The order proceedure from start to finish was very professional and very helpful. Any future needs will be from etrailer.

- C72KR

Works very well and easy to lock and un lock.

- C72KR

Looks good and works like it should

- C72KR

Just what we needed.

- C72KR

- C72KR

- C72KR


Ask the Experts about this CURT Trailer Hitch Lock

  • Curt Ball Mount and Hitch Receiver Lock
    Yes, I can confirm that all of those parts do fit together. The Coupler Pin - 5/16" x 2-1/2" item # 37201051 will be loose inside that ball mount though. You will get quite a bit of play. The hole in the Curt Class III Ball Mount with 2-5/16" Ball - 2" Rise or 4" Drop - 7,500 lbs item # C45042 accepts a 5/8" pin. I recommend purchasing a Curt Trailer Hitch Receiver Lock - 2" Hitches - Chrome item # C72KR. This will secure your ball mount inside your hitches receiver and keep it from being...
    view full answer...

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Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Kathleen M
Installed by:
Kathleen M
Employee Lindsey S
Edited by:
Lindsey S
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M
Employee Jonathan Y
Video by:
Jonathan Y
Employee Kristina F
Written by:
Kristina F

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