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Universal Part
UPC: 612314235186

5/8" Hitch Lock (2" Receiver, Barbell, Black) #23518

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  • 5/8" diameter pin fits 2" x 2" receiver tubes
  • Usable pin length is 2.850" (not compatible with double-walled receiver tubes)
  • Protected by a durable black finish
  • Easy-to-operate, 1/4-turn lock activation
  • Watertight dust cap prevents internal corrosion
  • Includes two keys for added convenience
  • Limited lifetime warranty (one-year finish, one-year parts)

Guides & Install Sheets

Product Videos


  • HUB_USAD25
  • Part TypeHitch Lock
  • MaterialCarbon Steel
  • Shipping Weight0.700
  • WarrantyLimited Lifetime Warranty (One-Year Finish, One-Year Parts)
  • Receiver Tube Size2 IN
  • Pin Diameter.625

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.

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You're reviewing:5/8" Hitch Lock (2" Receiver, Barbell, Black)
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  1. 20%


    Does not fit

    Great Lock but on my 2016 GMC 1500 SLT it does not work in the hitch. The diameter is correct but the shaft is not long enough. There are two plates welded on the receiver tube on the outside from the factory making virtually almost all locks useless. The only ones i have been able to find are the standard cotter pin versions but nothing yet that is lockable.

  2. 100%


    Hitch lock

    Solidly made. After a year on the vehicle....still looks and works like new. Zero corrosion.

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