Key Locking Trailer Hitch Pin

Prevent thieves from stealing your hitch-mounted carrier, bicycle rack, trailer or towing ball mount from the rear of your vehicle by replacing a standard receiver pin with this key locking hitch pin. Comes with two keys and available for 1-1/4" (Class I or II) and 2" (Class III or IV) hitch receivers.

  • Steel barbell construction with a polished zinc plate finish
  • Includes two rubber-capped keys
  • Available for 1-1/4" (Class 1 or II) and 2" (Class III or IV) hitch receivers
  • Cross-hatched diamond pattern grip
  • Greasing is recommended to prolong lifetime
1 Year Warranty
Item # Description Hitch Size Status Price Quantity
HP32 1/2" x 2-3/4" 1-1/4" Class I or II
HP31 5/8" x 2-3/4" 2" Class III or IV


Deter theft of hitch mounted carriers, racks, hitch balls, and trailers with a secure locking hitch pin. Available in sizes to fit 1-1/4" Class I/II or 2" Class III/IV vehicle hitch receivers.


Replace a standard receiver pin with a high quality locking hitch pin to deter theft while keeping hitch ball mounts, hitch carriers, trailers, bicycle racks, and other hitch devices secure. Each locking hitch pin features a strip of knurled diamond pattern surface for added grip. Includes (2) keys and a rubber keyhole cap to reduce moisture buildup inside the lock. Sizes are available for 1-1/4" Class I/II or 2" Class III/IV vehicle hitch receivers. Made with a steel barbell construction, finished in polished zinc plate for added durability.

Product Features

  • Available for 1-1/4" and 2" hitch receivers
  • Great for deterring theft of ball mounts, hitch carriers, racks, trailers, and other hitch devices
  • Includes (2) keys and rubber keyhole cap
  • Diamond pattern knurled surface on ends for added grip
  • Steel barbell construction with a polished zinc plate finish
  • HP32 is 6" overall with 2-7/8" distance between ends
  • 1 year warranty


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Review Summary (Based on 10 Reviews)


5 Stars Quality locking pin

Rob from FL wrote (September 26, 2016):

My second locking pin. First bought 6 yrs ago works just as good as new, bought a second for a riser. A good quality lock. And super fast shipping.

5 Stars Trailer hitch locking pin

Ken F. from MD wrote (February 04, 2016):

It is exactly what I thought I was ordering. The quality is very good. I am using it to lock my bike rack to the trailer hitch. The weather cap around the key lock could be tighter but still should work quite well. Free shipping was a plus. The price was better then the car parts store (Advance).

5 Stars Locking Hitch Pin

Michael from MI wrote (January 09, 2016):

Product is as advertised. Arrived sooner than expected and was easy to install. A little long for my needs but better too long than not long enough.

5 Stars Key Locking Trailer Hitch Pin

Mike from PA wrote (August 29, 2015):

Very simple and easy to use, works well for my bike rack.

5 Stars Very nice product

Donald from PA wrote (May 18, 2015):

Easy to use and works smoothly..

5 Stars Hitch stolen in Lubbock

billp37 from NM wrote (May 11, 2015):

Hitch stolen in Lubbock 4/22/15. Never thought this would happen. Found Reese replacement hitch, ball, and pin at Academy in Austin. Hitch removal and installation hassle. Shopped Amazon. Locking pin arrived on time and works great. Electrician tape on lock side of pin prevents lateral movement.

5 Stars 1/2 inch locking hitch pin

george from FL wrote (April 28, 2015):

Great to be able to find someone who will sell a single 1/2 inch locking pin without having to buy a set of pins. Seem to be a quality product at a very fair price with great quick service and an easy order web site. As long as the product is as good as the service this will be a great buy.

4 Stars Works well

Kelly from NM wrote (March 16, 2015):

Fit well and easy to use.

4 Stars My second locking pin, Not as robust as first

rdavi from CA wrote (March 13, 2015):

I bought a locking pin like 15 years ago. that one still works good but has no dust cover and need to WD40 to get it off sometimes. This one I put on my wife's car. It installs easy but does not feel ad hood as the the other one I have.

4 Stars 1/2" Locking Hitch Pin for 1-1/4" Receiver

Shepard from ME wrote (September 29, 2014):

Generally OK product. Not very weatherproof. Not very rustproof for long use. Keylock not exactly bank-vault quality, but OK for anyone who does not have a bobby pin! Good product for the money if you are willing to keep it well greased against corrosion.