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Weigh Safe Hitch Receiver Lock for 2", 2-1/2", and 3" Hitches - 3-1/2" Span

Weigh Safe Hitch Receiver Lock for 2", 2-1/2", and 3" Hitches - 3-1/2" Span

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Trailer Hitch Lock
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Shipping Weight: 0.94 lbs
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Lowest Prices for the best trailer hitch lock from Weigh Safe. Weigh Safe Hitch Receiver Lock for 2", 2-1/2", and 3" Hitches - 3-1/2" Span part number WS05 can be ordered online at or call 1-800-496-5010 for expert service.
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  • Reviews (177)
  • Q & A (0)
  • Videos (2)
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Weigh Safe Trailer Hitch Lock

  • Fits 2 Inch Hitch
  • Fits 2-1/2 Inch Hitch
  • Fits 3 Inch Hitch
  • Standard Pin Lock
  • Keyed Unique
  • Weigh Safe
  • 3-1/2 Inch Span
  • Stainless Steel
  • Flush Pin

  • Bent-pin hitch lock for 2", 2-1/2", or 3" trailer hitch receivers
  • Inside pin length (span): 3-1/2"
  • Pin diameter: 5/8"
  • Includes 2 keys
  • 1-Year warranty

WS05 Weigh Safe Bent Shank Hitch Lock for 2", 2-1/2", and 3" Hitches

Item # WS05

Video of Weigh Safe Hitch Receiver Lock for 2", 2-1/2", and 3" Hitches - 3-1/2" Span

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

Video Transcript for Weigh Safe Hitch Receiver Lock Review

AJ: What's up everybody. It's AJ with Today we're going to be checking out this hitch lock from Weigh Safe. We're going to do it on our Weigh Safe ball mount here and what it's going to do is help lock it to our hitch. That way, when you're not around, you have to worry about anybody messing with it. Let's check it out.The locks very simple to operate, works on a tube key design.

So that's going to have better protections than just a regular key. It's way harder to pick and have people mess with it. You just simply insert the key, turn it, and it comes apart. You put the pen to the hitch pin hole on your hitch and your ball mount, and then just push the lock on the other side. Push the lock, turn the key, it's locked.

It's that easy. Now your ball mounts not going anywhere.Let's take a closer look at the lock and see the nice textured grip. Then it's on both sides, the side with the lock and this side and that's good to get you a nice, good hold on it when you go to take it out or when you're locking up your ball mount. It does turn a little bit and you put that key in there so it's nice. You can grab that side while you operate the key on this side.

And that just gives you a better grip overall.That way you don't have this spinning while you're trying to unlock it, and that can be annoying. Just to show you what I was talking about when it's installed in the hitch, a little easier here in my hands.The other feature it has that I think is pretty cool is the attached dust cap because some of the locks that I've worked with don't have those and this really helps keep your locket here nice and protected from the elements, because if you leave this exposed it's going to rust or cause damage on the inside. This just keeps it working smoother and better, longer.Something I want to point out, as you can see, there is a little play back and forth, but that's because we have it on a two and a half inch hitch today and this pitch pin lock is supposed to work with two inch hitches, two and a half inch hitches and three inch hitches. So, there's going to be a little bit of play. There's going to be less in the three inch, but not enough for anybody to get in there and cause any damage to your lock.The lock itself is six inches long, but another thing I'd like to point out is your actual hitch.

Every hitch is going to be different. Yours might not look like this. You can see that the lock hangs over where the safety chain loops go. So you want to keep that in mind, look at your hitch and see where that's going to line up.Since we're talking measurements, let's talk about the pin itself. The pin measures three and a half inches. All this is a usable space. Then the diameter of the pin is five eights. So that's what kind of hitch pin holes is going to work with. Overall, I do like the lock. It works just fine. It's going to keep the ball mounts safe. There's only a few nitpicky things on my end that I didn't like, so I'm going to show you.When you're going to put it on, you have to lean over. It doesn't auto lock, you still have to turn the key and you see that doesn't work so well without grabbing the other side and then doing it. Then it locks into place. It's a real minor complaint, but some of the other hitch locks I've worked with all you got to do . you don't even need the key, you just pop it on and it locks automatically and I think that system works a little better just because sometimes it's hard to get both of your hands when you've got the trailer and the frame here in the way. But, like I've already said, it's a very minor complaint. It's not a big deal. I think that does it for a look at the Weigh Safe hitch pin lock. I hope this helped.

Customer Reviews

Weigh Safe Hitch Receiver Lock for 2", 2-1/2", and 3" Hitches - 3-1/2" Span - WS05

Average Customer Rating:  4.8 out of 5 stars   (177 Customer Reviews)


Not easy to find a pin for a 3” receiver. My 2017 Ford F-250 Super Duty has a 3” hitch mount. This pin works great with my B&W Tow and Stow three ball hitch. For the money I spent on that hitch I needed to be able to lock it to the truck. This pin is perfect. I did have to grease the pin to get it to fit into the holes but it did eventually go once I got them lined up.

After a year the lock pin has performed as expected. I would highly recommend if you have a high dollar 3” hitch that you want to keep attached to your truck.
Brian - 12/29/2018


Ordered the Weigh Safe WS10-25 drop ball mount with the Weigh Safe receiver lock. The hitch looked like it was used. The Weigh Safe sticker had been removed and the unit was gouged on the shaft and ball mount. This may have been a return item that was shipped to me. I'm very disappointed. I expect a new product, not a used or poor quality second.

First time buying from etrailer. Most likely my last.


Amazing customer service and shipping was fast. They also followed up with us to make sure we got our shipment and that we were happy with the product.... That is a thing of the past that I miss and etrailer seems to still hold up those values.. Highly recommended!!!


Appears to be well constructed and I like the round key as opposed to a conventional key as they tend to resist corrosion in the working parts better than their conventional bretheren. I use it on a 2 1/2" reciever and it fits satisfactorily.


This is a good quality pin but it is a little difficult to turn the key to lock the end on without pushing the pin partially out. I don't fully trust that it's locked so wind up pulling on the end. It has always been locked but I'm a little leery of the way it locks on, just some balls that move into and out of a detent. Pretty pricey for what it is. Since I will rarely leave my hitch on, I'll probably just use a conventional pin most of the time.

Wish my Weigh Safe hitch and pin were keyed alike also. Not sure how that could have been ordered but would do that in a do over.

Still feel the same about this pin. I use a regular pin with a clip unless I need to leave the hitch installed. Would be nice if the manufacturer saw fit to put a hole in this pin so that you could use a spring clip plus the locking end.
Richard - 04/06/2020


Lock failed and I had to have it cut off. Etrailer provided great customer service, but the manufacturer was a bit difficult to work with. They did replace it, but I am skeptical about using the replacement.

So far, so good. Seems to be a better design than the previous one which failed.
SEZ60089 - 10/18/2021


Doesn’t seem to be many hitch locks out there for a 3” hitch, this one works very nicely. Would’ve been nice to have the option to have keyed alike (since I bought everything together) without buying all the extra parts I don’t need but we are a wasteful world these days.

The dust cover on the lock quickly dry toys and crumbles after leaving your hands black, the keys are flimsy had to order replacements very quickly, I quit using this after about 6 months. Can’t take stars away it looks like.
Matt C - 11/28/2018


This was not my first order from etrailer and it won't be my last. Their website is easy to navigate and the order process is simple. Shipping is quick and arrives when expected. Quality of products is top of the line.
So no surprises on the locking hitch pin I just received. I have several hitch pins and a couple of them with locks, but my new truck is the first I've owned with a 2.5inch hitch so I wanted to get a locking pin to secure my expensive WD hitch. This serves that purpose perfectly.


Great products, Service and Prices


My trailer hitch cover is still in place.

hitch lock keeps it in place


This is a great hitch. It is very well made and should last a lifetime. The color and material are great. The hitch is heavy and made strong. The balls of the hitch fit my trailer tongue perfect. Need a hitch this is the one you should get. When you hook your trailer to it you see the weight of your trailer tongue right on the hitch.

It is great. No problems
Verdell - 08/22/2020


Lock is well made and as advertised

Only used the weigh safe hitch a few times this year but all works as intended. The lock gives me peace of mind that my very nice ball mount is safe. No rattling noises or any other annoying issues while towing using weigh safe products.
William - 01/17/2022


Looks great and fits perfectly well on my 2014 F250.


I received my hitch and locking pin in a timely manor. I have not used the hitch yet but seems to be very high quality and looks beautiful. I came packaged very well in two boxes. I would do business with the again.


Great receiver hitch lock. I particularly like the non traditional key because it doesn’t seem as if it can break inside the lock.


This will be a huge relief as I use a standard pin for my weigh safe 10" hitch
and take my hitch off after every use. Now I can leave on with this reliable keyed pin which will work really good.

As expected really good
Paul - 12/01/2019


I had to take off the rubber o-ring in order for the lock to fit on. I have a 3 inch hitch on a 2021 F-350 Diesel.There is no room for play. It should be longer.


I bought Weigh Safe Hitch Pen to keep the hitch from being stolen. I only hook up trailers to haul mulch or dirt for my home property on limited occasions. The lock does well and easy to use. Eventually I will have one of those holes in the water to throw all your money in one day to pull behind my truck.


Great product, works as advertised.


Great pin. However, the hinge on the rubber dust cover broke. Its not very sturdy- hence the four star rating. Redesign the cover and send me a new one and the rating goes to 5 star.

Pin is great. Still haven’t gotten a new rubber cover though...
Michael - 07/21/2019


The hitch lock works great but the plastic/rubber cap broke and does not stay on to cover the key slot.


This is the second hitch I have ordered and it really is a thing of beauty when it arrives. So far with the first one, I have not noticed any problems. The second one is for a work truck. My only kick back on ordering was my delivery took almost a month for a locking hitch pin and the hitch itself.


Easy ordering, quick delivery, great customer service, good products and availability. is top notch!! I used the email option to ask questions and to resolve a few issues..... and I got answers and service on the same day. I purchased an adjustable ball mount hitch (Weigh-Safe LTB10-2.5) and a hitch lock (Weigh-Safe WS05) and, first time out-of-the-box, I'm very satisfied with the quality of these products. I'll provide another product review once I've used them for about a year. Overall a very good experience so I'll certainly use again and highly recommend.


Works very well, no complaints. The rubber keyhole cover does a great job deflecting road grime. Used it throughout last winter with zero issues freezing up or getting full of dirt/salt.


First I would like to say thank-you your company’s service , was great from ordering to delivery.... as for the weigh safe #WS05 hitch receiver lock it was exactly what I was looking for giving me the piece of mind of the added security , the the receiver locking pin itself is solid good looking construction, looking forward to many years of use

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Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Wilson B
Written by:
Wilson B
Employee Mike S
Updated by:
Mike S
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