1. Hitch Anti-Rattle
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  3. Fits 2 Inch Hitch
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  5. Threaded Pin Style
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Curt Anti-Rattle Kit for 2" Trailer Hitches

Curt Anti-Rattle Kit for 2" Trailer Hitches

Item # C22321
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C22321 - Fits 2 Inch Hitch Curt Hitch Anti-Rattle
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Call 800-298-8924 to order Curt hitch anti-rattle part number C22321 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Anti-Rattle Kit for 2" Trailer Hitches. Hitch Anti-Rattle reviews from real customers.
  • All Info
  • Reviews (60)
  • Q & A (17)
  • Videos (2)
  • Photos
  • Why etrailer?

Curt Hitch Anti-Rattle - C22321

  • Fits 2 Inch Hitch
  • Accessory Anti-Rattle
  • Curt
  • Threaded Pin Style
  • Standard Anti-Rattle
  • Universal


  • Stops rattling and prevents swaying of load when using a hollow shank
  • Compatible with CURT cargo carriers and other hollow-shank accessories
  • Threaded pin allows bracket to be tightly installed
  • Constructed from high-strength steel
  • Protected by a durable yellow zinc-plated finish


22321 Curt Anti-Rattle Kit for 2" Trailer Hitches





Video of Curt Anti-Rattle Kit for 2" Trailer Hitches

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




Video Transcript for Curt Anti-Rattle Kit for 2 Inch Trailer Hitches Review

Hey guys, it's Randy here at etrailer.com We're always looking for solutions for common towing and hauling problems and today what we're going to look at are anti rattle device. Specifically, it's going to be from Curt and basically it's going to help solve the problem of an item in our hitch moving back and forth, moving up and down, making a lot of noise.Take our cargo carrier here for instance, you can see how much movement and how much play that there is at that connection point. Basically, once we put weight on here and we're heading down the road, as that shifts side to side or it moves up and down it can be felt in the cab of the vehicle.We'll take a look at the anti rattle device. We're going to show you how to get it installed, how to get it properly lined up and how it'll fix all those issues. Now when installing the anti-rattle, this tab is generally going to be sticking straight up there just like my finger. We've bent that, already.

Just a pair of pliers. You want to bend that down straight there.As you see the hole, if that just runs down to the end it's not going to line up. That's the little modification you'll need to make to ensure this is going to work with any hollow shank item. Then you see I've got it bent out just slightly. I do that so I have spring pressure.

As I slide this in, you can see it's going to hold itself in place so we can position it in line with our pinhole and then it'll hold itself there so we don't have to worry about it moving as we put it in our hitch.That little tab has been a concern for some customers. They didn't realize they could just bend that out of the way. Definitely keep that in mind. It is important that this is installed inside of the shank and not inside of your hitch. Instead of the hitch, you're just going to push it back with the end of the shank, so it needs to go inside the shank lined up with that pinhole.

Once we have it there, I'm going to stick this in and thread it in that bolt. Once we get it tightened down, you'll notice all those issues are going to be gone.Just take the clip, slide it in the other side there. Now you can see with that installed all that movement and all that play is isolated. We don't have the noise, we don't have the movement. It's just going to be a much smoother ride for anything in our cargo carrier and also for us in the vehicle.

Now you've already seen how much of a difference it makes on the cargo carrier, but now that we've got it installed on our ball mount, we're going to go out and get some video of that, as well. I think you'll see it makes a huge difference in the ride quality of your trailer. Being able to isolate that point and not having all that movement and play.We're going over our bumps course to start. You're going to see in the before a lot of movement and that's going to change dramatically in the after as we go through these speed bumps there's going to be a lot of pushing and pulling and up and down movement on that tongue and this anti-rail device really helps to take care of that.You see the few situations where this is going to come in really handy but you can come up with your own, too. Whether it's a seat that you've got back there and you just want to make sure that's isolated. Something me and my friends use this for a lot is when we're off roading for our cargo carriers, we don't want that movement. We don't want that play. Especially when you're going side to side it can get uncomfortable. And this has been one of the best solutions I found.Now, one thing I will say about that is that when we put that pressure in and when we bring that pressure in, if we're doing a lot of up and down movement, it doesn't isolate all of that. It makes it much more difficult for the item to move. But let's say if you have a tow bar behind your motor home, I don't know that this Curt anti-rattle is going to keep that up and down isolated just because the vehicle there is going to be so heavy. In that situation I recommend the Roadmaster Quiet Hitch. The Quiet Hitch is going to come around and it does an excellent job of isolation. In heavier duty applications that's definitely one of my favorites.We also have a tool free option from lets go arrow that's going to thread in very similar to this. It has an insert that fits inside the hollow shank very similar to this, but instead of having to use a wrench or a tool to tighten the bolt down, you'll just spin it in and it has a lever lock. We've got good options out there. Those would be two I would recommend. Also if you have a solid shank item, that Quiet Hitch will work where the let's go arrow or the Curt won't. But all in all I really like this one. I use it all the time, and I think for light to medium applications, it's going to be an excellent choice.


Customer Reviews

Curt Anti-Rattle Kit for 2" Trailer Hitches - C22321

Average Customer Rating:  4.7 out of 5 stars   (60 Customer Reviews)


- C22321
by:

Great product, works perfectly, item did exactly what they said it would do , etrailer went out of their way to explain installation, but it wasn't really necessary, very simple installation. Curt products are top shelf, and nobody can touch etrailers prices and service. 545244



- C22321
by:

Product works well, only complaint is the clip did not last very long - easy to fix/replace. Use this on my 4-bike carrier, does well preventing too much movement even when the carrier is fully loaded. 697648



- C22321
by:

This is the second one I have purchased. One for my bike rack and the other for my trailer hitch. Love these things. They keep every think tight and riddle free. 442971



- C22321
by:

This device will quiet the rattle between the ball mount and the receiver. It works fine, with the only disadvantage being you have to have a wrench (I recommend 8" adjustable) to tighten it up. The only rattle you will have after installing this device will be an occasional rattle between the ball and trailer coupling. It does quiet the rattles. 674012



- C22321
by:

Great product and customer service, pricing and availability. Keep up the great job looking forward to future business. 508671



- C22321
by:

Trailer pulls a thousand times better with no jiggle or rattle at all....was a little concerned about the pin portion being so much smaller than the receivers hole and basically pulling trailer with only the threaded end of the pin (other end basically floats in the hole)....however, appears to be stout and have no issues pulling a 4000 lb camper. 553595



- C22321
by:

It does exactly what it is supposed to do. I only needed the bolt, lock washer and clip. I already had the bracket. Installing the bolt was a little difficult. I painted a line on the bar that goes into the receiver to help line up the hole. 527157



- C22321
by:

The hub and drum kit that I ordered was perfect everything went together as planned and my boat trailer is ready to use. The videos were very explicit and right to the point. How ever I order a 22321 Curt anti-rattle kit for my 2 inch hitch so I thought after watching the video which was not very well explained at all it should have shown someone putting this part on the hitch itself not just talk about it it does not fit my receiver and for $10 to try and get the right part I am not going to send it back the shipping would cost more than the part. My hitch is a standard Dodge Ram truck with a 2 inch by 2 inch insert that has a little play in it when inserted I was just trying to get the rattle noise out of it. This accessory said right on it for 2 inch with a picture and arrows pointing to square box. Thanks 504187


Comments
The Curt # C22321 is designed to have the bracket portion slid into the hollow shank of the hitch mounted accessory. Once the bracket is in place and lined up with the hitch pin hole, it should take the movement out of the hitch accessory once the bolt is tightened.
-- Mike L - 05/04/2018

38111
Comments
It never worked it doesn’t fit it was a waste of money I called the help line number and got no satisfaction Thought they should have sent me a product to replace what didn’t fit my 2x2 receiver for the rattle! Very disappointed
Jim - 05/04/2019

54840

This anti rattle is intended to be inserted into a hollow shank accessory and then snugged up to the wall of the receiver tube on your OEM Ram hitch. My recommendation for an anti-rattle his the Roadmaster Quiet hitch, # RM-061
Roadmaster Quiet Hitch for 2" Trailer Hitches
$27.56
. It is an external anti-rattle device and costs a bit more than this item, but it has outstanding reviews from our customers.

-- Rachael H - 5/24/2019


- C22321
by:

Great product simple but effective 900972



- C22321
by:

This is also what I needed and also was worth the wait. 899750



- C22321
by:

I just installed this simple and inexpensive device. Annoying problem solved. I use a 2" hollow Curt Hitch with a reducer bar to hold my 1 3/8" Yakima bike tray rack. The reducer was loose in the Curt hitch. After installing the kit no more rattle. BTW using the reducer bar also allows me to open the rear gate when the bike rack is vertical. Very handy. 882992



- C22321
by:

It worked like it was supposed to. 881397



- C22321
by:

This Kit works, if your like me having a constant noise from the trailer receiver is annoying while driving. much safer than a loose hitch pin that could come out. Great design, 875136



- C22321
by:

Worked fine as described. 869153



- C22321
by:

Seems a bit light but does its job perf ectly. 866124



- C22321
by:

This is a universal anti-rattle kit, whether you have a Curt brand hitch or not (just bend the tab out of the way and it’ll fit inside). As long as your hitch is hollow, this will fit inside and keep it from rattling. I purchased a 2” Etrailer brand hitch extender (Item #80307) and this anti-rattle fits perfectly inside once you bend the little tab out of the way. Sure beats all the other $35+ options. 863304



- C22321
by:

Tried to use on 2014 Tundra. The Bolt/pin length is not long enough. When fully tightening through receiver pin hold the pin end with safety clip barely sticks past the receiver to enable installation of the safety pin. I couldn't use it. The receiver is standard 2" so this doesn't make sense. Curt should increase the pin length as well as the size of the safety clip and respective clip hole. The clip is too small/weak. If etrailer has a updated larger version I would appreciate a replacement. What I received was a waste of money. 844797



- C22321
by:

An exact fit. 829060



- C22321
by:

This anti-rattle kit is great. It’s simple to install and worked much better than I expected. 819805



- C22321
by:

This is the best cheap upgrade that you can make to your towing system. Completely got rid of the sway in the hitch. Very easy to install and works perfectly everytime. The finish has held up over the last year with no rust. 816803



- C22321
by:

Use this product on my Ford escape for one year and worked perfectly, no rattle at all.Great! Using it now on my F150 804991



- C22321
by:

Loosens up not comfortable that it secures on one side hitch how about other hole for towing 796220



- C22321
by:

This was great. I wasn't going to pull a trailer right away but I was going to use the hitch to extend my trunk space and I was concerned about the noise associated with trailer hitches on cars on long road trips. This little jule took care of all the slack in the hitch and basket. I bought two of these (one for the hitch and one for the adapter that lifted the basket a little higher). I would buy them again. 793675



- C22321
by:

Extremely valuable to have to reduce rattling . Absolutely amazing 784637



- C22321
by:

Very good product,quiet ,easy to install 767138


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Show More Reviews

Ask the Experts about this Curt Hitch Anti-Rattle

  • Anti-Rattle Hitch Pin Needed with a 5/8" Diameter
    I have the perfect alternative for you! The Let's Go Aero Anti-Rattle Hitch Pin # SHP2061 is for accessories and ball mounts that fit a 2" receiver and have a hollow shank. The block goes inside the shank of your accessory and the threaded pin pulls it in to the side of the receiver to help eliminate movement. The pin has a 5/8" diameter like what you are looking for. This comes with just a clip but you can add the padlock # ACC3250 if you want more security. A demonstration video...
    view full answer...
  • Universal Anti-Rattle Hitch Lock for 2-Inch Hitch
    Curt Anti-Rattle Kit # C22321 cannot be made to lock but we do offer other anti-rattle devices that do lock, such as the Let's Go Aero # 63232 which also fits 2-inch hitches like the Curt does. This anti-rattle device includes a lock and two keys and it works in any hollow shank accessory, such as ball mount # C45036 or hitch cargo carrier # C18151.
    view full answer...
  • Usable Length of Threaded Bolt Included w/ Curt C22321 Anti-Rattle Kit
    The usable length of the bolt is right at 3-1/4 inches, or just at 3 inches if the lock washer is used. The Curt # C22321 isn't designed for a 2-1/2 inch receiver, so I'd recommend another option like # BX88312, which is actually designed specifically for a 2 inch reducer used in a a 2-1/2 inch receiver. I've linked you to a product description video.
    view full answer...
  • Compatibility of Curt C22321 Anti-Rattle Device w/ Curt C23088 Receiver and Trailer Coupler Lock Kit
    I'd recommend using a different anti-rattle solution like # RM-061, which would be compatible with the lock kit.The # C22321 Curt Anti-Rattle pin wouldn't work in conjunction with the Curt # C23088 lock set that you'd mentioned, becasue the # C222321 is actually a threaded hitch pin. If that were used, you couldn't use the hitch lock inlcuded in the lock kit. I've linked you to a video showing how the # RM-061 anti-rattle device works.
    view full answer...
  • Is The Curt Anti-Rattle Kit Rated To Towing
    I contacted Curt on your behalf regarding the Curt Anti-Rattle Kit for 2" Trailer Hitches # C22321. You can definitely tow with this anti-rattle pin kit. Hitch pins overall are not weight rated and the majority of the tongue weight and towing weight is not directly on the hitch pin. There will be no capacity concern using this threaded hitch pin with anti-rattle on a 2 inch hitch receiver with the exception of any solid shank accessory.
    view full answer...
  • Thread Size and Wrench Needed for Curt Anti-Rattle Hitch Pin
    The thread size is 1/2-13 like you need. The wrench size is 3/4 inch.
    view full answer...
  • Replacement Curt Bike Rack Threaded Hitch Pin
    I was able to confirm with Curt the Curt Anti-Rattle Kit for 2" Trailer Hitches # C22321 works for all their hitch mounted bike racks. Included below is a review video for additional information.
    view full answer...
  • Curt Anti-Rattle Device # 22321 Does Not Insert Far Enough into Spare Tire Carrier Shank
    What you would have to do with Curt anti-rattle device # C22321 is bend that little tab so that it will allow the square part of the device to go further into the shank of the accessory. The only problem then is keeping it lined up as you insert the accessory into the hitch. A small amount of adhesive on the device prior to lining up the pin holes would suffice.
    view full answer...
  • Does Smaller Cotter Pin End of Curt Hitch Accessories C22321 Affect Securing Itself to Ball Mount
    I can see your concern, but the hitch pin of the Curt Anti-Rattle Kit # C22321 will work just fine. Reason being is that hitch pins actually rarely bare any of the weight of the trailer. The tongue weight pushes so hard down on the coupler that it pins itself to the hitch tube which prevents it from sliding out more than anything. With the # C22321 it pulls the ball mount so hard to the side of the hitch tube that you would not need to worry about the smaller cotter pin side of the assembly...
    view full answer...
  • Does Curt Make an Anti-Rattle Pin for Trailer Hitch on Back of 2010 BMW X5?
    Curt does make an anti-rattle pin # C22321 that is compatible with hollow-shank accessories. I've added a link to a video review of this pin for you to take a look at. Please keep in mind this hitch is going to require the use of stabilizing straps # 18050 with all non-trailer accessories such as bike racks and cargo carriers in order to maintain the warranty. I've added a link to a demonstration video which shows you how the straps are used.
    view full answer...
  • Anti-Rattle Hitch Pin Recommendation for Curt Hitch Bike Rack
    If you are looking for a replacement anti-rattle hitch pin for a Curt bike rack you'd want the Curt kit part # C22321. I can't recommend you use a Sportrack anti-rattle device with a Curt bike rack.
    view full answer...
  • What Anti-Rattle Device Should I Use For My 2 Draw-Tite Max-Frame Trailer Hitch Receiver?
    The correct anti rattle really all depends on what kind of accessory you are using. If you are using a hollow shank accessory, I recommend using the Curt Anti Rattle Kit Part # C22321. All you have to do is insert the bracket into the shank of your accessory, then insert the threaded hitch pin, tighten it down and your accessory will be as solid as the hitch. You will need to have a wrench whenever you install or remove the accessory. Here at etrailer we use Part # PTW38106-24 in the...
    view full answer...
  • Anti-Rattle Bolt for Curt Hitch Mount Bike Racks
    If you have a Curt hitch mount bike rack for Class I and Class II 1-1/4" trailer hitches like part # C18029, then you can use the Curt Anti-Rattle Kit, # F-315. If you have a Curt hitch mount bike rack for Class III or IV 2 inch trailer hitches like part # C18065, then you can use the Curt Anti-Rattle Kit, # C22321, but you won't need the shank insert because the shank already has a threaded insert. I've attached a review video of each anti-rattle kit for you to check out.
    view full answer...
  • Replacement Anti Rattle Hitch Pin for Curt Bike Racks
    The anti rattle pin for Curt bike rack # C18087 isn't available as a replacement part. However, it is the same pin as # C22321 for a 2 inch hitch receiver and # F-315 for a 1-1/4 inch.
    view full answer...
  • Anti-Rattle Device for Use with Roadmaster Hitch Extender # RM-071-75
    Yes, since the Roadmaster hitch extender part # RM-071-75 has a hollow shank the Curt anti-rattle part # C22321 will work perfectly with it.
    view full answer...
  • Will the MaxxTow 30x50 Wheelchair Carrier w/ 60 Long Ramp Work for my Powered Scooter?
    Thanks for the question. The MaxxTow 30x50 Wheelchair Carrier w/ 60" Long Ramp part # MT70260 will work out very well for you. With your scooter and batteries coming in at a combined weight of 243 lbs. you will be just under half of the carriers maximum capacity. This is a very popular carrier for this exact situation and I think it will serve you very well for years to come. Because this carrier is secured using the provided pin and clip it is going to have quite a bit of movement side...
    view full answer...
  • Anti-Rattle Hitch Lock and 2" Hitch Adapter for Curt 4 Bike Rack
    Sounds like you have the Curt 4 Bike Rack # C18030 on your 2015 Toyota Sienna. First, for the anti-rattle lock, if you want to replace just the bolt, the official Curt part is # C22321 which has a nice bracket for extra sturdiness. If you're looking for a locking option, then the SportRack Anti-Rattle Hitch Lock # SR0901 is a confirmed fit for Curt bike racks. As for replacing the shank on your Curt 4 Bike Rack # C18030 to make it a pure 2" bike rack, Curt does not offer that part. If...
    view full answer...

Do you have a question about this Hitch Anti-Rattle?




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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Jacob T
Installed by:
Cole B
Installed by:
Randy B
Video by:
Zach D
Written by:
Jenny M
Updated by:
Kristina F

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