bing tracking image
  1. Hitch Adapters
  2. CURT
  3. Hitch Reducer
  4. Fits 2-1/2 Inch Hitch
  5. No Extension
  6. 2-1/2 Inch to 2 Inch
Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2"

Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2"

Item # C45405
Our Price: $30.67
You Save: 29%
Hitch Adapters
Shipping Weight: 3 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
This adapter sleeve lets you use 2" towing and hitch-mounted accessories with your 2-1/2" hitch receiver. Durable, carbide black powder coat finish. 1-800-940-8924 to order CURT hitch adapters part number C45405 or order online at Free expert support on all CURT products. Great prices and Fastest Shipping for Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2". Hitch Adapters reviews from real customers.
  • All Info
  • Reviews (267)
  • Q & A (0)
  • Videos (2)
  • Photos

CURT Hitch Adapters - C45405

  • Hitch Reducer
  • Fits 2-1/2 Inch Hitch
  • No Extension
  • 2-1/2 Inch to 2 Inch
  • Bike Racks
  • Cargo Carriers
  • Hitch Mounted Accessories
  • CURT

This adapter sleeve lets you use 2" towing and hitch-mounted accessories with your 2-1/2" hitch receiver. Durable, carbide black powder coat finish.


  • Adapter reduces a 2-1/2" x 2-1/2" hitch receiver opening to 2" x 2"
  • Lets you use 2" towing and hitch-mounted accessories
  • Easy to use - slides directly into your hitch or onto the shank of your accessory
  • Durable, carbide black powder coat finish


  • Dimensions: 5-1/2" long x 2-1/2" wide
  • Pin hole diameter: 5/8"
  • Limited lifetime warranty

Note: Weight capacity is limited to the rated capacity of your hitch receiver.

45405 Curt Reducer Sleeve 2-1/2" to 2"

Video of Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2"

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

Video Transcript for Curt Hitch Receiver Reducer Sleeve Review

Brad Hello, neighbors, it's Brad here at etrailer and today we're taking a look at the Curt Reducer Sleeve that's gonna take our receiver tube opening from a two and a half in to a two inch. So, if you have that two inch ball mount and you've upgraded to a heavier dutier truck and or maybe you just have a couple trucks in your fleet no worries. You're not going go have to buy a whole separate ball mount. You can go ahead, put that sleeve in place and be able to put your two inch ball, no problem. I really like that I can from my pickup with a two inch receiver to my diesel with a two and a half inch without having to get any additional equipment. Now it also has two notches on here which makes it nice and easy.

That way when you slide this in you can't push it too far. It's not gonna get stuck in there, you're always gonna have a little edge here to be able to pull that out if you do need to go back to that two and a half. Now what's also nice is you're not gonna need a special pin and clip. You'll just be able to slide this through. You'll align your holes and then your normal pin and clip will go through, holding that all in place.

Now you can see that our ball mount has seen better days as it's starting to rust but the great part about this being steel construction with that black powder coat finish, that's gonna hold up against that rust and corrosion so you're not gonna see that transferring over for a long time. And that was a look at the Curt Reducer Sleeve, going from a two and a half inch to a two inch..

Customer Satisfaction Score:

Customer Reviews

Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2" - C45405

Average Customer Rating:  4.8 out of 5 stars   (267 Customer Reviews)

This adapter sleeve lets you use 2" towing and hitch-mounted accessories with your 2-1/2" hitch receiver. Durable, carbide black powder coat finish.


Had exactly what I wanted in a hitch and the adapter. Fast delivery. Highly recommend


Excellent product, very sturdy. We have been using them on our trailers for years.


Sliped this adapter right in my Class V Hitch works great. I'm using it with A Curtis adj hitch and locking pins. I'm towing a 24ft 10k cargo trailer with it.


Good fit and helped greatly with mounting a Thule bike rack.


Fits perfectly in my 2.5 inch F-350 receiver. Minimal movement with a solid feel to ensure my Airstream 2 inch Equalizer hitch set-up can perform as designed.


Works great. I have 2.5" hitch on Pick up truck, while my smaller SUV is a 2". This will be handy with bike rack!


Very thick and strong.


Perfect fit, just what I needed, always fast shipping and great customer service from


Stops line it up perfectly in my 2012 GMC 2500 hitch. Only thing I don’t like is it fits a bit loose and it rattles some


Slides in a little too far, not a real problem. The fit is somewhat sloppy... would like it to fit more snug.


The hitch adapter works well, however I can't insert it all the way or the pin holes don't line up. This makes it difficult to put the hitch in and having to line up all 3 holes at once.


Does what is supposed to do. Seems solid and have had no issues. Use it to pull trailers ranging from 3,500lb to 10,000lb. Have not noticed any slop or movement beyond what I had with the stock 2" receiver. The only thing that is not great is that when pushed in all the way to the stop tabs the pin hole is past the pin hole of my receiver so you have to line up three sets of holes rather than just two.


My recommendation for this product would be to make it longer to distribute the load along the entire length of inside hitch receiver. Also to get rid of the tabs on the front because I had to cut them off to be able to slide my hitch in far enough to line up the pin holes.



Dont use it. Worthless as far as Im concerned.


Justin did an excellent job expediting my order and my order is exactly what I needed. Thanks Justin!


Works well with my trailer hotch on my nee truck


Fits like a glove!!


quality products great prices


Item fit as needed with little play. Totally necessary to retro fit my old receivers for lighter applications.


Not much to say. It's a hitch sleeve. Does what you would expect. I do like the little nubs on the end that keep the sleeve from sliding into the hitch too far.

Elliott L.


Same as before. Not much to say. Its been great.


This sleeve adaptor is perfect. My kids bought me a 2" NFL hitch cover for Christmas, even though my hitch receiver was 2-1/2" I figured I could always use a smaller receiver adaptor for another trailer that I have. Wouldn't have bought it otherwise, but it is a good fit and I may be able to use it for towing in the future (and my "gifted" hitch cover is installed).


Product arrived quickly as promised and was a perfect fit!! Thank you!

by: has become my favorite shopping website when I need something for my truck or travel trailer. I now check etrailer BEFORE amazon. They always have what I'm looking for at a great price and the delivery times are really not too bad. I'm spoiled by 2 day shipping but I've come to appreciate the quality of the products here. Having an RV specific website makes finding just the right part a lot easier. Oh and the adapter for the hitch receiver on my 2020 Ford F-250 fits perfectly. I was afraid the spare tire was so close to the back of the receiver that the shank might be too long, but nope, it's perfect.


the receiver reducer did not fit my truck, the holes for the locking pin did not align. Your site said it fit my truck but it didn’t.

Etrailer Expert

Sierra K.


Sorry to hear that. This is a universal item that converts a 2.5 inch receiver to a 2 inch. Here are the specs to see if it fits: Dimensions: 5.5 inch long x 2.5 inch wide Pin hole diameter: 5 eighths inch


Great customer service. I called to ensure I was getting the right part number. It was shipped quickly and it works perfectly.


So far so good. Got this due to our new f250 having the big hitch. Feels solid & time will tell when we hauls a 26ft trailer with it.



Working great. However due to trailer & a new f250 we had to get a whole new assembly. Oh well for the short amount of time we used it, it worked great. Price was great too.

Show More Reviews

See what our Experts say about this CURT Hitch Adapters

Do you have a question about this Hitch Adapter?

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video by:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Hayden R
Installed by:
Hayden R
Employee Bradley B
Installed by:
Bradley B
Employee Chelsea B
Written by:
Chelsea B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Noah M
Updated by:
Noah M

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.