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

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

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Curt Hitch Adapters - C45405
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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. Call 800-298-8924 to order Curt hitch adapters part number C45405 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2". Hitch Adapters reviews from real customers.
  • All Info
  • Reviews (140)
  • Q & A (75)
  • Videos (2)
  • Photos
  • Why etrailer?

Curt Hitch Adapters

  • Hitch Reducer
  • Fits 2-1/2 Inch Hitch
  • No Extension
  • Curt
  • 2-1/2 Inch to 2 Inch
  • Steel

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.


Features:

  • 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


Specs:

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


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

Item # C45405





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

Today we're going to be taking a look at the Curt 00:00:01 hitch receiver reducer sleeve, 2.5 to 2 inch. Part number C45405. This 2 inch adapter let's you use your 2 inch towing products and 2 inch accessories with your 2.5 inch receiver. The little nibs 00:00:16 here ensure that you can't insert it too far. It slides directly into your hitch or onto your 2 inch accessories. It's very easy to use, just line up your pin holes, take your pin and clip ...

If you don't have one you can pick one up here at etrailer.com and that's part number C21500. Unlike hitch extenders, it will not reduce the capacity of your hitch accessory. The whole thing's made with a carbide black powder coat finish and sterling steel construction so it's going to resist rust and corrosion. It features a limited lifetime warranty. It's going to work great for ball mounts, bike racks, or cargo carriers and that's going to complete our look. The Curt hitch receiver reducer sleeve, 2.5 to 2 inch.

Part number C45405.


Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (140 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.

- C45405
by:

Hadnt used yet, but looks well made. Nice snug fit in my 2.5" reciever. 456613


Comments
The product in itself was fine, but got tired of trying to get 3 sets of holes to line up with heavy camper hitch. Ended up buying to a 2.5 shank for my equalizer hitch.
Donald - 12/04/2018

46368

- C45405
by:

Product itself looks great. The powder coat finish is a bonus. Biggest issue i have is that the product description specificlly says "made in USA" wich is why i purchased this item. But when i recieved item, the sticker says "made in china". I purchased what i thought was an American made product and recieved a China product. 397148


Comments
Thanks for the review Fredy L. We have noted this and have updated our description on the product page and are in the process of updating our videos as well.
-- Rachael H - 07/20/2017

26389

- C45405
by:

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. 445103



- C45405
by:

etrailer.com 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. 734134



- C45405
by:

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. 418080


Comments
Same as before. Not much to say. Its been great.
Elliott L - 08/13/2018

42242

- C45405
by:

This Curt reducer (2-1/2 to 2 inch) has already been put to use. While the big trailer does take the 2-1/2 inch one, the smaller ones do not. For some reason, it has disappeared from the inside of my truck where it was kept. Many thanks to etrailer for getting this out to me so fast. I will certainly do business with you again. 457640



- C45405
by:

Fit as it should. 875088



- C45405
by:

Great product. Fits under back seat of my truck and is ready to go when needed. Compact, high quality, and easy to use. 886921



- C45405
by: 08/25/2020

Works perfectly for my needs. Very high quality. 868583



- C45405
by:

864627



- C45405
by:

Never optimal to use an adapter, but very handy to have available when you need it. I have had it for a year and only needed it a couple of times, and this one serves its purpose well. 864379



- C45405
by:

861600



- C45405
by:

It is exactly what I wanted. Thank you 850394



- C45405
by:

Great product for a great price! 826118



- C45405
by:

Excellent product. With the flair, the reducer doesn't slide to far back into the receiver while hooking it up. 820932



- C45405
by:

Good part. Does the job perfectly 818211



- C45405
by:

Works as advertised. Easy to install. Easy to use 811426



- C45405
by:

works great fast shipping 792433



- C45405
by:

Great company to buy from- sales people very helpful 792882



- C45405
by:

As expected. Powder coating is great! 781953



- C45405
by:

Needed with step 770567



- C45405
by:

Nice Piece... 770371



- C45405
by:

Perfect fit and great customer service!!! This is my 3rd or 4th purchase from etrailer. I also had one return item experience. In every case these folks have been awesome to deal with! I also love the online product and installation videos! 763955



- C45405
by:

Great product. Love the tabs on the side that keep sleeve from pushing to far back. 762213



- C45405
by:

Not a precise fit. The adapter does allow some additional movement between hitch and the receiver. I recommend using the same size hitch and receiver whenever possible and skipping the adapter. 756307


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Ask the Experts about this Curt Hitch Adapters

  • Recommendation for Upgrading to 18K Trailer Hitch on 2006 Chevy Silverado
    Going to an 18,000 pound rated trailer hitch on your 2006 Chevy Silverado 3500 will indeed require you to switch to a 2-1/2 inch receiver. This is not a problem though because as you mentioned we have various adapters available such as the Curt # C45405 that will reduce this opening to 2 inches so you can continue to use your existing accessories. Because the sleeve slides into the hitch receiver it won't restrict the use of your accessories at all in terms of capacity or function and it...
    view full answer...
  • Compatibility of Trailer Hitch Reducer Sleeve or 2-1/2 Inch WD Shank For New Truck Compatibility
    A reducer like the Reese Titan Reducer Sleeve 2-1/2" to 2" # 58102 or the Curt # C45405 will work with your current shank without any loss of capacity. Because there is another moving part, it may give you slightly more noise than using a 2-1/2 inch shank like # C17131 which will give you the 2 inch drop you referenced. If it were me, I'd use the Curt reducer sleeve.
    view full answer...
  • Will Curt 2-1/2 Inch Reducer Sleeve Fit a 2016 Chevy Silverado 3500 with 2-1/2 Inch Hitch
    I went out to the warehouse to measure Curt reducer sleeve # C45405. From the center of the hitch pin back to the end of the shank is 2-1/2 inches. To the front of the shank is 3 inches. And to the stops at the front it is 2-5/8 inches. Based on this it does sound like it will work with your 2016 Chevy Silverado 3500.
    view full answer...
  • Is It Safe to Tow Cross Country Using a 2-1/2 to 2 Reducer Sleeve
    It is perfectly safe to use a reducer sleeve like the Curt # C45405 to fit an accessory with a 2" shank into your 2-1/2" trailer hitch receiver. We do have options for you to use a ball mount with a 2-1/2" shank for when you want to tow your enclosed trailer in the future (just to have your own), but you don't have anything to worry about with your current setup. If you wanted to be sure that you are limiting the movement as much as possible then you can use the Roadmaster Quiet Hitch #...
    view full answer...
  • Options Using 2 Weight Distribution Accessories With 2-1/2 Receiver
    Either the Curt Hitch Receiver Reducer # C45405 or the Curt Weight Distribution Shank # C17131 will be acceptable solutions here. We don't have a third option that would be better here but the reducer would potentially cause more noise than the adjustable shank when in use. We have customers who purchase and successfully use both setups so no need to go the route of whole new hitch receiver here. Also weight distribution shanks are for the most part interchangeable among manufacturers. Included...
    view full answer...
  • Does The Use of a Reducer Affect the Tongue and/or Trailer Weight Capacity?
    The Curt Hitch Adapter # C45405 will not reduce the tongue weight of your hitch. Many adapters that extend the length will reduce towing capacity based on tongue weight, but this adapter isn't one of them. It will work fine with the Curt TruTrack weight distribution system, but it may add to the noise of your system. If you want to, you can use the Curt Weight Distribution Shank for 2-1/2" Hitches # C17131 to better work with your hitch and system. A reducer isn't bad, but it isn't...
    view full answer...
  • Trailer Hitch Receiver Size on a 2017 Chevrolet Silverado 2500
    Where are you measuring from? The inside of the receiver tube opening on your 2017 Chevrolet Silverado 2500 should be just a hair larger than 2-1/2" if you indeed have the 2-1/2" trailer hitch. I can't really think of any measurement that would be 2-3/4" so I recommend checking again using only the inside portion of the receiver tube. In most cases when an individual upgrades to a larger receiver tube opening, most of their previous towing accessories they have will not work which is...
    view full answer...
  • How to Use Bike Rack in 2-1/2 Inch Receiver
    To use a bike rack with your 2-1/2" receiver, all you need is Hitch Receiver Reducer Sleeve # C45405. Put this in your 2-1/2" hitch and it will allow you to use a 2" accessory such as a bike rack. Additionally, if you let me know what type of bike rack you are looking for and how many bikes you want to carry I would be happy to recommend the best option for you.
    view full answer...
  • Would 2 inch to 2-1/2 inch Hitch Sleeve Reducer Cut Capacity of Trailer Hitch
    The sleeve adapters used adapt a 2-1/2 inch hitch to fit a 2 inch hitch accessory do not diminish the towing capacity of the hitch or the accessory installed in the hitch. We have the Curt hitch reducer part # C45405 that would work well for your situation.
    view full answer...
  • Reducer Sleeve for 2-1/2-Inch Hitch to Allow Use of Husky 2-Inch Weight Distribution Shank
    It is rare that using a hitch adapter of any type has no down side but in the specific case of using a 2-inch weight distribution shank along with a reducer sleeve in a 2-1/2-inch hitch, this combination of products is perfectly safe and okay to do. In this instance it will save you a good bit of cash too. You can use Reese part # 58102 to reduce your hitch opening from 2-1/2-inches down to the 2-inch size of your Husky weight distribution shank. Curt part # C45405 is also suitable. If...
    view full answer...
  • Recommended 2-1/2 Inch Trailer Hitch Sleeve Reducer to 2 Inch Opening
    Your 2016 GMC Sierra has a 2-1/2 inch receiver, so you will want to use the Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2" # C45405. There is no such thing as a 2-3/4 inch receiver tube, so I'm guessing you measured on a slight angle or included a portion of the collar. This reducer will allow you to use all your 2 inch accessories like a bike rack, ball mount, or cargo carrier.
    view full answer...
  • 2-1/2 Inch Shank for Fastway Weight Distribution
    I have spoken to Reese about the use of weight distribution with reducer sleeves and their technical department stated that it was fine to do so but that it could have a reduced capacity based on the trailer hitch. The same goes for the Curt # C45405. But, why not just use a 2-1/2 inch shank? That would be the ideal solution and you would not have to worry about reduced capacity. I have included a link to compatible 2-1/2 inch shanks for you.
    view full answer...
  • Recommendations for Ball Mount to Fit 2-1/2 Inch Hitch Receiver On 2015 Ram 2500 Diesel
    It sounds like the trailer hitch that came on your 2015 Ram 2500 Diesel has a 2-1/2 inch hitch receiver. If this is the case, I can certainly help you find a ball mount that will work well for you! There are a couple of options to get a ball mount that will work for you. One option is a reducer sleeve, such as the Curt Hitch Receiver Reducer Sleeve # C45405. This will allow you to use your 2 inch ball mount or other 2 inch hitch accessories inside your Ram's 2-1/2 inch receiver. All...
    view full answer...
  • Adapter To Fit 2 Inch Into 2-1/2 Inch Hitch Opening
    If your Class V receiver has a 2-1/2 inch hitch opening, the best adapter is the Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2" # C45405 If both the Class IV and V hitches are 2 inches, there is no adapter needed.
    view full answer...
  • Would Curt Hitch Reducer Fit Tuff Tow Weight Distribution
    We don't carry the Tuff Tow brand of weight distribution systems, but I looked them up online and they use a standard hitch pin design so there would be no reason the Curt hitch reducer part # C45405 wouldn't work.
    view full answer...
  • Can a 2-1/2 inch Hitch Reducer be Used with Pro Series Weight Distribution
    Yes, you could use the hitch reducer part # C45405 with a Pro Series weight distribution system part # PS49583. A better option however is to use the 2-1/2 inch shank like # C17131.
    view full answer...
  • Do 2-1/2 Inch to 2 Inch Hitch Adapters Cut Hitch Capacity
    If you are reducing the hitch size like for example, from 2.5 inch to 2 inch then an adapter like the # C45405 would fit and would not reduce capacity at all. If you are trying to go from smaller to bigger though you do cut capacity by 50 percent.
    view full answer...
  • Recommended Hitch Reducer From 2-1/2 Inch To 2 Inch Receiver Opening
    A hitch and a receiver are the same thing. What I believe you are asking is if there is a reducer from a 2-1/2 inch trailer hitch receiver to a 2 inch hitch receiver to fit accessories and ball mounts. If that is the case, I recommend the Curt Hitch Receiver Reducer Sleeve - 2-1/2" to 2" # C45405. You may also want to use a hitch lock like # e98881. If you are looking for an expander, there is not one we carry to expand a 2 inch hitch receiver to fit a 2-1/2 inch ball mount.
    view full answer...
  • Recommended Parts to Stabilize Tow Bar in 2-1/2" Motorhome Receiver
    For your setup I like what you've found so far and I recommend the following parts: Curt Reducer Sleeve - # C45405 Blue Ox Hitch Receiver Immobilizer III - # BX88312 XL Anti-Rattle Trailer Hitch Receiver Lock - # SHP2040-XL (as long as the tow bar has a hollow shank) I know the Blue Ox is more pricey than the Roadmaster Quiet Hitch # RM-062, but it also is able to help stabilize both up and down movement, as well as side-to-side. The Quiet Hitch is more for the up and down movement....
    view full answer...
  • Which 2-1/2 Receiver Reducer Sleeve To Use 2 Hitch Accessories
    If I'm understanding you correctly, you're looking to reduce your 2-1/2" hitch receiver so that you can use accessories with a 2" shank and there are parts that you can use to accomplish this. I recommend using the Curt Hitch Receiver Reducer Sleeve # C45405 , which slides inside your existing 2-1/2" receiver to allow you to use towing or hitch mounted accessories normally designed for a 2" receiver.
    view full answer...
  • Will I Need a Longer Weight Distribution Shank if I Switch to a Lifted Truck?
    If you only have the shank that came with your Blue Ox SwayPro system, then you will almost definitely need a longer shank to tow with a lifted F-350. The good news is the brand isn't all that important because most shanks are interchangeable between brands and we can help you figure out what size shank you will actually need. I attached a help article to this page that talks about how to find the correct rise or drop for a ball mount. Basically, you will just want to get your truck...
    view full answer...
  • Recommended Bike Rack for a 2019 Ford F-250 with 2-1/2 Inch Hitch
    For your 2019 Ford F-250, I recommend the Kuat NV 2.0 Base 2-Bike Platform Rack part # BA22B which will do an excellent job with your two e-bikes. The Kuat NV 2.0 is one of the more quality, well made bike racks on the market. It has a wheel mount design so it won't be a problem with your lack of a horizontal frame tube and it has a 60 lb per bike weight capacity. The main reason however that I recommend the Kuat NV 2.0 is because it has a one-piece 2" shank. The majority of bike racks...
    view full answer...
  • Parts Needed to Allow Use of 2-Inch Weight Distribution System in 2-1/2-Inch Hitch
    Yes, you can use your 2-inch weight distribution hitch (WDH) in a 2-1/2-inch hitch in either of two ways. One way is to add a hitch reducer sleeve to the 2-1/2-inch hitch to drop it down to a 2-inch size to allow using your system as-is. We have many brands of reducer such as Curt # C45405; this and others appear on the linked page. The other way is to replace the 2-inch shank with a 2-1/2-inch shank and we do offer these as individual parts. All 2-1/2-inch shanks appear on the other...
    view full answer...
  • Recommended Clamp-On Weight Distribution System for 9K Trailer with 2.5 Shank
    The Husky Center Line Weight Distribution System part # HT32218 is an excellent cost effective option which features clamp-on brackets so no drilling into the frame will be required. It will be perfect for a 9,000 lbs trailer as well and it already comes with the hitch ball torqued down so you will be good to go. In regards to the 2-1/2" shank, you can either use an adapter like part # C45405 or swap out the shank with part # EQ90-02-4900.
    view full answer...
  • Capacity of the Factory Trailer Hitch on a 2017 Ford F-250 Super Duty
    If you have the 6.2 V8 engine in your 2017 Ford F-250 Super Duty than the maximum tongue weight rating is 1,500 lbs and you would not benefit from replacing the factory trailer hitch but if you have the 6.7L V8 engine then the maximum tongue weight rating is 1,800 lbs and you would see benefits from replacing the factory trailer hitch. If you have the 6.7L V8 engine then I recommend using the Curt Trailer Hitch Receiver part # C15802. This option is a Class V hitch with a 2-1/2" receiver...
    view full answer...
  • Can an Equal-I-zer Weight Distribution System be Used with a 2-1/2 to 2 Inch Reducer
    The best option would be to replace the shank that came with Equal-I-zer system # EQ37100ET with one that fits directly in a 2-1/2 inch receiver. There are 3 Equal-I-zer options: # EQ90-02-4900 with 6 inch drop or 10 inch rise # EQ90-02-4800 with 4 inch drop or 8 inch rise # EQ90-02-4700 with 3 inch drop or 7 inch rise For some 2-1/2 inch hitches the use of a reducer sleeve such as # C45405 will reduce the capacity of the hitch so I would check on that first before getting a sleeve...
    view full answer...
  • Replacement Weight Distribution Shank for 2-1/2-Inch Hitch on 2017 Ram Pickup
    We can help you with a solution to let you use your Husky Centerline 2-inch weight distribution hitch in your Ram's 2-1/2-inch receiver. There are two ways you can go. One solution is to install a hitch reducer sleeve in your Ram's 2-1/2-inch hitch, an item such as Reese # 58102, Curt # C45405 or Gen-Y # 325-GH-007. This will take up the slack inside the 2-1/2-inch receiver so that your 2-inch Husky shank fits properly. The other and better way to go is to replace the shank component...
    view full answer...
  • Does the Husky Center Line Weight Distribution System Come With a 2-1/2 Inch Shank
    I do have a 2-1/2" shank that can be used with the Husky Center Line Weight Distribution System part # HT32218, the Equal-i-zer Weight Dist Shank part # EQ90-02-4900 but the Husky Center Line Weight Distribution System does not come with one. The most cost effective option you have is to use a sleeve, the Curt Hitch Receiver Reducer Sleeve part # C45405.
    view full answer...
  • Can Curt 2-1/2-Inch Shank C17128 Be Used with Fastway Weight Distribution FA92-00-1000
    You can use a different brand of shank with a weight distribution system. Fortunately these parts are standardized for hole size and hole spacing which allows them to be swapped out when necessary. We cannot swap out components in the Fastway kit but you can certainly purchase and use the alternate shank. The Curt 2-1/2-inch shank # C17132 can be used with the Fastway weight distribution system # FA92-00-1000 if you want to avoid using a hitch reducer sleeve like # C45405.
    view full answer...
  • Availability of Dual Hitch Receiver Adapter for 2-1/2" Trailer Hitch Receiver
    I believe you are looking for a dual hitch receiver adapter like the Roadmaster # RM-077-6 that's directly compatible with the 2-1/2" receiver on your Ford F-250. While there isn't an adapter like this available that's designed for 2-1/2" receivers, you can still use a 2" model like this one by simply adding a reducer sleeve like # C45405 to your truck's receiver. This will reduce the 2-1/2" receiver to a 2" opening so that this and other 2" accessories can be used. I have attached...
    view full answer...

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Info for this part was:

Edited by:
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Expert Research:
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Expert Research:
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Expert Research:
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Video Edited:
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Video by:
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Installed by:
Cole B
Installed by:
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Written by:
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Updated by:
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