CURT Hitch Trailer Receiver Reducer Sleeve Set - 3" to 2-1/2" or 2"
Two-piece CURT receiver reducer sleeve set for adapting a 3" receiver opening to accept 2-1/2" or 2" hitch-mounted accessories. The smaller sleeve can also reduce a 2-1/2" receiver opening to accept a 2" shank.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part Number | 45408 |
| Brand | CURT |
| Product Type | Receiver reducer sleeve set |
| Receiver Reduction | 3" receiver to 2-1/2" or 2" |
| Secondary Reduction | 2-1/2" receiver to 2" using the smaller sleeve |
| Material | High-strength carbon steel |
| Finish | Carbide black powder coat |
| Quantity Included | 2 reducer sleeves |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer hitch receivers and hitch-mounted accessories |
| Primary Fit | 3" receiver tube openings needing 2-1/2" or 2" accessory fitment |
| Secondary Fit | 2-1/2" receiver tube openings needing 2" accessory fitment |
| Fitment Method | Verify receiver opening size, accessory shank size, hitch pin hole alignment, and towing ratings before installation |
| Important Note | This is a reducer sleeve set, not a hitch extender and not a capacity upgrade |
Top Features
| Feature | Buyer Benefit |
|---|---|
| Multi-Size Reduction | Allows one 3" receiver to work with 2-1/2" or 2" shank accessories |
| Two-Piece Design | Use together or separately depending on receiver and accessory size |
| Carbon Steel Build | Provides a durable sleeve body for heavy-duty hitch applications |
| Powder-Coated Finish | Carbide black powder coat helps resist rust and wear |
Overview
The CURT 45408 reducer sleeve set is designed to adapt larger receiver tube openings to smaller hitch accessory shanks. Use both sleeves together to reduce a 3" receiver opening to fit a 2" shank, use the larger sleeve to reduce a 3" receiver to 2-1/2", or use the smaller sleeve to reduce a 2-1/2" receiver to 2".
R&P Service Insight
Reducer sleeves solve a common fitment problem, but they do not change the rating of the hitch, vehicle, ball mount, or accessory. Always use the lowest-rated component as the working limit.
- Receiver Size: Confirm whether your vehicle has a 3" or 2-1/2" receiver opening.
- Accessory Shank: Confirm whether the ball mount, rack, or accessory uses a 2-1/2" or 2" shank.
- Pin Alignment: Slide the accessory and sleeve fully into place and verify hitch pin hole alignment before use.
R&P Knowledge Hub
Compatibility: Fits compatible 3" and 2-1/2" receiver applications where the receiver opening, shank size, and hitch pin alignment match.
Vehicle / System Fit: Commonly used with heavy-duty truck receivers, trailer hitch accessories, ball mounts, cargo carriers, bike racks, and other compatible hitch-mounted accessories.
Installation Notes: Insert the reducer sleeve into the receiver tube opening, then insert the hitch-mounted accessory through the sleeve. Confirm full engagement and proper pin alignment before towing or hauling.
Performance Insight: The sleeve adapts physical fit only. Gross trailer weight and tongue weight remain limited to the rating of the hitch and the other towing components being used.
Brand & Fitment Note
Selling Brand: CURT
Application Reference: Receiver and shank sizes are listed as fitment references. Confirm actual measurements before ordering.
What This Means: This listing is for a CURT receiver reducer sleeve set, part number 45408.
Before Ordering: Verify receiver opening size, accessory shank size, hitch pin hole alignment, and the rated capacity of the hitch, vehicle, and accessory.
R&P Repair Insight
If an accessory feels loose, does not pin correctly, or does not seat fully, stop and check the actual receiver size and shank size. Hitch reducers must fit cleanly and allow the pin to pass through the receiver, sleeve, and accessory shank correctly.
- Do Not Stack Incorrectly: Use the sleeves only in the intended receiver-size combinations.
- Do Not Use as an Extension: This part reduces receiver size; it does not extend the hitch.
- Do Not Overrate the Setup: The working capacity is limited by the lowest-rated towing component.
Features
Reduces 3" Receiver Openings
Allows a 3" receiver tube opening to accept compatible 2-1/2" or 2" shank accessories.
Works as a 2-1/2" to 2" Reducer
The smaller sleeve can be used separately to reduce a 2-1/2" receiver opening to fit a 2" shank.
Two-Piece Sleeve Set
Includes a larger sleeve and a smaller sleeve for flexible receiver-size adaptation.
Carbon Steel Construction
Built from high-strength carbon steel with a carbide black powder coat finish for corrosion resistance.
Included Components
| Quantity | Item |
|---|---|
| 1 | Large reducer sleeve for 3" receiver applications |
| 1 | Small reducer sleeve for 2-1/2" to 2" receiver applications |
| Not Included | Hitch pin, clip, lock, ball mount, cargo carrier, bike rack, hitch accessory, or towing hardware |
