CURT Trailer Hitch Reducer Sleeve 2" to 1-1/4" - Solid Steel, Black Carbide Finish

CURT 45411 is a heavy-duty reducer sleeve that converts a 2" x 2" hitch receiver into a 1-1/4" x 1-1/4" opening for smaller shanks.

This solid steel adapter lets you use smaller ball mounts, bike racks or cargo carriers in a 2" receiver without replacing the hitch. CNC-formed and robotically welded, the sleeve is mechanically descaled and finished with a black carbide powder coat to resist rust, chips and UV exposure. Capacities remain governed by the towing vehicle and hitch, and installation is quick — just slide it into a 2" receiver and secure with a 1/2" pin (pin not included).

How do I install the CURT 45411 reducer sleeve?

Installation is straightforward and tool-free in most cases. Insert the sleeve into the 2" receiver, align the hitch pin hole, and secure it with a 1/2" pin and clip. Make sure the adapter is fully seated and check fit before towing.

• Slide into any standard 2" receiver
• Use a 1/2" pin (sold separately) to lock in place
• Verify alignment and secure pin clip before use
• Inspect fit and finish regularly for wear or corrosion

What materials and finish protect the adapter from corrosion?

The CURT 45411 is made from high-strength carbon steel for structural durability. After CNC forming and weld automation, each unit is mechanically descaled and finished with a black carbide powder coat that provides long-term resistance to rust, chips and UV damage.

• High-strength carbon steel core for towing loads
• Robotic welding for consistent seams and strength
• Mechanical descaling before coating for better adhesion
• Black carbide powder coat protects against weathering

Will this adapter change my towing capacity?

The adapter itself is sturdy, but gross trailer weight and tongue weight limits remain those set by your hitch and vehicle. Use the reducer sleeve only when the smaller shank and attached accessory are rated appropriately for your towing setup.

• Towing limits determined by vehicle and hitch, not the sleeve
• Confirm ratings on ball mount or accessory before towing
• Not intended to increase capacity—only to change shank size
• Inspect connections and ratings whenever you swap equipment

What warranty and quality assurances come with the adapter?

CURT backs this reducer sleeve with a limited lifetime warranty plus a one-year warranty covering finish and parts. The manufacturing process—CNC forming, robotic welding and mechanical descaling—ensures consistent fit and finish across units.

• Limited lifetime warranty on the product
• One-year warranty covering finish and parts
• Consistent manufacturing for reliable interchangeability
• Quality inspection before packaging

Who is this for: The CURT 45411 reducer sleeve is ideal for drivers who own a 2" hitch but need to use 1-1/4" shank accessories — like older ball mounts, lightweight cargo carriers or compact bike racks. It suits DIYers, fleet vehicles and weekend tow users who want a simple, durable way to adapt shank sizes without modifying the hitch itself. Choose this adapter when you need a robust, corrosion-resistant sleeve that installs quickly and maintains professional fit and finish.