Secure ball mounts and compatible hitch accessories in a standard 2" receiver without a separate retaining clip. The permanently attached swivel retainer stays with the pin for quick, convenient installation.
The Curt 21551 provides a simple, dependable way to secure a ball mount or hitch-mounted accessory inside a standard 2" receiver. Its 5/8" diameter pin is compatible with common Class 3, Class 4, and Class 5 receiver applications.
Instead of using a separate hitch clip, the pin features a permanently attached swivel retainer that rotates into position after insertion. This design helps eliminate misplaced clips while still allowing quick removal when the hitch accessory needs to be changed.
Designed for compatible 2" x 2" receiver tubes and accessories
Standard heavy-duty pin diameter for many Class 3, 4, and 5 hitches
Permanently attached retaining tab eliminates the need for a separate clip
Chrome plating helps resist rust and corrosion during regular towing use
Curt 21551 uses a swivel retaining clip but does not include a keyed lock. Use a dedicated locking hitch pin when theft deterrence is required.
In The Package: • Curt 21551 5/8" Swivel Hitch Pin • Permanently Attached Swivel Retainer
Designed for compatible 2" receiver tubes using a 5/8" hitch-pin hole. Always verify the receiver and accessory pin-hole size before towing.