What Pin Box Does The Curt Helux Pin Box C63RJ Replace?
Updated 11/03/2025 | Published 01/26/2025
Question:
Does it fit to replace a 1621 HD? If so, is it compatible with the Curt Crosswing?
asked by: Sean W
0
Expert Reply:
Hello Sean, thanks for reaching out. The Curt Helux Shock-Absorbing 5th Wheel Pin Box # C63RJ replaces the Lippert Rhino Box pin box, not the 1621 HD. I actually asked Curt about this 2 weeks ago and they said right now they are only doing the Helux for the Rhino Box, but they do hope to add more fits such as the 1621 a bit later.
To answer your other question, the Helux pin box can be used with the Curt CrossWing 5th wheel hitch.
expert reply by:
Jesse M
0
Product Page this Question was Asked From
Curt Helux Shock-Absorbing 5th Wheel Pin Box - Lippert Rhino - 24K GTW - 4,850 lbs TW
- 5th Wheel Pin Box
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 24000 lbs
- Rubber Spring Suspension
- Fixed Turret
- Lippert Rhino
- CURT
more information >
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Jesse M.
11/3/2025
Hey Sean, were you able to find a pin box that fits your 1621 HD setup? Knowing what worked could help others trying to pair their hitch with the Curt CrossWing too.