How Do I Know Is The Curt Helux Shock-Absorbing 5th Wheel Pin Box C73RJ Will Work For My Camper?
Updated 09/08/2025 | Published 06/05/2025
Question:
How do I know if this will work for my toy hauler? Not sure which pin box I have.
asked by: Derick A
Expert Reply:
Hello Derick, thanks for reaching out. The only way to know if the Curt Helux Shock-Absorbing 5th Wheel Pin Box # C73RJ will work for you is to determine what pin box you have currently.
The best way to do this is to find the sticker on the pin box with the model number and SN. Typically we can have the manufacturer run those numbers to determine your pin box size. That or you can use the measuring guide I linked below.
The Curt Helux Shock-Absorbing 5th Wheel Pin Box # C73RJ replaces the Lippert Rhino pin box which is a unique bolt pattern.
If you can get me those numbers from your pin box sticker, I am happy to look into it and make a recommendation.
(click to enlarge)
Product Page this Question was Asked From
Curt Helux Shock-Absorbing 5th Wheel Pin Box - Lippert Rhino - 24K GTW - 5,400 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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on 5th Wheel Pin Box
Jesse M.
9/8/2025
Hey Derick, did you have a chance to check the model number and SN on your pin box? If you’re still looking for a solution, I’m happy to help.