Will The Curt Helux C73RJ Replace A Lippert Rhino Box?

Updated 07/28/2026 | Published 07/22/2026

Question:

Currently have a Rhino Box on my East to West “Ahara” 5th wheel camper. Wanting to update the pin box for a smoother ride. Looking at the Kirt Helix. I have attached photos of my current pin box. Am I looking at the correct model listed above for my replacement?

asked by: Frayne B

Rhino Box
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Rhino Box Sticker
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Expert Reply:

Hey Frayne, thanks for reaching out. I see you already got the Curt Helux Shock-Absorbing 5th Wheel Pin Box # C73RJ on order, but I wanted to make sure your question was answered.

Yes, the # C73RJ is exactly the correct replacement for your Rhino Box pin box. The Rhino Box uses it's own unique bolt pattern, any pin box that says "Lippert Rhino" will bolt up and fit great. Another good thing about the Helux is it is approved by Lippert so it won't void your frame warranty like a lot of other aftermarket pin boxes will.

expert reply by: Jesse M