Will The Curt Helux C83RJ Fit My 2026 Rockstone Legacy 43BFC With A Rota-Flex Pin Box?
Updated 08/11/2026 | Published 08/07/2026
Question:
Currently have a 2026 Rockstone Legacy 43BFC. It has a Curt Rota-flex 24k GTW, 6K TW 5th wheel hitch. S/N SO14440407. It is a Lippert RV chassis. Will the Curt Helux C83RJ 24k/6k be a direct bolt in swap?
asked by: James C
Expert Reply:
Hey James, thanks for reaching out. The Curt Helux # C83RJ is designed to replace the Lippert Rhino box pin box which uses its own unique bolt pattern. I will need to determine exactly which pin box size/bolt pattern you have now. I don't have a good way to look up a Curt serial number (only Curt can do that), but I can still help determine what pin box you have. There should be a sticker up on the side of the pin box brackets that has the LCI item number, RPO number and serial number. If you can send me those numbers I am happy to look that up and make sure you get the right thing.
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Product Page this Question was Asked From
Curt Helux Shock-Absorbing 5th Wheel Pin Box - Lippert Rhino - 24K GTW - 6,000 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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