Can MORryde Cushioned 5th Wheel Pin Box Replace Lippert Trailair Rota-Flex
Updated 11/17/2025 | Published 12/26/2024
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Question:
Can I replace a lippert trail air rotaflex 3829353 with a Morryde RBP72-1621HD? I have a 2017 377mb Columbus palomino fifth wheel
asked by: Paul H
Expert Reply:
Hey Paul; I just reached out to Lippert with that number and they are unable to identify your pin box. If you can get the serial number or RPO number off of the tag on the pin box they will be able to identify the bolt pattern. If you know you have a 1621 bolt pattern then you can switch it out with the # MR64VR (aka RPB72-1621HD-03 for trailers with up to 11,500-lb GVWR) or # MR74VR (RPB72-1621HD-04 for trailers with 11,501-lb - 14,000-lb GVWR).
Product Page this Question was Asked From
MORryde Cushioned 5th Wheel Pin Box for 11.5K to 14K Trailers w/ Lippert 1621 and 1621HD
- 5th Wheel Pin Box
- Upgraded Pin Box
- Reduces Chucking
- 21000 lbs GTW
- Rubber Spring Suspension
- Fixed Turret
- Lippert 1621
- Lippert 1621HD
- MORryde
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Robin H.
11/17/2025
Hey Paul, were you able to confirm the bolt pattern on your Lippert pin box? Knowing that would show whether the MORryde pin box was a good match for your Columbus fifth wheel. Your update could make it easier for others trying to replace a similar setup.