Is The Rubber Pad On A Rota-Flex Pin Box Replaceable
Updated 02/03/2026 | Published 06/23/2024
Question:
Am I able to replace the rubber pad between the sub assemble and the rotating portion? According to the lippert website, it is part 420591- description is Plate 11.38x1.50. I have a customer whose plate has split and it is moving back and forth in the hitch. Im trying to find out if that is replaceable. Thanks, Kevin
asked by: Kevin S
Expert Reply:
Hey Kevin,
The rubber plate for your customer's Rota-Flex pin box is unfortunately not sold separately and would not be a replaceable part. They would be looking at a complete replacement of the pin box. To find the correct replacement we'll need to determine the bolt pattern, which we can look up if you can find the sticker that lists the RPO, LCI item, and serial numbers.
Product Page this Question was Asked From
Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 or 1621HD - 18,000 lbs
- 5th Wheel Pin Box
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 18000 lbs
- Air Ride Suspension
- Fixed Turret
- Lippert 1621
- Lippert 1621HD
- CURT
more information >
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Lazer S.
2/3/2026
Hey Kevin, were you able to find the sticker with the RPO, LCI item, and serial numbers on your customer’s Rota-Flex pin box? Knowing what you found could help others trying to match the right replacement.