Will Curt Flex Air 5th Wheel Pin Box Fit 2021 Keystone Montana 3231CK
Updated 10/22/2025 | Published 04/07/2025
Question:
Good morning, about this model LC369535 I want to know if it fit with my: montane Legacy 2021 model 3231CK 30 inch wide thank you very much!
asked by: Steve G
0
Expert Reply:
Hey Steve! Can you send me a picture of the Lippert sticker on your pin box? We will need that serial number to identify the bolt pattern. The Curt Flex Air 5th Wheel Pin Box # LC369535 is designed to fit Lippert 1621 bolt patterns so if that is what you have it will work as a replacement.
expert reply by:
Robin H
0
Curt Flex Air 5th Wheel Pin Box
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Product Page this Question was Asked From
Curt Flex Air 5th Wheel Pin Box - Lippert 1621 - 21,000 lbs
- 5th Wheel Pin Box
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 21000 lbs
- Air Ride Suspension
- Fixed Turret
- Lippert 1621
- CURT
more information >
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Robin H.
10/22/2025
Hey Steve, were you able to check the Lippert sticker on your pin box to confirm the bolt pattern? Knowing if it matched the 1621 pattern would be really helpful for others looking at the same Curt Flex Air replacement. Your update could make it easier for the next person with a similar setup.