Correct Curt Flex Air 5th Wheel Pin Box for a 2021 Keystone Alpine 3910RK
Updated 03/21/2023 | Published 03/18/2023
Question:
I am trying to upgrade my Keystone Alpine 3910RK pin box to a Lippert/Curt Flex Air Ride pin box. I’m having trouble finding which one to buy. I’ve sent a picture of the label on the current pin box.
asked by: Jon E
0
Expert Reply:
The correct Curt Flex Air 5th Wheel Pin Box for a 2021 Keystone Alpine 3910RK is part # LC328492. I confirmed this with Lippert/Curt for you as well. This is a direct bolt-on replacement that will do an excellent job of absorbing road shock and providing a smooth ride.
expert reply by:
Conner L
0
Product Page this Question was Asked From
Curt Flex Air 5th Wheel Pin Box - Lippert 1621 - 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
- CURT
more information >
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