What PSI Level Should The Air Spring Of The Curt Air Ride 5th Wheel Pin Box Be Set To
Updated 10/21/2025 | Published 06/28/2023
Question:
The shock has two lines for air pressure adjustment, not a sticker, marked on shock. Has one line then an arrow going up to a second line. Do I adjust to bottom, top or in between?
asked by: Bob J
Expert Reply:
Each version of the Curt Air Ride 5th Wheel Pin Box # LC158778 used to have a sticker signifying the correct psi level for ride quality but Lippert found that there's too many factors to consider and that each setup is different so they changed their recommendation to start out at 20 psi and drive around a bit to see if you like how it feels and then keep adding air in 5 psi increments until you reach a comfortable ride quality.
Product Page this Question was Asked From
Curt Air Ride 5th Wheel Pin Box - Lippert 1621 & 1621HD - 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
- Lippert 1621HD
- Lippert
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on 5th Wheel Pin Box
Chet
10/19/2025
Shock on the hitch has a small dent in it will that hurt the operation