Air Ride 5th Wheel Pin Box for 5th Wheel Trailer with Lippert 1621HD Pin Box

Published 04/24/2018

Products Featured in This Question

Curt Air Ride 5th Wheel Pin Box - Lippert 1621 & 1621HD - 21,000 lbs

(92)

$1534.52

Curt Flex Air 5th Wheel Pin Box - Lippert 1621 - 21,000 lbs

(199)

$1830.34

Question:

My pin box is a Lippert model LIPP1621 HD.

asked by: Gary F

Expert Reply:

The Trailair and Trailair Flex Air pin boxes offer fantastic ride quality compared to standard pin boxes and would be the way I would go. But it all depends on the manufacturer and model number of your trailer's pin box. This information should be on a sticker or plate on the pin box itself.

If that information is not available there are some measurements you can take to identify it. Use the help article I linked below that explains the necessary measurements if you need to. Once you know the pin box you have I can make some recommendations.

expert reply by: Michael H

Gary

4/24/2018

My pin box is a Lippert model LIPP1621 HD.

Michael H.

4/24/2018

Ok, great. The 21K Trailair pin box # LC158778 will fit in place of your Lippert 1621HD pin box. The Flex Air model that fits is # LC369535 rated for 21,000 pounds. The Flex Air is the way to go. It will provide the best improvement.