Correct Trailair Replacement for Lippert 1621 Pin Box

Question:

I am interested in a trailair pin box. My pin box is a lippert item 336332. S/n 019-000759002. I can not determine which one i would need. Thanks

asked by: Bill K

Expert Reply:

I spoke with a representative of Lippert who told me that you have a Lippert 1621 pin box with a 15,500 lbs capacity. For a Trailair you could use Trailair Flex Air 5th Wheel Pin Box # LC328492.

These pin boxes are going to substantially reduce the amount of jarring and chucking you experience by absorbing the road shock with an air bag. It is a simple bolt-on design and has a capacity of 18,000 lbs, though Trailair # LC369535 would also work for you and has a capacity of 21,000 lbs.

I've added a link to a video review of this product for you to take a look at, as well as a link to our page with each of our upgrades for Lippert pin box 1621.

expert reply by: Kyle S