What Rota-Flex Pin Box do You Recommend to Replace my 1621HD Model from Lippert Components

Updated 11/02/2020 | Published 10/29/2020

Question:

I have a Grand Design Momentum 320G with a GW of 17+K lbs... It has the Lippert 1621HD kingpin, and i would like to replace it to reduce chucking, etc.... I am using the pullrite superlite hitch system and wondering if the Rota-Flex would be a good replacement. Thank you

asked by: Mike P

Helpful Expert Reply:

I really like the Trailair Rota-Flex 5th Wheel Pin Box part # LC328330. It is a confirmed replacement for your 1621 HD pin box and has an 18,000 lb. weight capacity to cover your GVWR of 17,000lbs.

Check out the linked video I made on the Rota-Flex. It was a nice improvement to the ride quality and did a good job of reducing the chucking. Check out the video for footage of it in action to actually see how it works. I like the fact that there is nothing to maintain and that the cushioning comes from a solid rubber material rather than an air bag.

It will work out well with your Pullrite Superlite fifth wheel as well.

expert reply by: Randy B