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How to Determine the Pin Box Manufacturer and Model on a 5th Wheel Trailer  


I am not sure which pin box I have on my trailer. I have a 2006 keystone Challenger 5th wheel 32TKA. Can you help? I am looking to purchase an air ride king pin.


Expert Reply:

There should be a sticker or plate on the pin box itself that lists the manufacturer and model of the pin box. If it is not present then there are some measurements you can take to determine the model of the pin box. I have included a link that explains these measurements for you.

Once the pin box is identified we can determine if there is an air ride pin box that will fit.

expert reply by:
Michael H



I have telescoping 45 degree I want to put different.. but I don't know .. what can I put .. can you help me with that...

Etrailer Expert

Kevin C.


@Jose If you're wanting to replace you're pin box we'll need to first know what bolt pattern you have. There's typically a sticker somewhere on the pin box or next to it that lists an RPO#, Serial #, and LCI Item #. If this sticker is missing then you can use the attached guide below to measure for your bolt pattern.

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