That is a good question. There is no database we can use to cross-reference and a lot of fifth wheel pin box manufacturers do not include the model on their label. The best way to find out is to have a dealership run your VIN. They should be able to tell you what model pin box the camper was originally equipped with.
If that fails, we have a chart that you can use to identify the pin box model. If you take a look at the link below you will find the measurement chart. You can take measurements... view full answer...
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