EPI Mudder – Think I messed up

I ordered an EPI Mudder clutch kit from eBay and didn’t realize that EPI has a different part number for the 14 and 15 RZR XP 1000. Anyone know what the difference is in these 2 part numbers. I have a 2015 RZR and not sure which clutch I just ordered because it doesn’t have the part number listed.

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