Cracked clutch…cause and replacement opinions? (VENDORS TOO PLEASE)

Morning.

Peeled my XP apart on the weekend and found the inner sheave had a substantial crack in it. Dealer wants $700 for a stock replacement. If I have to replace the clutch, I’m not going to spend it on a stock replacement. I may as well upgrade at the same time.

So three questions then…

1. What are possible causes of a crack like this? I was riding in very hot conditions 2 weeks ago and doing a large number of water crossings. Could hot/cold contraction cycles do that?

2. Maybe a silly question, but if the clutch cover is on and vented properly and I’m not in water deeper than the intake, where does it get in from?

3. What are my aftermarket clutch options? (VENDORS CHIME IN – IM LOOKING TO BUY 🙂 ) I ride mountain trails primarily here in the Rockies of Alberta but I do make twice yearly trips to the dunes in Idaho and Glamis as well as a yearly Moab trip so i want something thats either adjustable or broad enough to work well across these applications.

Thanks for your time.

Jerad

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