NAPA part # HK4020. I can't point you to the best cheapest clutch tool as I made my own. You will also need the tool(short bar) that goes between the primary & clutch teeth so you will be able to break the nut loose in order to remove the clutch basket. Pay special attention to the order of removal. I ended up having to put the clutch back together because it is needed to keep things from just spinning when trying to break the nut loose. While you have it apart I would borrow a micrometer to measure your plates & friction discs to make sure they are within spec. If your oil was burnt, I would suspect they need replaced.
The root cause of this bearing failure is two fold. Water contamination and wheelies. Lol. While I had mine apart I replace all gaskets and the oring where the clutch cable goes into the primary. I also put grease inside the clutch cable adjustment boot and zip tied both ends of it to keep water from entering. Long winded I know, but I hope I was able to help.
Raz