This OEM alternator is used, but guaranteed to work with 100K miles on it. The clutched pulley is brand new and will eliminate rattling and slipping of your old pulley, which are known to live maybe 80K miles or so.

The pulley alone is $80, I'll sell you the complete working alternator for $110. Put some brushes and bearings in it (if you want, in the future, they have not failed yet).

I had to switch to a high output alt for trailer battery charging.