It's always good to have a spare alternator. They fail when least expected. This one I got is working fine but it's a bit grimy from the car. The car has another one in operation so I want to put this one into storage.
Step 1: Cleaning.
I used engine degreaser to get the grime off. Took only 7 minutes of cleaning and washing off in clean water to clean most of it off.
Step 2: Ready for Storage.
Now the windings and casing are a bit cleaner and into the storage room for this baby. When it is needed in the future, I can easily swap it out knowing it's ready for use!