pully came off on 1992 Audi 100

pulley stripped of water pump off engine, what was the cause and are the enigmas easy to find at junk yards

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
pulley is part of the water pump, it came off because it's
19 years old. a brand new water pump is less than $100, so
why would you get one at a junk yard?