A Hyundai motor would require pulling the timing belt to replace the water pump. They probably quoted him the water pump, crank seal, cam seal, oil pump seal, new tensioner for timing belt and new belt.
Most of the quote is probably labor..
It's ridiculous how the cars are built to not be worked on by the average Joe anymore.
On the other hand cars will have to be made to work on themselves since most of today's generation wants nothing to do with it.
Sent from the twisted mind of the Mudman