Steve, As I said, Any shop can press on a pulley and put one on. There is virtually no risk of damaging a water pump , and if a shop does it as we do then I'm sure they will stand behind it. P. J. and I sell the new original aluminum pulley and I have also turned them in steel instead of aluminum. Yes, you might be able to buy a Pep Boy's water pump guaranteed for life, but it's the $65.00/hour to take it on and off that gets you if they do it. And, who's life are you talking about. Water pumps with a little maintain can last 20 years. We see that now with cars that still have the original pumps. John hervey http://www.specialtauto.com/engine.shtml