I must have a alternator and clutch made on a Wednesday! Both my clutch and alternator has 180,000 miles. What is the longest life has anyone gotten from their OEM clutch and alternator? Another question..... if your alternator had 180,000 miles on it would you run it until it quit or go ahead a replace it before it does? I am planing on taking a trip to the Outerbanks and was considering buying one and having it with me and taking the tools to replace it if it decided to die.