Mazda Repair: alternator, mazda 6i, likelihood


Question
how much will it cost to put in an alternator on a 2003 mazda 6i?

Answer
2003 with a bum alternator, that's very odd.  Seldom see alternator failures that young, you must be over 125k.  You sure it's been diagnosed properly?

On average the alternator runs $315, labor is $115.  Use a Mazda alternator not a cheap rebuild.  Mazda parts carry 12m/12k warranty, in all likelihood you'll never change it again.