Unraveling the Lifespan of Alternators A Journey of Discovery

As a general rule of thumb, a factory-installed alternator in a new vehicle will likely last at least 100,000 miles or about seven years. On average, your alternator will last eight years before it needs to be replaced. When the alternator starts to wear out, you see signs it's failing. Most will last the life of car. I've taken plenty past 200k miles... Those that "fail", have actually just been ... You could easily get 400,000km out of a well protected alternators if you replace the brushes in it once. After that, the slip rings windings ... Pulling large loads, high heat conditions, even how often you start the engine all affect alternator life. IMO, 135K is a reasonable amount of ... The average lifespan of an alternator is approximately eight years. This lifespan can be reduced due to failure by other components. In short, your battery always needs a charger of sorts to maintain a charge. It's a job the alternator does if everything's working right. How ... Most alternators will last between 80,000 and 150,000 miles — or about seven years. However, your driving habits and the area where you live could wear it out ... Wow, brand new alternators making only 140 hours. That stinks! I assume your motor has the direct drive alternators, as opposed to belt driven. I think that if I had been the vehicle operator for the past 1.5 years, then the alternator would have reached 330k miles before replacement.