Why it matters: A failing alternator can drain your battery, shut down your engine, and damage electronics, leaving you stranded. Early warning signs: Watch for dimming lights, dashboard battery ...

The alternator in your vehicle is not a disposable item like the engine oil, automatic transmission fluid (ATF), or radiator coolant. The average lifespan of an alternator is around 80,000 to 150,000 ...

We earn commissions from purchases you make using links in our articles. Learn more. The alternator is a device that keeps your car’s electrical system running once the engine is on. It’s essentially ...