Shop for the best Alternator for your vehicle, and you can place your order online and pick up for free at your local O'Reilly Auto Parts.

Find an alternator that fits your car and delivers the same performance as original equipment, or better. We carry long lasting replacements, like Duralast Gold alternators that come with a Limited-Lifetime …

In principle, any AC electrical generator can be called an alternator, but usually, the term refers to small rotating machines driven by automotive and other internal combustion engines. An alternator that …

Mar 4, 2025 · Learn how your car's alternator powers electrical components and charges the battery. Discover how it works, signs of a bad alternator, and when to get service.

When you start your car, the power from the battery turns the starter, which then turns the alternator belt from the accessory drive, spinning the pulley on the alternator.

Your alternator is a vital part of your vehicle's electrical system. Mounted onto a car or truck’s engine, it converts your vehicle's mechanical energy into electrical energy.

Online shopping for Alternators - Alternators & Generators from a great selection at Automotive Store.

Got a bad alternator you need to swap out? Learn all the steps to do the job right.

An alternator is a type of electric generator used in modern automobiles to charge the battery and to power the electrical system when its engine is running. Until the 1960s, automobiles used DC …

Aug 5, 2025 · Learn what an alternator is, how it works, and its key components. A beginner-friendly guide to understanding alternators in automotive and industrial applications.