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.

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 …

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 …

Mar 4, 2025 · It supplies electricity to the battery and electrical system to keep your car alive when the engine is running. As you drive around or idle, the alternator powers key components like …

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.

If it's time for an alternator replacement, NAPA Auto Parts carries a vast supply of alternator repair kits, condensers, bracket clamps and even rectifiers and brushes for all your alternator repair …

An alternator converts mechanical energy from the engine into alternating current, or AC, electricity. The alternator uses a rotating electromagnet to generate the AC electricity, which is …

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.

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 …