Unlike a generator, which produces direct current (DC) power, an alternator generates alternating current (AC) power, which is converted to DC for use in the vehicle's systems.

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 …

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 …

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.

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 or …

1 day ago · Learn how to diagnose a failing alternator and replace it safely with U.S.-specific tips, tools, costs, and common mistakes to avoid. The alternator is the heart of your vehicle’s charging system. …

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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.

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 …