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.

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.

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 …

2 days 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. …

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.

Nov 18, 2025 · alternator, Source of direct electric current in modern vehicles for ignition, lights, fans, and other uses. The electric power is generated by an alternator mechanically coupled to the engine, …

Apr 19, 2023 · Your battery, alternator, and starter work together to get your vehicle started and keep it running smoothly. But since they all work together, it can be difficult to determine which one is the …