Simply, the alternator generates the electricity that your vehicle uses, from the spark plugs to the battery to accessories such as your sound system.

How Do Alternators Work?

Regardless of whether you drive a Volkswagen, Dodge, or Toyota vehicle, your alternator works the same way. The crankshaft turns the vertical motion of the engine pistons into a rotary motion. That motion causes a drive belt to spin a pulley on the rotor's shaft. The magnetic coils inside the rotor get agitated, thereby creating the electrical energy you need.

How Do You Spot Alternator Problems?

Sadly, even the best alternator can fail. Signs aren't always obvious, but symptoms include:

Dimmed or flickering headlights
You experience sound system issues
You hear a whining noise from the engine compartment
Your battery dies over and over again
Your power windows don't respond when you press the switch

Why Buy Genuine OEM Alternators?

Your manufacturer makes the only alternators that were designed specifically for your model, ensuring the compatible fit and stellar performance you want. We sell the real-deal right here, and at prices that are up to 35% lower than the MSRP. Choose your make, model, and year to the left, find your alternator, and check out. We'll get your order sent right out!