What alternators do is convert mechanical energy -- machine movement, really -- into electrical energy. That electricity is what charges the battery in a car or SUV and runs its many electrical systems -- for instance, power windows, the dash's lights and displays, power steering, windshield wipers, even its entertainment system and heated seats.

How Do Alternators Work?

How alternators work is straightforward. In the case of your Acura, your engine runs a belt, which runs a pulley on the alternator, which spins a rotor shaft, which turns a set of magnetic coils. The coils produce AC power, which a rectifier on the alternator captures and turns into DC power. Your Acura then starts, and it stays running.

Signs of a Failing Acura Alternator

Unfortunately, alternator failure can happen from time to time. The causes of a bad alternator include incorrect jump-starts, installing incompatible accessories, and alternator parts getting damaged or degrading. Luckily, alternator problems are pretty easy to spot. Look for the following signs:

• Headlight malfunctions
• Your car radio working intermittently
• A burning smell under your hood, near the battery or alternator
• A whiny engine
• A dead battery
• Charging system trouble
• Complete charging system failure

If you see such symptoms, figure out what's going on by running a complete inspection and testing your vehicle's charging system. If it turns out your alternator is the issue, replace it right away. Otherwise, put in a new one every 7 years or every 80,000 to 150,000 miles. For more details on that, take a look at your owner's manual.

The Best Alternators for Acura Sedans and SUVs | Order Online

Genuine OEM alternators are compatible with a brand's models from the get-go, guaranteed. So, you shouldn't trust your repair or replacement project to anything less than a genuine Acura alternator. You're in luck: you can buy one online at our auto parts counter. We'll ship right to your address immediately, so you can take on the job in no time.