OEM Lexus Alternators

Your car battery helps start your Lexus. Your alternator, however, is what charges the battery so you can start in the first place. As part of your vehicle's charging system, it helps run several electrical systems -- everything from your power steering and car radio to your windshield wiper blades, power windows, and dashboard displays. It even helps warm heated seats if you've optioned them.

How Does a Car Alternator Work?

The answer's as straightforward as the process is simple. Under the hood of your Lexus, your engine drives a belt that moves a pulley. The pulley turns a rotor shaft that rotates some magnetic coils. That movement generates electricity (AC power, specifically). A rectifier captures it and turns it into direct current (better known as DC power). Everything under your hood can then get going. Unfortunately, though, alternators can go bad sometimes, usually because of jump-starting wrong, incompatible accessory installs, broken-down alternator parts, and plain old age. It usually happens without warning, too.

What Are the Signs of Alternator Problems?

Look for:

• A malfunctioning car radio
• Headlight issues
• A burning smell under your hood
• A whining engine
• A dead battery
• Complete charging system shutdown

If you think your Lexus is having alternator trouble, do a full inspection. Test its charging system specifically. Otherwise, be sure to replace your alternator every 7 years or approximately every 80,000 to 150,000 miles. However, be sure to consult your owner's manual first; it'll tell you when it's the right time. When you buy a new alternator, get a genuine Lexus. It will fit your car or SUV best. Luckily, our auto parts store sells only what your OEM makes -- a compatibility guarantee. Plus, we can ship to you in short order. Buy online now!