Cars are comprised of both a mechanical and an electrical system. Mechanical energy is converted into electrical energy by the alternator, and that powers all of the auxiliary systems of the vehicle. The alternator is essentially a small generator, and it stores electrical energy in the battery.

The Nissan 240SX alternator powers such systems as the power windows, lights, and the all important stereo system. Most cars are designed with very specific electrical requirements, and because electric generators and batteries are so heavy, they tend not to have much spare capacity.

If you have heavily upgraded your stereo system, your car’s electricity requirements change when the stereo is running and drawing power. Greater power requirements require greater powering equipment. Your stock Nissan 240SX alternator may not be able to keep up with your new stereo, so consider an upgraded (i.e. larger) alternator. You can also install a larger or second battery. While your stereo may not draw enough power to completely overwhelm and drain the electrical system, your Nissan 240SX’s alternator will have to work harder and beyond its intended design to provide the power that you need. This increased strain on the components will lead to the eventual failure of the alternator, and it will need to be replaced. Replacement and upgraded alternators are available through our online catalogue, and you can order anytime through our convenient 24/7 online ordering system.There may be a core charge for the new alternator, which will be refunded when your used alternator is received.