Genuine GM Alternators

Curious about what an alternator does? It's a motor within your car's engine space and it has several purposes.

How an Alternator Motor Works

Your alternator motor is powered by a serpentine belt that runs on a system of pullies. The belt spins a rotor within the alternator, which spins gears attached to a pair of spinning electromagnets. These magnets spin rapidly around a coil, which creates voltage used to charge your car battery while you drive. This keeps your battery healthy and your car starting every time you need to drive. Alternators can also power your water pump, powered-windows, or windshield wipers.

Signs of a Bad Car Alternator

Your car alternator will see a decline usually above 100,000 miles. You may begin to notice that your powered parts inside your cabin are delayed, or your lights are dimming. This could be due to low battery power. Your engine may not start, or you may hear whirring noises when starting your car. Also, check your serpentine belt for any damages that could alter the performance of your motor.

Save Money on OEM GM Alternator Parts

Alternator parts for GM can get pricey. You can save cash on your engine parts and on certain alternator pieces even up to 35% off the MSRP. We make it so entirely easy to find the right GM parts that fit your car, truck or SUV model. You can also find the right fitted parts that fit your year, make, and model in no time with our auto parts algorithm search feature.

Shop New Alternator Parts for GM

When the time comes for you to find the right fitted alternator parts for your vehicle, place an order. We ship off our parts nationwide and can have your engine needs satisfied fast. If you have any questions, reach out on our contact page.